In Reply to: calling all 9000 owners with 3" downpipes, TML [Profile/Gallery] , Wed, 3 May 2006 10:21:17

I don't know if my O2 sensor problems are related to having a JT 3" system, but here's my history (over the course of 4 years):

After installing the JT, I replaced the O2 sensor within 10K miles. The CEL probably came on soon after the JT install, I just never got around to replacing the sensor.

After replacing the sensor, the car never performed as well as before. It was experiencing low- to no- boost. I tried diagnosing the problem for months and traced it to a bad O2 sensor. The CEL came on the next day, proving that it was the sensor. I returned that one, and they sent me a new one since it was only a few months old.

Within 20K miles, the CEL came back on. I installed another new O2 sensor, and that one has only been in for 6K miles.

I have always used silver anti-seize lube on the threads. I've tried cleaning the tips of the sensors with a propane torch, but that was always a temporary fix. I've always used the oem Bosch sensor.

The CEL would always illuminate with the codes P0130 and P0133. I noticed that the car would perform perfectly when cold, when the O2 sensor is not being used for monitoring. After the car is warmed up and the sensor then comes into play, the car is not as strong.

I've often wondered if my problems are related to having a JT system. I've never noticed anyone else complaining of a similar situation, but when I had the oem stock system in place, I never had an O2 sensor problem.

Joe
'98 96K
'93 900TC 148K

posted by 12.111....

• calling all 9000 owners with 3" downpipes, TML , Wed, 3 May 2006 10:21:17
  • Re: calling all 9000 owners with 3" downpipes, mike 94' aero, Fri, 5 May 2006 08:28:30
    • '98 cse, JT dp, 3"cat and 3" back exhaust, DCAreaSchu, Sat, 6 May 2006 06:50:36
  • Re: calling all 9000 owners with 3" downpipes, steveC, Thu, 4 May 2006 07:13:46
  • '96 aero, JT dp, 3"cat and 3" back exhaust, SQR stage4, aeroblues, Thu, 4 May 2006 05:27:22
    • Re: '96 aero, JT dp, 3"cat and 3" back exhaust, SQR stage4, TML , Thu, 4 May 2006 11:14:12
  • Re: 1995 Aero, Mike C, Thu, 4 May 2006 04:42:47
  • 1993 Aero with 3" downpipe, KevinC, Thu, 4 May 2006 02:32:22
  • !996 9000 Aero, Montana Tom , Wed, 3 May 2006 23:57:33
  • I'll let you know in the next couple of days, Craig, Wed, 3 May 2006 15:45:42
  • Don't want to jinx myself, but..., PT, Wed, 3 May 2006 12:48:59
    • Re: Don't want to jinx myself, but..., PA Aero, Wed, 3 May 2006 14:09:53
  • I've had O2 sensor headaches w/JT system..., Joe98, Wed, 3 May 2006 11:59:20 <-- Viewing This Message
  • No problem with the JT system, turbo-back >, Bill Davies, Wed, 3 May 2006 10:52:01
    • Re: No problem with the JT system, turbo-back >, matt 94 aero, Wed, 3 May 2006 20:32:47
  • Re: calling all 9000 owners with 3" downpipes, Rod , Wed, 3 May 2006 10:22:55
    • Me too, '93, only one o2 sensor, no problems-nm, AMG , Wed, 3 May 2006 10:41:56
    • Re: calling all 9000 owners with 3" downpipes, TML , Wed, 3 May 2006 10:27:11

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