IS 500 - CEL problem and update
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Carolina50 (02-10-22)
#351
^^ That makes sense as very few people in Canada has experienced this so dealers may not know....But I feel the sensor detects the leak from the gaskets. So it's like swapping the smoke detectors because its chirping when the house is on fire (sort of analogy) but I could be wrong and maybe the sensors are the culprit but from what we have seen, it appears most have been gasket issues
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Brandonfu (02-10-22)
#353
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From: Under an IS F since 2008
Knowledge is power….
It’s been two weeks today since I’ve had my CEL fixed. I now have 1200 miles on it and no issues. Gaskets appear to be the fix in my situation. Car has been great and hope this is the only fix needed for the majority. Feel really bad for those still having issues. I’m crossing my finger since my closest dealership is 315 miles away.
Yep. I also just went through my service history online at Lexus and noticed the dealer notes were this:
SERVICE: EXHAUST PIPE GASKET
DESCRIPTION: EXHAUST PIPE GASKET ~|~CUSTOMER STATES CHECK ENGINE LIGHT IS ON ~|~SET DTC P013A BANK 1 SENSOR 2 SLOW RESPONDS ~|~20 SET DTC P013A BANK 1 SENSOR 2 SLOW RESPONDS
CHECKED EXHAUST FOR LEAKS AND FOUND EXHAUST FLANGE HAD A LARGE GAP CAUSING A LITTLE LEAK WHEN HOT, REMOVED EXHAUST AND RE-INSTALLED AND WAS ABLE TO REDUCE FLANGE GAP BY RE-TORQUE THE EXHAUST BOLTS. TEST DROVE
SERVICE: EXHAUST PIPE GASKET
DESCRIPTION: EXHAUST PIPE GASKET ~|~CUSTOMER STATES CHECK ENGINE LIGHT IS ON ~|~SET DTC P013A BANK 1 SENSOR 2 SLOW RESPONDS ~|~20 SET DTC P013A BANK 1 SENSOR 2 SLOW RESPONDS
CHECKED EXHAUST FOR LEAKS AND FOUND EXHAUST FLANGE HAD A LARGE GAP CAUSING A LITTLE LEAK WHEN HOT, REMOVED EXHAUST AND RE-INSTALLED AND WAS ABLE TO REDUCE FLANGE GAP BY RE-TORQUE THE EXHAUST BOLTS. TEST DROVE
@AmbyBomb I would suggest they inspect for leaks before replacing the O2 sensor…
True the code P013A points to the O2 sensor but that does not appear to be the root cause for most if not all of these cars with the CEL.
The FSM - Factory Service Manual says the 2- OEM crush gaskets are a one time use..
If removed, they should be replaced..
Honestly not sure why they are not looking for or finding a leak first.
or maybe they did
See if you can arrange to speak to your advisor or master tech working on your vehicle..
Although we all want to believe in trusting the process, you want to be fully & well informed upfront.
Joe Z
Last edited by Joe Z; 02-10-22 at 09:13 AM.
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DLPTony (02-10-22)
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Joe Z (02-10-22)
#355
To me, that means, they won't be replacing the gaskets this go around. I'm going to try and get my service manager to order the gaskets ahead of time. They probably cost $5 a piece.
#357
So today I let the car idle for about 20 minutes & noticed no CEL light. I drove the car last night for about 35 miles. At 780 miles the CEL came on then today at 815 miles no CEL. My appt to drop off the car at the Lexus dealer is on the 21st. But this time no CEL.. Maybe when putting miles on the car and breaking it in the CEL goes away.
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Brandonfu (02-11-22)
#358
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From: Under an IS F since 2008
So today I let the car idle for about 20 minutes & noticed no CEL light. I drove the car last night for about 35 miles. At 780 miles the CEL came on then today at 815 miles no CEL. My appt to drop off the car at the Lexus dealer is on the 21st. But this time no CEL.. Maybe when putting miles on the car and breaking it in the CEL goes away.
Once the leak begins to occur, if long enough it will trip the CEL..
Re alignment of flanges with new crush gaskets has been working thus far on fixing the ongoing CEL issues.
The Full picture under the IS 500 oem exhaust
Problem area(s)
Exhibit A - areas where the leak occur
Joe Z
#359
Hey Moonman, At what odometer reading did you first come across the CEL issue? Did the dealer previously fix the issue and this time its a reoccurrence of the same issue after the fix?
How long did the dealer take to fix this issue?
How long did the dealer take to fix this issue?