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Old 03-21-2011, 11:31 PM   #11
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Thanks man for that list
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Old 03-22-2011, 03:19 PM   #12
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Update i got code 41
41 cam sensor circuit fault, igntion control circuit fault
I just replaced the cam position sensor...Bad icm?
Oh yeah and i just figured out a trick..If you have an issue with your fan not turning on put a paper clip in A and B and it will turn it on lol.
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Old 03-22-2011, 03:38 PM   #13
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that would be my guess
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Old 03-22-2011, 03:44 PM   #14
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Cool..I got a couple LN3'* and like one L27 at the shop ill yank one off and throw it on the buick..
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Old 03-22-2011, 03:46 PM   #15
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good thing you changed your av the other one was freaking me out
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Old 03-22-2011, 04:01 PM   #16
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Hope it works for ya.
There'* another trick, but its been so long using paper clips on my 87 I can't remember how it goes. Something about being able to keep the torque converter locked in 2nd and 3rd gears. Not sure which terminals to jump to do that. I have it programmed in my ECM chip to do that anyway in race mode.
It locks the converter up, no matter what the TPS tells the computer. Normally it doesn't lock unless it hits a certain speed or the TPS is below a given %. Works great at the track, wouldn't be a good idea on the street though.
One of the "nearly free" tricks on OBD1 cars is to wire a 3 position switch into the ALDL. One was stock (off), 2 was to turn the fans on, 3 was to lock the TCC when making a run. Old school (well, OBD1 type of old school) hot rodding.
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Old 03-28-2011, 12:52 AM   #17
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Well guys i replaced the ICM and crank pos sensor...Still getting code 41..and still having same issue...I need to get this car fixed...no scanner to clear the code...help
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Old 03-28-2011, 07:23 AM   #18
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"Most common cause of a persistent 041 is that the magnet (interrupter) has fallen off of the cam sprocket."

http://forums.aaca.org/f116/1991-380...de-255019.html
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Old 03-28-2011, 07:28 AM   #19
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CODE 41

Trouble Code 41 indicates that the Camshaft Sensor is not functioning properly.

The ignition module uses the Cam Sensor signal for timing the spark firing. The ignition module also passes this signal to the ECM to enable sequential fuel injection. The inability to properly determine engine position from the Cam Sensor will generate Code 41.

The engine will continue to run if the signal is lost from the sensor, however it will not restart after shut down. If the Cam signal from the ignition module to the ECM is lost while running, the ECM will switch to the simultaneous fuel injection mode. The engine can be re-started but will continue to run in the simultaneous mode as long as the fault is present.

The conditions for setting this code are:

the engine is running, and
the Cam Sensor signal is not received by the ECM in the last 1 second interval


Typical causes for this code include:

1) Loose or misadjusted Cam Sensor
2) Defective Cam Sensor-to-ECM connections
3) Defective ECM

Cam sensor installation and adjustment procedures call for very exact tolerances. It is for this reason that it is recommended that the service manual be consulted while performing any adjustment or replacement of the Camshaft Sensor.
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