The 1990 Chevy Celebrity engine is distributorless, the ignition is handled by a combination of the engine control module(computer) and the ignition control module. You did not mention which engine the car has. If your car has the 4 cylinder engine the ignition control module is below the intake manifold at the rear of the engine. You can follow the spark plug wires to it. The coils are mounted to the ignition control module.
If your car has the V6 the ignition control module is near the starter and again you can follow the spark plug wires to it. Again the coils are mounted to the ignition control module.
On the V6 the ignition module is under the distributor cap.
The ignition module is located in the distributor, under the distributor cap.
It is inside the distributor
The 1987 Chevy Celebrity has distributor less ignition. The timing is controlled by the engine control module and there is no provision for adjustment.
Depending on what type engine you have, the ignition module may be an integral part of the distributor cap.
That's a trick question...there isn't one. It's a distributor-less ignition system. It has 3 coil packs and and ignition module and are located right under the front exhaust manifold.
If you have disributorless ignition it will be mounted under the coil pack . If you vehicle still has a distributor it will be in the dist.
Timing on a 1987 thru 1990 Chevy Celebrity 2.8/3.1 engine is controlled by the ignition control module along with the engine control module. There is no provision or specification for manually adjusting the timing on these distributor-less models.
If you remove the distributor cap and rotor you will see it bolted to the plate and it will have electric wires pluged into it. It will be on the right side of the distributor.
Ignition control module.. located under the distributor The distributor cap is probably cracked and moisture is getting into it. Replace the cap .
The 327 cubic inch Chevrolet's distributor had points and condenser and not an ignition module. If you have an ignition module then you have a HEI distributor that was changed out.
inside the distributor