Dr. Jay, Merlin, Wllwren, Rogue, Gearheads, Someone help me - 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 01-16-2005, 02:34 PM   #1
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Default Dr. Jay, Merlin, Wllwren, Rogue, Gearheads, Someone help me

93 SSEI or AKA The crow is acting up and i cant pinpoint it. Car stalls out 4 times on me today while driving home. It stalls outta no where but if u weight a while it will come back on after sitting for a while. I drove wit my intake off a couple of times didnt know it fell off and it died on me from WOT would that have damaged my MAF ( no screen is on it )
Codes scanned returned none what so ever

Parts replaced
Computer
Ignition control module
Plugs wires
One thing i noticed though is that when i went to replace the crank sensor the wires to the crank was fried for about 2 inches so i redid the wires.. I monitored my car with my scanner with some light driving and this is what i came up with

Prom ID 1514
Coolant Temp 186.8*
Manifold Temp62.6*
TPS .52 Volts
Throttle Angle 3*
Engine RPM 1413
Idle Air MTR Pos 49 Steps
MAF 7gr/sec
Spark Advance 21.3*
Knock Sensor 2
Knock Retard 0
O2 sensor 884mVolts
Block Learn 145
Air Fuel Mixture 14.1
Battery Voltage 13.4 Volts
No weak cylinder
Rich lean flag = Rich
I gave as much information as i can if any more is needed or any ideas let me know so i can take care of this. Even though i am 6'6" 250 its kinda sucks pushin ur car in -3 weather at night 4 times a night
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Old 01-16-2005, 02:37 PM   #2
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also when the crow cuts off i have no spark coming at all when cranking the engine but once it sits for a while its good any ideas?
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Old 01-16-2005, 02:46 PM   #3
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The coils were put on correctly when installing the new ignition? How'* the cam sensor? These are the only two things I can think of. I'm not the best gearhead but seeing what you've replaced and the info from scanning that'* all I can think of.
Oh, you've checked to make sure the wires on the coils tight right?
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Old 01-16-2005, 02:48 PM   #4
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Kennginn,

I wouldn't know where to start.... to me it sounds electrical... ie lack of spark...
Sorry man but I'm no gearhead..... :(
I'll see if I can grab one for you.
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Old 01-16-2005, 03:12 PM   #5
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Ok, showing timing advance means the crank sensor is working properly. Good work on the repair. What concerns me is the rich condition, and like Merlin mentioned, I'd be looking at an ignition problem. The heat problem (failing when hot, working when cooling down) makes me turn towards a heat-related coil failure. I experienced this myself. When that happens, it takes out 2 cylinders. This is enough to cause a stall, and sometimes prevent a start.

What I would do to troubleshoot this is pull the plugs and see if there are an obvious 2 fouled plugs compared to the other four, and if they share a common coil
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Old 01-16-2005, 03:41 PM   #6
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Or switch the coils around. Some cylinders allow the car to run more than others. Like, if I don't have cylinder #1 plugged in, and another is out, no matter what, the car will NOT start. If I have cylinder #1 plugged in, no matter what, the car will fire if only one other cylinder is out. Shared coil or not. So, just put the top coil on the bottom, middle on top, and bottom on the middle. See what happens.


-justin
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Old 01-16-2005, 03:41 PM   #7
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hmmmm ok thanks a lot
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Old 01-16-2005, 03:43 PM   #8
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Quote:
Originally Posted by willwren
Ok, showing timing advance means the crank sensor is working properly. Good work on the repair. What concerns me is the rich condition, and like Merlin mentioned, I'd be looking at an ignition problem. The heat problem (failing when hot, working when cooling down) makes me turn towards a heat-related coil failure. I experienced this myself. When that happens, it takes out 2 cylinders. This is enough to cause a stall, and sometimes prevent a start.

What I would do to troubleshoot this is pull the plugs and see if there are an obvious 2 fouled plugs compared to the other four, and if they share a common coil
y would there be no spark?
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Old 01-16-2005, 04:52 PM   #9
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Did you check for spark on all 6?
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Old 01-16-2005, 04:58 PM   #10
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no jus one plug
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