JPI

Did you change your batt recently? JPI

Again no fix yet. Lexus want to lable this as a "Concern" not a "Problem". Y'all will be the first one to know if there is a fix available. JPI

Didn't Blitz make a supercharger for this vehicle ? I remember reading an article from Super Street Mag. JPI

On the older RX300, The cross over pipe usually break and cause the exhaust leak. Since then Lexus came out with a better design. If you want to find out where is the leaking coming from, get a rag and cover your exhuast tail pipe while your car is running. You will find your leak pretty quick. ;) JPI

Are there any other codes? If not you need to follow these steps. These are your trouble area: Gas leakage on exhaust system, A/F sensor (bank 1, 2 sensor 1), heateed oxygen sensor(bank 1 sensor 2), three-way catalytic converter. - Check for gas leakage on exhaust system. - Check A/F sensor (bank 1,2 sensor 1)these sensors on the exhuast manifold. Disconnect A/F sensor connector. Use an ohmmeter to measure the resistance between terminals +B and HT. Resistance: at 68F 0.8-1.4ohms at 1472 F 1.8-3.2ohms - Check heated oxygen sensor(bank 1 sensor 2. This connector is located under the driver's seat so you have to remove it. Use an ohmmeter measure the resistance between terminal +B and HT. Resistance: at 68F 11-16ohms at 1472F 23-32ohms If these sensors are in spec then you need to replace your three-way catalytic converter. How come your mechanic doesn't test the sensors for you? I hope this help. Most like you will need to bring your car to a lexus dealer to properly diagnost your RX. Or drive your car to dallas for me to diagnost :P . JPI

1. Sensor in the front is bank 2 sensor 1. it's the before the cat. This a/f located on the exhaust manifold. 2. These two sensors are different. One is A/F and the other is O2 sensor. 3. Find out the code and I will tell you which sensor you will need. I can get parts at a discounted price. Good luck. JPI

Hey there, If he doesn't know which one is bank 1 then HE SHOULDN'T WORK ON YOUR CAR IN THE FIRST PLACE. Get the code and I will diagnost this problem for you. All you need is a 22mm wrench to replace this a/f sensor. These are the A/F(air fuel sensor). Firewall the bulkhead between the engine and the passenger compartment. The TRAC light is part of your check engine light. These are the codes Bank 1 sensor 1: P1130, P1133 Bank 2 sensor 1: P1150, P1153 Good luck and let me know. JPI

If you want to make sure the T-belt haven't replaced take the cover off and look at the belt. Inline 6 t-belt is really easy(well at least for me). Also while you are in there, replace your cam seals too. Good luck. JPI

50 hp to the wheel baby

I want to trade your GS for my Lancer Evolution VIII. :P

Are your fans running? Make sure he plug the connector back to your power steering pump. Where in tx are you located? JPI

1000 shot of NOS JPI

DAddyo, Your check engine is on because the tech miss a tooth on your timing belt. Timing belt on RX300 is kinna tricky the tech replaced your t belt didn't bother to line up with the marks. To answer everyone question, Bank 1 is by the firewall and bank 2 is in the front. JPI

This is not an easy job you might break your air controller unit. Remove the center cluter, there are two bolts that the hold the radio unit together on the bottom. This is the hardest part, try to pull out your air controller unit. It will come out but you have to be really carefull. Once you get it out. There are two more bolts on the top. Remove your radio head unit and DON'T SCRATCH THE DASH. Good luck. :magic: JPI

How is the repair coming? JPI

Let me get this straight. When the distributor leaks it will drip down to the alternator. And it will cause the alternator to go bad. Take it somewhere else to get it fix. Expect to pay around $500. JPI

why? :(

Check your connection and wires again. Look over everything really good. When was the last time you do anything to your car? Is your alternator putting out enough ? Take it to autozone or some other place for them to test your alternator. Also tell them to do a load test on your alternator. Let me know how it turn out. JPI

Check your a/c filter every 15k also it depends at where you live. Spend the extra money on the toyota filter but it is worth it. How is your a/c job coming? JPI

auto zone should have these. They are about $15. JPI

Where are you located at? These services can be done cheaper at a Lexus independent shop. JPI

What make you say SC put more stress on the engine? They are all forced induction. Turbo is free hp and SC drive off the crank. For more info turbo read Maximum Boost by Corky Bell. JPI

Kerry do not buy the whole harness it cost too much. Get you a solder gun and solder all the connection back together. I 've seen a few of these problem on the older GS. It might take you about 0.5hr to solder but at least save you some money. MAKE SURE YOU MATCH THE COLOR. Please use heatshrink. Check your fuses again. Good luck. JPI

Here is what you need: Use Dexron II pt III for ATF. Anything else will cause your tranny to shift weird. JPI

Sorry for the late reply: There are a couple things you need to do: Check your wires connection between your door and the frame, remove the door panel to exam the door lock actuator and check your window regulator. Let me me what you found. JPI