AArrrgh! 92 SSEi is driving me nuts! - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-01-2004, 08:39 PM   #31
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Default Interesting....

I wonder if I screwed up the air temp sensor between taking the ricer on, off and on again. I don't think that would cause this problem, though. Wilren -- any thoughts on this?
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Old 10-01-2004, 08:54 PM   #32
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IAT will throw a code. Use Techinfo, specifications to check it.

I'd thoroughly clean the TB (after removing it) and clean the MAF sensor with a qtip and alcohol.

Really need to get a scantool on there to see what the MAF is up to , and the IAC as well. See what the PCM is requesting for the idle, and what it'* actually doing.

Your problem is usually solved by cleaning the TB.

Remove the MAF sensor, clean it and set it aside.

Remove the TB, then remove the TPS and IAT. Clean the IAT shaft and head. Clean the TB with a toothbrush and intake-safe cleaner. Dry it out good. Re-oil the Throttle plate pivots and IAC motor shaft. REassemble, replace TB gasket, torque values in Techinfo, Specifications, and reinstall the MAF sensor. This SHOULD (75% odds) fix the idle problem. Even if it doesn't, it needs the attention. Your throttle response will be greatly improved.
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Old 10-08-2004, 11:33 PM   #33
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It'* ironic. The car has started running well, and performance has come back. It very rarely has the bogging trouble.

Tonight, I was on the way home from work, on the Interstate doing 72 on cruise control, when the car "hiccups", sets off the SES light and the C/C shuts down!

The code: #21 -- TPS (low volt fault)

The SES light shut off after 30 sec, I was able to reset the cruise and the car ran fine again.

I bought some Seafoam and am pulling the throttle body out for a good cleaning tomorrow, as per the instructions above... Hopefully, this is my problem. Crud must be affecting the sensors and messing up the car. The improvement lately may be some of the crud loosening up with use, but not necessarily. I am going to see if this fixes the problem before checking/replacing TPS or other sensors.
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Old 10-09-2004, 02:44 AM   #34
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A dirty TB will have no effect on the TPS. It'* strictly a mechanical sensor. It'* easier to replace by removing the TB, so there you go for cleaning

I'll bet you can't get into 4th gear either, can you?
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Old 10-09-2004, 03:23 PM   #35
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When my TPS finally took a dump, it wouldn't allow TC lockup or 4th gear. But that'* with the TPS disconnected. A dead spot could do what you're describing. I had one go on my 94 Suburban that was intermittent, just in one spot, about 1/4 throttle. That was a tough one to figure out, as it wasn't throwing a code.
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Old 10-10-2004, 10:09 PM   #36
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No problem w/ TCC -- yet! I bet it will act up soon though.

I also have that "dead spot" -- at 1/4 throttle as you describe! Looks like I do need a TPS after all. Might as well replace itwhen I go to clean the throttle body (still haven't found the time yet!)


Will this ever end???? Sorry, don't mean to whine.....
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