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jschunke

1998 Es300 Bucking

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Hi,

It's a 1998 ES300 with 152k miles. Timing belt was changed

at 150k miles (at least that's what's written on the engine).

I just bought it from a used car lot. No warranty except 1

year power train. I actually bought the car for a friend who lives

in Boston, while I'm in Jersey so I can't troubleshoot myself.

I'd like to avoid the dealer, but can a local shop work on this

vehicle? How about a Toyota dealer? This thing is a Camry, correct?

First day the engine light went on after re-fueling,

code P1153 - air fuel ratio sensor circuit response malfunction

(bank 2 sensor 1).

cleared the code, then the car started bucking, engine light went

back on with codes:

P0300 - random misfire detected

P0302 - misfire detected cyl 2

P0304 - misfire detected cyl 4

P0306 - misfire detected cyl 6

P0171 - system too lean (fuel trim)

I can start by replacing the A/F sensor. Bank 2 is for cyl 2, 4, 6?

Thanks for any assistance,

Eli

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Sh*t's hitting the fan. Took it to the Lexus stealer.

They want $1700 (including tax) to fix an exhaust leak

off bank 2. They say the leak is throwing off the

sensors.

After they fix the leak (tomorrow), they can then proceed

to diagnose further. They suspect a mass flow meter or

fuel/mixture sensor.

Does this make sense? Anyone out there?

Eli

Hi,

It's a 1998 ES300 with 152k miles. Timing belt was changed

at 150k miles (at least that's what's written on the engine).

I just bought it from a used car lot. No warranty except 1

year power train. I actually bought the car for a friend who lives

in Boston, while I'm in Jersey so I can't troubleshoot myself.

I'd like to avoid the dealer, but can a local shop work on this

vehicle? How about a Toyota dealer? This thing is a Camry, correct?

First day the engine light went on after re-fueling,

code P1153 - air fuel ratio sensor circuit response malfunction

(bank 2 sensor 1).

cleared the code, then the car started bucking, engine light went

back on with codes:

P0300 - random misfire detected

P0302 - misfire detected cyl 2

P0304 - misfire detected cyl 4

P0306 - misfire detected cyl 6

P0171 - system too lean (fuel trim)

I can start by replacing the A/F sensor. Bank 2 is for cyl 2, 4, 6?

Thanks for any assistance,

Eli

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Sh*t's hitting the fan. Took it to the Lexus stealer.

They want $1700 (including tax) to fix an exhaust leak

off bank 2. They say the leak is throwing off the

sensors.

After they fix the leak (tomorrow), they can then proceed

to diagnose further. They suspect a mass flow meter or

fuel/mixture sensor.

Does this make sense? Anyone out there?

Eli

Hi,

It's a 1998 ES300 with 152k miles. Timing belt was changed

at 150k miles (at least that's what's written on the engine).

I just bought it from a used car lot. No warranty except 1

year power train. I actually bought the car for a friend who lives

in Boston, while I'm in Jersey so I can't troubleshoot myself.

I'd like to avoid the dealer, but can a local shop work on this

vehicle? How about a Toyota dealer? This thing is a Camry, correct?

First day the engine light went on after re-fueling,

code P1153 - air fuel ratio sensor circuit response malfunction

(bank 2 sensor 1).

cleared the code, then the car started bucking, engine light went

back on with codes:

P0300 - random misfire detected

P0302 - misfire detected cyl 2

P0304 - misfire detected cyl 4

P0306 - misfire detected cyl 6

P0171 - system too lean (fuel trim)

I can start by replacing the A/F sensor. Bank 2 is for cyl 2, 4, 6?

Thanks for any assistance,

Eli

I would get a second opinion from a local mechanic. Although everyone likes to think that Lexus is some sort of esoteric specialty car, it is in fact a Toyota product that any decent mechanic is capable of servicing. My experience is that the dealer will fix problems, but they will do more than is necessary and it will cost twice as much. I stopped in at my local dealer when our check engine light came on. They wanted $500 to replace the charcoal canister. I looked in my manual when I got home and found the vacuum hose that was disconnected that was causing the problem.

I think you may have gotten scammed on the car too and you should be talking to the dealer you bought it from. He may have had the check engine light reset just before you bought it. I'd demand some documentation on the timing belt to be sure it was actually done.

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$1700 after getting a new front pipe and

cat converter, the engine light came back

on again.

Seems like the Lexus stealer is going to

fix everything but the engine light issue.

Ughhh!!!

Eli

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Now the Stealer wants $350 to replace an Air/Fuel

mixture sensor.

Just Bought all 3 Denso sensors from Rock Auto

for under $300 (including 5% off and shipping):

DENSO Part # 2344137 - Rear O2 Sensor

DENSO Part # 2349009 - Air/Fuel Ratio Sensor Front Right; Calif.

DENSO Part # 2349007 - Air/Fuel Ratio Sensor Front Left; Calif.

California means the front sensors are air/fuel vs. O2 sensors

Can anyone confirm that "right", "left" are relative to facing the

rear of the engine, So right means the fire wall?

Thanks

Eli

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