92 SSEI scan Gearheads needed (update 3-23-06) - 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 03-21-2006, 07:27 PM   #1
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Default 92 SSEI scan Gearheads needed (update 3-23-06)

ok today i did a scan on the computer and this is was i came up with let me know if anything doesnt look right and or explain as much as you can


RPM:734
Manifold Air temp: 73.4
TPS .39 volts
Throttle angle 0%
Idle air mixture 29 steps
desired Idle 712
Maf 6gr/sec
Engine Load 52
Spark advance 19.6%
Knock sensor 2
Knock Retard 0%
O2 sensor 809 mvolts
02 cross counts 12
Block learn 157
Integrator 141
Block learn Cell 16
A/F mixture 14.8
Cruise Vacuum Solenoid off
Batt 13.8 volts
CCP Duty cycle 0%
Weak Cylinder None
Tcc Duty cycle 0%
Rich lean flag
Rich
Loop status
Closed
EGR Solenoid 1:off
EGR Solenoid 2:off
EGR solenoid 3: off
QDM A: High
QDM B :High
CCP Purge off
Fan 1 : off
Cruise Vent Solenoid: off
TCC Status: Not locked
Fan 2: off
Engine Hotlight: off
Crusie Switch: Off
Cruise RES/Accel: off
Cruise set/Coast : off
Prom ID :9554
Coolant Temp 196.2
Code History; 26 QDM A fault,31P/N Switch,56QDM b error,58 VATS
Current Codes 26 QDM A 56QDM B

any ideas what is causing theses codes?

also i smell raw fuel coming out of the exhaust
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Old 03-21-2006, 07:49 PM   #2
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I'm not gearhead but I've been watching scantool data lately cause of my own problems.

Is your O2 sensor switching between rich and lean and the voltage moving around ALOT?

I have a 95 and things might be different, but I never had more than 1 crosscount and you're showing 12 there. Might wanna pull the O2 and see if its sludgy.
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Old 03-21-2006, 11:24 PM   #3
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bump
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Old 03-22-2006, 05:30 PM   #4
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BUMP

wow im shocked nobody knows
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Old 03-22-2006, 05:33 PM   #5
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To start with did you look at your O2 sensor dude?

You need to figure out what those QDMs control and check each of those components. On my car, the previous ownerhad a QDM fault that turned out to be the BCS. He replaced it and was good to go.
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Old 03-22-2006, 08:35 PM   #6
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There have been no definitive replies because of the sheer amount of time it would take to explain every reading you posted and compare those values to the FSM. I don't have time for that personally. Not many others do either.

Most of it is self-explanatory, but the 'snapshot in time' you posted is one instantaneous moment, which in itself doesn't really give the big picture.

I think I mentioned in your other topic that both QDM'* bad generally would point to a bad PCM.
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Old 03-22-2006, 09:00 PM   #7
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At idle shouldn't the Block Learn Cell be at 0 or 1 instead of Cell 16?

Especially at 196F operating temp?

And is tha MAF a bit ahead of its self?

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Old 03-22-2006, 09:02 PM   #8
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What kind of scan tool do you have?
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Old 03-22-2006, 09:30 PM   #9
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Quote:
Originally Posted by J Wikoff
What kind of scan tool do you have?
Auto xray
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Old 03-23-2006, 09:56 AM   #10
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Can you please add the description of the QDM fault to your post.

As Morty said, his car had a QDM that related to the BCS/EVAP purge and TCC. First thing I went after was the Evap as it was the easiest to find. Then through a lucky search or someone dusting off an old topic I found one that mentioned the same QDM being fixed with a BCS. BCS did the trick and is still treating him well. There were no indications that the BCS was bad...if functioned 100%.

Like Bill said..the readings don't necessarily mean much to the codes unless those are the freeze frame items, and I'm not sure if the 95- models had that or that it would give you much to go on in your case.

Also, do you have the FSM and what diagnostics or testing have you done to start determining what the real problem behind the code.?
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