1995 SSE Rough Idle - FIXED!!! - Page 3 - 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 02-22-2007, 07:51 AM   #21
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Primaries look good. Keep us up to speed as you have a chance to work on it.
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Old 02-22-2007, 08:31 PM   #22
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All the plugs and wires still look good, they're Belden + TR55'* with only 3K on them. It'* gonna be hard to fix the injector wire, I may try to find some of that liquid electrical tape tomorrow to cover it up.
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Old 02-23-2007, 01:44 PM   #23
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Got my AutoXray 6000 today and got to play with that a little bit. When the stuttering occurs, it says weak cylinder 3, which is the middle one on the front bank right? But the exposed wire was on cylinder 5'* injector (front of car, closest to TB). I covered the exposed wire with black rtv that said it can be used to insulate wires. Any other data that I can or should look for while driving???
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Old 02-23-2007, 05:20 PM   #24
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I'd try swapping #1 & #3 spark plugs and #3 & #5 fuel injectors then see if the 'weak' cylinder moves.
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Old 02-23-2007, 06:00 PM   #25
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I just got the info off of my scanner into EZ-PC and it says now...
P07050 - Trans range sensor circuit malfunction
P0131 - Bank 1 #1 Oxygen sensor circuit low voltage
P0171 - Bank 1 System too lean
P0300 - Random misfire detected

AC Delco O2 sensor is only 3500 miles old.
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Old 02-23-2007, 11:01 PM   #26
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If those aren't old codes then I would start looking for a vacuum leak. Unmetered air could very well cause a lean condition.

Edit: I found this in anopther thread that might be more relavant:
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Originally Posted by BillBoost
On the P0171... you are possibly in luck. Remove your battery cables and inspect them....ensure you remove the rubber boots after pulling out the bolts. There'* nearly 95% chance that you have corrosion and the poor connections (I know..everything else is fine) is causing your P0171. I'm a Lean Bank One survivor... it nearly cost me a 5 gallon can of gas and a match to figure out what was causing that code.
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Old 03-07-2007, 10:33 AM   #27
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Well... I found a vacuum leak now, in a hose I had previously replaced. It'* the one that comes down off of the TB that has the small filter in it that goes into the trans. It was loud too, I can't believe I didn't catch it before...
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Old 03-13-2007, 11:54 PM   #28
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So I decided to clean my throttle body today, thinking that that may fix part of my problem. Got that done and pics to follow... Also, I decided to put in the drilled 180* t-stat that I've had for a year or two now and had yet to install, finished.

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Then I figured while I was at it I would put the split loom on my plug wires. Cylinder #1, done. Cylinder #2.... the wire ripped off of the plug connector! I wasn't even pulling and twisting that hard. A weak connection in there may have been causing my problems... So I took the set in and warrantied them at NAPA, came home and loomed em up ... Here'* the wire and it'* guts...
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I also broke a 1/4" Craftsman ratchet, got that replaced as well. Car started up right away, then started to stutter and died twice before I held the throttle down for a minute or so to keep it runnin. Took it out for a spin and so far it seems that my hesitation at 2500-3000rpm is gone. We'll see what a day of driving brings. Hopefully my FIE Injectors come soon so I can put them on while I'm on spring break...
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Old 03-14-2007, 01:13 PM   #29
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Seems like everything is goin just fine now. No more check engine light, no more codes, coolant temp holding well under 200*, and a car that runs well.
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