Scanned the 95 - 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 05-29-2007, 11:59 AM   #1
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Default Scanned the 95

EchoSSEi let me borrow his scantool so I scaned on the way to work today.

A couple things showed up:

PO640 QUAD DRIVER which I did search for and it had something to do with the PCM (car seems to run fine)
PO705 Which isnt a big deal right now.

MAP failed 1
RPF Passes 4 <---what does that mean

and I was getting about 3-4 KR the most 5 at WOT

My question is what the Hell does everything else mean on the scantool
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Old 05-29-2007, 12:07 PM   #2
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Which quad driver? There are two. I can dig into my FSM'* and tell you what two or 3 things are suspect depending on which QDM fault is there. Was your foot on the brake? That can set a false QDM on some scantools. Other possibilites are evap purge, Boost control solenoid, TCC lockup, and radiator fans. There'* a couple more, this is just off the top of my head.

MAP failed? don't have a MAP sensor. The only Series 1 L67'* that have one are those with the factory boost gauge. Like my 95 SLE/SC, you have no MAP. What scantool was it?

RPF? No clue.

5 degrees of KR is not good. You want 1-2 MAX, and that'* with a smaller pulley. Aren't you still running the 2.85 stocker?
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