Where is the Ignition Module on a 1990 Buick LeSabre? The car jumps. We have replaced the Idle Arm Pulley, the harmonic balancer, the starter. Fuel pump is working fine, but I seen on this sight that someone mentioned the ignition module and to have it checked. The check engine light stays on. Someone suggested the cam sensor might be bad. How do i get codes off of this car with the tester? Please help

Asked by Sep 13, 2012 at 01:23 AM about the 1990 Buick LeSabre Limited Sedan

Question type: Maintenance & Repair

Car jumps now that we replaced the harmonic balancer.  Could it be a bad one?  The fuel pump has a psi of
around 40 when tested.  We also replaced the Idle Arm Pulley.  We don't know how to pull codes off to see what's
wrong.  The check engine light stays on. Noticed that someone suggested the ignition module

4 Answers

10,125

You can get the codes for GM cars fairly easily. Shown on the below is a picture of the connector pin terminals where you can get the GM OBD1 code. When you find this adapter connector (usually on the bottom left side of your dash panel) use a jumper wire or paper clip and connect terminals A and B. Next turn your key on but don't start. Watch your check engine flash the code/s. EXAMPLE: CODE 12: one long flash and two short flashes CODE 13: one long flash and 3 short flashes.

2 of 2 people found this helpful.
10,125

In regards to your question.. I am not entirely sure what your problem is. What is the car doing?

10,125

And the ignition module is the rectangle base that the coil packs sit on and hook into.

1 of 1 people found this helpful.
7,025

the ignition module is under where the sparkplugs hook on the coils. problems that may point to the module not functioning are.. misfiring of one or two cylinders.. power loss.. very rough idle.. raw gas in exhaust . ignition module can be checked by seeing if all the spark plugs fire. ---40psi on the fuel pump is normal. how bad is the jump? is it on shifting to drive or is it on idle? we need more info...

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • stalling problem92 buick lesabre 23 answers

    My car has 229.000 miles it likes stalling after 30 minutes and wont start for 5 minutes anyone one know what's wrong coils or crankshaft sensor I fixed the ignition module I'm not sure where to go n...

    1992 Buick LeSabre Custom

    -

    Maintenance & Repair

  • Where can I find the computer on a 1989 Buick LeSabre? 48 answers

    I have a 1989 Buick LeSabre that stalls out while in motion. Seems to happen when a part gets too hot. After sitting for awhile, I can drive for awhile again. Assume it is the Computer or the Catalyt...

    1989 Buick LeSabre

    -

    Maintenance & Repair

  • 2005 buick lesabre 2 answers

    My 05 buick lesabre is idling wrong. It fluctuates up and down, if i dont feather the gas it will shut off completely, it starts and runs, when i give ut gas its like someone is kinking and un-kink...

    2005 Buick LeSabre Limited

    -

    Maintenance & Repair

  • What could be the problem with my car?? 5 answers

    Ok. I have this buick with so many problems it seems. Recently the check engine light has been on. I had the catalytic converter taken off and just had a straight pipe ran, i changed the egr valve, ...

    1990 Buick LeSabre Custom Sedan

    -

    Maintenance & Repair

  • 2000 buick lesabre. 5 answers

    Check engine light is on and the error code says the ignition control module is getting high/low voltage.I have tested the ICM and it's fine. What could cause this?

    2000 Buick LeSabre Limited

    -

    Maintenance & Repair

LeSabre

Looking for a Used LeSabre in your area?

CarGurus has 1,924 nationwide LeSabre listings starting at $995.

ZIP:

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,090
#2 John Saffrahn
John Saffrahn
Reputation 1,760
#3 Austin Gaboda
Austin Gaboda
Reputation 1,410
View All

Related Models For Sale

Used Buick Park Avenue
440 listings starting at $4,991
Used Buick Century
825 listings starting at $1,800
Used Buick Regal
115 Great Deals out of 10,863 listings starting at $3,995
Used Honda Accord
813 Great Deals out of 84,286 listings starting at $1,050
Used Toyota Camry
1,006 Great Deals out of 90,918 listings starting at $650
Used Cadillac DeVille
7 Great Deals out of 1,640 listings starting at $1,999
Used Ford Taurus
250 Great Deals out of 20,434 listings starting at $699
Used Mercury Grand Marquis
31 Great Deals out of 1,804 listings starting at $2,250
Used Ford Crown Victoria
12 Great Deals out of 1,069 listings starting at $2,995

Used Cars For Sale

2005 Buick LeSabre For Sale
10 Great Deals out of 327 listings starting at $995
2004 Buick LeSabre For Sale
4 Great Deals out of 314 listings starting at $1,588

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.