Mbasie Posted July 20, 2005 Share Posted July 20, 2005 Does anyone know what this really means? "P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)" what part needs to be purchased? Can this be ignored? Quote Link to comment Share on other sites More sharing options...
dcfish Posted July 20, 2005 Share Posted July 20, 2005 Does anyone know what this really means?"P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)" what part needs to be purchased? Can this be ignored? ← P0100 MAF Malfunction P0101 MAF Circuit Range/Performance P0110 IAT Circuit Malfunction P0115 ECT Circuit Malfunction P0116 ECT Circuit Range/Performance P0120 TP Position Sensor/Switch ‘‘A’’ Circuit Malfunction P0121 TP Position Sensor/Switch ‘‘A’’ Circuit Range/Performance P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control P0130 HO2S Circuit Malfunction, Bank 1 Sensor 1 P0133 HO2S Circuit Slow Response, Bank 1 Sensor 1 P0135 HO2S Heater Circuit Malfunction, Bank 1 Sensor 1 P0136 HO2S Circuit Malfunction, Bank 1 Sensor 2 P0141 HO2S Heater Circuit Malfunction, Bank 1 Sensor 2 P0150 HO2S Circuit Malfunction, Bank 2 Sensor 1 P0153 HO2S Circuit Slow Response, Bank 2 Sensor 1 P0155 HO2S Heater Circuit Malfunction, Bank 2 Sensor 1 P0156 HO2S Sensor Circuit Malfunction, Bank 2 Sensor 2 P0161 HO2S Heater Circuit Malfunction, Bank 2 Sensor 2 P0170 Fuel Trim Malfunction P0171 System Too Lean (Fuel Trim) P0172 System Too Rich (Fuel Trim) P0174 System Too Lean (A/F Lean Malfunction, Bank 2) P0175 System Too Rich (A/F Rich Malfunction, Bank 2) P0300 Random Misfire Detected P0301 Misfire Detected, Cylinder 1 P0302 Misfire Detected, Cylinder 2 P0303 Misfire Detected, Cylinder 3 P0304 Misfire Detected, Cylinder 4 P0305 Misfire Detected, Cylinder 5 P0306 Misfire Detected, Cylinder 6 P0307 Misfire Detected, Cylinder 7 P0308 Misfire Detected, Cylinder 8 P0325 KS 1 Circuit Malfunction P0330 KS 2 Circuit Malfunction P0335 CKP Sensor ‘‘A’’ Circuit Malfunction P0340 CMP Circuit Malfunction P0385 CKP Sensor ‘‘B’’ Circuit Malfunction P0401 EGR Insufficient Flow P0402 EGR Excessive Flow P0403 EGR Circuit Malfunction P0420 Catalyst System Efficiency Below Threshold Bank 1 P0430 Catalyst System Efficiency Below Threshold Bank 2 P0440 EVAP Emission Control System Malfunction P0441 EVAP Emission Control System Improper Purge Flow P0446 EVAP Emission Control System Vent Control Malfunction P0450 EVAP Emission Control System Pressure Switch Malfunction P0451 EVAP Control System Pressure Sensor Range/Performance P0500 VSS Malfunction P0505 Idle Control System Malfunction P0510 Closed TP Switch Malfunction P0550 Power Steering Pressure Sensor Circuit Malfunction P1100 BARO Sensor Circuit Malfunction P1120 Accelerator Pedal Position Sensor Circuit Malfunction P1121 Accelerator Pedal Position Sensor Range/Performance Problem P1125 Throttle Control Motor Circuit Malfunction P1126 Magnetic Clutch Circuit Malfunction P1127 ECTS Actuator Power Source Circuit Malfunction P1128 Throttle Control Motor Lock Malfunction P1129 Electronic Throttle Control System P1130 Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1) P1133 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1 Sensor 1) P1135 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) P1150 Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1) P1153 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 2 Sensor 1) P1155 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) P1200 Fuel Pump Relay/ECU Circuit Malfunction P1300 Igniter Circuit Malfunction (Bank 1 Or No. 1) P1305 Igniter Circuit Malfunction, (Bank 2 Or No. 2) P1310 Igniter Circuit Malfunction (No. 3) P1315 Igniter Circuit Malfunction (No. 4) P1320 Igniter Circuit Malfunction (No. 5) P1325 Igniter Circuit Malfunction (No. 6) P1330 Igniter Circuit Malfunction (No. 7) P1335 CKP Sensor Circuit Malfunction During Engine Running P1340 Igniter Circuit Malfunction (No. 8) P1345 VVT Sensor Circuit Malfunction (Bank 1) P1346 VVT Sensor Rang/Performance Problem (Bank 1) P1349 VVT System Malfunction (Bank 1) P1350 VVT Sensor Circuit Malfunction (Bank 2) P1351 VVT Sensor Range/Performance Problem (Bank 2) P1354 VVT System Malfunction (Bank 2) P1400 Sub-TP Sensor Malfunction P1401 Sub-TP Sensor Range/Performance P1410 EGR Valve Position Sensor Circuit Malfunction P1411 EGR Valve Position Sensor Circuit Range/Performance Malfunction P1500 Starter Signal Circuit Malfunction P1520 Stop Lamp Switch Malfunction P1565 Cruise Control Main Switch Circuit Malfunction P1566 Cruise Control Main Switch Circuit Malfunction P1600 ECM BATT Malfunction P1605 Knock Control CPU Malfunction P1633 ECM Malfunction (ETCS Circuit) P1645 Body ECU Malfunction P1656 OCV Circuit Malfunction (Bank 1) P1663 OCV Circuit Malfunction (Bank 2) P1780 PNP Switch Malfunction B2785 Ignition Switch On Malfunction (Immobilizer System) B2786 Ignition Switch Off Malfunction (Immobilizer System) B2785 Ignition Switch On Malfunction (Immobilizer System) B2791 Key Unlock Warning Switch Malfunction (Immobilizer System) B2795 Unmatch Key Code (Immobilizer System) B2796 No Communication In Immobilizer System B2797 Communication Malfunction No. 1 (Immobilizer System) B2798 Communication Malfunction No. 2 (Immobilizer System) Quote Link to comment Share on other sites More sharing options...
Mbasie Posted July 21, 2005 Author Share Posted July 21, 2005 I'll rephrase - can anyone tell me 'in English' what the phrase 'Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)" means? I don't need the list of codes etc - just what work needs to be done, any ideas on cost and whether or not this should be regarded as critical... Does anyone know what this really means?"P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)" what part needs to be purchased? Can this be ignored? ← P0100 MAF Malfunction P0101 MAF Circuit Range/Performance P0110 IAT Circuit Malfunction P0115 ECT Circuit Malfunction P0116 ECT Circuit Range/Performance P0120 TP Position Sensor/Switch ‘‘A’’ Circuit Malfunction P0121 TP Position Sensor/Switch ‘‘A’’ Circuit Range/Performance P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control P0130 HO2S Circuit Malfunction, Bank 1 Sensor 1 P0133 HO2S Circuit Slow Response, Bank 1 Sensor 1 P0135 HO2S Heater Circuit Malfunction, Bank 1 Sensor 1 P0136 HO2S Circuit Malfunction, Bank 1 Sensor 2 P0141 HO2S Heater Circuit Malfunction, Bank 1 Sensor 2 P0150 HO2S Circuit Malfunction, Bank 2 Sensor 1 P0153 HO2S Circuit Slow Response, Bank 2 Sensor 1 P0155 HO2S Heater Circuit Malfunction, Bank 2 Sensor 1 P0156 HO2S Sensor Circuit Malfunction, Bank 2 Sensor 2 P0161 HO2S Heater Circuit Malfunction, Bank 2 Sensor 2 P0170 Fuel Trim Malfunction P0171 System Too Lean (Fuel Trim) P0172 System Too Rich (Fuel Trim) P0174 System Too Lean (A/F Lean Malfunction, Bank 2) P0175 System Too Rich (A/F Rich Malfunction, Bank 2) P0300 Random Misfire Detected P0301 Misfire Detected, Cylinder 1 P0302 Misfire Detected, Cylinder 2 P0303 Misfire Detected, Cylinder 3 P0304 Misfire Detected, Cylinder 4 P0305 Misfire Detected, Cylinder 5 P0306 Misfire Detected, Cylinder 6 P0307 Misfire Detected, Cylinder 7 P0308 Misfire Detected, Cylinder 8 P0325 KS 1 Circuit Malfunction P0330 KS 2 Circuit Malfunction P0335 CKP Sensor ‘‘A’’ Circuit Malfunction P0340 CMP Circuit Malfunction P0385 CKP Sensor ‘‘B’’ Circuit Malfunction P0401 EGR Insufficient Flow P0402 EGR Excessive Flow P0403 EGR Circuit Malfunction P0420 Catalyst System Efficiency Below Threshold Bank 1 P0430 Catalyst System Efficiency Below Threshold Bank 2 P0440 EVAP Emission Control System Malfunction P0441 EVAP Emission Control System Improper Purge Flow P0446 EVAP Emission Control System Vent Control Malfunction P0450 EVAP Emission Control System Pressure Switch Malfunction P0451 EVAP Control System Pressure Sensor Range/Performance P0500 VSS Malfunction P0505 Idle Control System Malfunction P0510 Closed TP Switch Malfunction P0550 Power Steering Pressure Sensor Circuit Malfunction P1100 BARO Sensor Circuit Malfunction P1120 Accelerator Pedal Position Sensor Circuit Malfunction P1121 Accelerator Pedal Position Sensor Range/Performance Problem P1125 Throttle Control Motor Circuit Malfunction P1126 Magnetic Clutch Circuit Malfunction P1127 ECTS Actuator Power Source Circuit Malfunction P1128 Throttle Control Motor Lock Malfunction P1129 Electronic Throttle Control System P1130 Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1) P1133 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1 Sensor 1) P1135 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) P1150 Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1) P1153 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 2 Sensor 1) P1155 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) P1200 Fuel Pump Relay/ECU Circuit Malfunction P1300 Igniter Circuit Malfunction (Bank 1 Or No. 1) P1305 Igniter Circuit Malfunction, (Bank 2 Or No. 2) P1310 Igniter Circuit Malfunction (No. 3) P1315 Igniter Circuit Malfunction (No. 4) P1320 Igniter Circuit Malfunction (No. 5) P1325 Igniter Circuit Malfunction (No. 6) P1330 Igniter Circuit Malfunction (No. 7) P1335 CKP Sensor Circuit Malfunction During Engine Running P1340 Igniter Circuit Malfunction (No. 8) P1345 VVT Sensor Circuit Malfunction (Bank 1) P1346 VVT Sensor Rang/Performance Problem (Bank 1) P1349 VVT System Malfunction (Bank 1) P1350 VVT Sensor Circuit Malfunction (Bank 2) P1351 VVT Sensor Range/Performance Problem (Bank 2) P1354 VVT System Malfunction (Bank 2) P1400 Sub-TP Sensor Malfunction P1401 Sub-TP Sensor Range/Performance P1410 EGR Valve Position Sensor Circuit Malfunction P1411 EGR Valve Position Sensor Circuit Range/Performance Malfunction P1500 Starter Signal Circuit Malfunction P1520 Stop Lamp Switch Malfunction P1565 Cruise Control Main Switch Circuit Malfunction P1566 Cruise Control Main Switch Circuit Malfunction P1600 ECM BATT Malfunction P1605 Knock Control CPU Malfunction P1633 ECM Malfunction (ETCS Circuit) P1645 Body ECU Malfunction P1656 OCV Circuit Malfunction (Bank 1) P1663 OCV Circuit Malfunction (Bank 2) P1780 PNP Switch Malfunction B2785 Ignition Switch On Malfunction (Immobilizer System) B2786 Ignition Switch Off Malfunction (Immobilizer System) B2785 Ignition Switch On Malfunction (Immobilizer System) B2791 Key Unlock Warning Switch Malfunction (Immobilizer System) B2795 Unmatch Key Code (Immobilizer System) B2796 No Communication In Immobilizer System B2797 Communication Malfunction No. 1 (Immobilizer System) B2798 Communication Malfunction No. 2 (Immobilizer System) ← Quote Link to comment Share on other sites More sharing options...
dcfish Posted July 21, 2005 Share Posted July 21, 2005 I'll rephrase - can anyone tell me 'in English' what the phrase 'Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)" means? I don't need the list of codes etc - just what work needs to be done, any ideas on cost and whether or not this should be regarded as critical... Does anyone know what this really means?"P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)" what part needs to be purchased? Can this be ignored? ← P0100 MAF Malfunction P0101 MAF Circuit Range/Performance P0110 IAT Circuit Malfunction P0115 ECT Circuit Malfunction P0116 ECT Circuit Range/Performance P0120 TP Position Sensor/Switch ‘‘A’’ Circuit Malfunction P0121 TP Position Sensor/Switch ‘‘A’’ Circuit Range/Performance P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control P0130 HO2S Circuit Malfunction, Bank 1 Sensor 1 P0133 HO2S Circuit Slow Response, Bank 1 Sensor 1 P0135 HO2S Heater Circuit Malfunction, Bank 1 Sensor 1 P0136 HO2S Circuit Malfunction, Bank 1 Sensor 2 P0141 HO2S Heater Circuit Malfunction, Bank 1 Sensor 2 P0150 HO2S Circuit Malfunction, Bank 2 Sensor 1 P0153 HO2S Circuit Slow Response, Bank 2 Sensor 1 P0155 HO2S Heater Circuit Malfunction, Bank 2 Sensor 1 P0156 HO2S Sensor Circuit Malfunction, Bank 2 Sensor 2 P0161 HO2S Heater Circuit Malfunction, Bank 2 Sensor 2 P0170 Fuel Trim Malfunction P0171 System Too Lean (Fuel Trim) P0172 System Too Rich (Fuel Trim) P0174 System Too Lean (A/F Lean Malfunction, Bank 2) P0175 System Too Rich (A/F Rich Malfunction, Bank 2) P0300 Random Misfire Detected P0301 Misfire Detected, Cylinder 1 P0302 Misfire Detected, Cylinder 2 P0303 Misfire Detected, Cylinder 3 P0304 Misfire Detected, Cylinder 4 P0305 Misfire Detected, Cylinder 5 P0306 Misfire Detected, Cylinder 6 P0307 Misfire Detected, Cylinder 7 P0308 Misfire Detected, Cylinder 8 P0325 KS 1 Circuit Malfunction P0330 KS 2 Circuit Malfunction P0335 CKP Sensor ‘‘A’’ Circuit Malfunction P0340 CMP Circuit Malfunction P0385 CKP Sensor ‘‘B’’ Circuit Malfunction P0401 EGR Insufficient Flow P0402 EGR Excessive Flow P0403 EGR Circuit Malfunction P0420 Catalyst System Efficiency Below Threshold Bank 1 P0430 Catalyst System Efficiency Below Threshold Bank 2 P0440 EVAP Emission Control System Malfunction P0441 EVAP Emission Control System Improper Purge Flow P0446 EVAP Emission Control System Vent Control Malfunction P0450 EVAP Emission Control System Pressure Switch Malfunction P0451 EVAP Control System Pressure Sensor Range/Performance P0500 VSS Malfunction P0505 Idle Control System Malfunction P0510 Closed TP Switch Malfunction P0550 Power Steering Pressure Sensor Circuit Malfunction P1100 BARO Sensor Circuit Malfunction P1120 Accelerator Pedal Position Sensor Circuit Malfunction P1121 Accelerator Pedal Position Sensor Range/Performance Problem P1125 Throttle Control Motor Circuit Malfunction P1126 Magnetic Clutch Circuit Malfunction P1127 ECTS Actuator Power Source Circuit Malfunction P1128 Throttle Control Motor Lock Malfunction P1129 Electronic Throttle Control System P1130 Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1) P1133 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1 Sensor 1) P1135 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) P1150 Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 2 Sensor 1) P1153 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 2 Sensor 1) P1155 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) P1200 Fuel Pump Relay/ECU Circuit Malfunction P1300 Igniter Circuit Malfunction (Bank 1 Or No. 1) P1305 Igniter Circuit Malfunction, (Bank 2 Or No. 2) P1310 Igniter Circuit Malfunction (No. 3) P1315 Igniter Circuit Malfunction (No. 4) P1320 Igniter Circuit Malfunction (No. 5) P1325 Igniter Circuit Malfunction (No. 6) P1330 Igniter Circuit Malfunction (No. 7) P1335 CKP Sensor Circuit Malfunction During Engine Running P1340 Igniter Circuit Malfunction (No. 8) P1345 VVT Sensor Circuit Malfunction (Bank 1) P1346 VVT Sensor Rang/Performance Problem (Bank 1) P1349 VVT System Malfunction (Bank 1) P1350 VVT Sensor Circuit Malfunction (Bank 2) P1351 VVT Sensor Range/Performance Problem (Bank 2) P1354 VVT System Malfunction (Bank 2) P1400 Sub-TP Sensor Malfunction P1401 Sub-TP Sensor Range/Performance P1410 EGR Valve Position Sensor Circuit Malfunction P1411 EGR Valve Position Sensor Circuit Range/Performance Malfunction P1500 Starter Signal Circuit Malfunction P1520 Stop Lamp Switch Malfunction P1565 Cruise Control Main Switch Circuit Malfunction P1566 Cruise Control Main Switch Circuit Malfunction P1600 ECM BATT Malfunction P1605 Knock Control CPU Malfunction P1633 ECM Malfunction (ETCS Circuit) P1645 Body ECU Malfunction P1656 OCV Circuit Malfunction (Bank 1) P1663 OCV Circuit Malfunction (Bank 2) P1780 PNP Switch Malfunction B2785 Ignition Switch On Malfunction (Immobilizer System) B2786 Ignition Switch Off Malfunction (Immobilizer System) B2785 Ignition Switch On Malfunction (Immobilizer System) B2791 Key Unlock Warning Switch Malfunction (Immobilizer System) B2795 Unmatch Key Code (Immobilizer System) B2796 No Communication In Immobilizer System B2797 Communication Malfunction No. 1 (Immobilizer System) B2798 Communication Malfunction No. 2 (Immobilizer System) ← ← I beleive it to be your o2 sensors need replacing. Try searching o2 sensors? Quote Link to comment Share on other sites More sharing options...
RX in NC Posted July 21, 2005 Share Posted July 21, 2005 Your Air/Fuel Ratio sensor is failing. It is also called the Bank One sensor. The sensor itself is about $200 from a parts distributor and somewhat more than that at a Lexus parts department. Labor to remove the old sensor and replace it with the new one will also run you several hundred dollars. If you're mechanically inclined, you can tackle this repair yourself. But you must first determine the exact location of the failed sensor. And be careful not to strip the threads in the manifold when you remove the old sensor. Quote Link to comment Share on other sites More sharing options...
Mbasie Posted July 23, 2005 Author Share Posted July 23, 2005 To RX in NC Thanks for the feedback - sounds like you've experienced this before. My local Lexus dealer just quoted $375 + tax for parts and labor. Does this seem fair? What rates have you been quoted for this? Quote Link to comment Share on other sites More sharing options...
RX in NC Posted July 24, 2005 Share Posted July 24, 2005 When our Air/Fuel Ratio sensor failed last August, I forced Lexus to replace it under their goodwill warranty policy. If I had to pay for it, the cost would have been about the same as what you were quoted. My wife's 2000 RX300 has suffered from many failed components during 2003 and 2004, far more than this vehicle should have experienced. As a result, I've battled with Lexus on multiple occasions and have basically had more than $9,000 worth of service performed on this vehicle at no charge to us. I research the problems thoroughly, prepare my case, and then dig in and do battle with Lexus until I get what we need. So far I'm batting 1.000 with repairs including replacing the transmission, the exhaust manifold, the front strut mount rubber bushings, the Mass Air Flow sensor, the Air/Fuel Ratio Sensor, the rear main oil seal, and a couple of other items. Very few owners possess the stomach and relentless willpower to battle service departments like I do. But it works for us and I don't mind creating a ruckus in the dealership if I need to. The key is to remain professional and knowledgeable, but absolutely ruthless as well. But we'll never have another RX in our household after this one runs its course. My wife will return to her beloved Grand Cherokee line-up. We've had three of them and it's a bulletproof vehicle that has been far more reliable for us than this fragile, underpowered, under-engineered RX300 crackerbox. I look forward to pushing it off a cliff when we're done with it.... Good luck with your Air/Fuel Ratio sensor. 1 Quote Link to comment Share on other sites More sharing options...
Mbasie Posted July 27, 2005 Author Share Posted July 27, 2005 To RX in NC Thanks for the feedback - I obviously don't check this site very often. Mine was bought used - no such manufacturer's warranty. I did purchase some extended warranty through the 'non-lexus' dealership I bought the vehicle from so I think I'll look into that although I have a feeling this will be classified as wear & tear just so they don't cover the costs... Thanks anyway. Quote Link to comment Share on other sites More sharing options...
cheskim Posted July 29, 2005 Share Posted July 29, 2005 To RX in NCThanks for the feedback - I obviously don't check this site very often. Mine was bought used - no such manufacturer's warranty. I did purchase some extended warranty through the 'non-lexus' dealership I bought the vehicle from so I think I'll look into that although I have a feeling this will be classified as wear & tear just so they don't cover the costs... Thanks anyway. ← Hi! I read about this sensor in another forum(I can't recall which one, that's what google is there for), the owner did a little research and found out that the problem sensor is basically a part of the emission system of some sort, which carries a longer warranty than the basic bumper to bumper. The service manager at the dealership fixed the thing for free. There's no harm in trying...RX in NC is absolutely right! " we only regret the things we dindn't do" Quote Link to comment Share on other sites More sharing options...
Sebastiaan Beuk Posted June 30, 2010 Share Posted June 30, 2010 Hi There, I just went through the same thing. I actually bought the replacement part (234-9009 Denso Air/Fuel Ratio Sensor) online at amazone for $139.00 For the non techie's just buy the part online and then let a mechanic put it in (1 hour) so you should be done for about $ 200.00 Hope this helps Quote Link to comment Share on other sites More sharing options...
jybondshark Posted July 18, 2010 Share Posted July 18, 2010 Does anyone know what this really means? "P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)" what part needs to be purchased? Can this be ignored? You have to replace your Air Fuel Ratio Sensor, if you open the hood of your Lexus, it's the one towards the back. You can access is from underneath the car. It's Pretty much plug and play. Put some liquid wrench or wd40 on the sensor while it's hot. It will work it's way in as it contracts. Wait about an hour until it cools down. Then go underneath the car and unplug the sensor. Then your gonna need an Oxygen sensor socket (about $10 from your local auto parts store), also a breaker bar (about $20 from the parts store. The breaker bar just give you more torc so that the sensor come out easier. Once you have it out, screw in the new one as tight as you can with your hand, then give it 1/4 turn clockwise with your oxygen sensor socket attached to your rachet. Just snug. You don't won't to over torc it. Other wise you won't be able to get it out the next time it needs changing. Hope this helps. I had the same failure code and replaced it myself. Good luck and take your time doing it. If the A/F sensor cooperates it should take you about 1/2 to complete the job Quote Link to comment Share on other sites More sharing options...
Bashir Posted September 1, 2015 Share Posted September 1, 2015 What is difference between Sensor at Bank 1 and at Bank2? Are'nt they same part at different locations? Bank 1 at rear just under firewall and Bank 2 at front behind center of radiator on exhaust pipe. Do they have to be Denso part or any generic part will work? I removed one from Bank 1 which has marking "Toyota 89467 ~ 48011 Denso 0200" I replaced it with a generic one from eBay item #221826329058, ending on Aug-13-15 01:50:30 PDT - Air Fuel Ratio Oxygen Sensor For Toyota Camry RAV4 Lexus RX300 ES300 8946748011 but have not been able to clear error codes which come back after driving about 15 miles and the check engine light keeps flashing. Quote Link to comment Share on other sites More sharing options...
Bashir Posted June 2, 2016 Share Posted June 2, 2016 I took my car to Autozone store to read the errors for check engine light. They read it and told me that my coil on cylinder 1 is bad and need to replace. I bought it from Autozone for $70 with life time warranty if this one goes bad and had them reset the check engine. I have driven the car 50 miles the check engine light has gone but engine still runs rough and grabes/ha sitters to shift to overdrive/ higher gear while driving. Can some one tell me how to fix this condition? IIs this related due to deity and clogged screen on OCV on Bank 1 or Bank 2? I need guidance and help of a pro tech who may post a link to fix this problem with steps by step instructions to make this repair. Quote Link to comment Share on other sites More sharing options...
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