I have a '90 G20 But its the 5.7 V8 and my ECM is behind the driver's seat under the seatbelt in the wall
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.
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.
All 1987 to 1990 Chevy Celebrity engines use distributorless ignition. Timing is controlled by the engine control module in conjunction with the ignition module. There is no provision for adjustment.
Yes, a 1990 Chevy Cheyenne pickup does have an onboard computer system, commonly referred to as the Engine Control Module (ECM). This computer manages engine performance, fuel injection, and emissions control. While it may not be as advanced as modern systems, it plays a crucial role in the vehicle's operation.
The coils are bolted to the ignition control module, there is no coil wire as such.
on the drivers side just under the exhaust manifold
it's underneath the rotor in the distributor. you have to take the distributor out to change it.
The ICM is located on the passenger side, up under the dashboard. Remove the glove box and you can see it. It will be bolted to the side panel It is held on by 2 bolts, one on top, one on bottom. Disconect battery before removing! The above is the location of the engine control module or computer. If your car has the V6: The ignition control module is mounted to the lower part of the engine block on the radiator side of the engine. If you follow the spark plug wires down they will lead you to it. The coils are bolted to the ignition control module. If your car has the 4 cylinder engine: The ignition control module is below the intake manifold towards the rear of the engine. The spark plug wires will lead you directly to it. The coils are mounted on the ignition control module. It is in a awkward spot to get to.
it is located to the right side of the gas pedal up under the dash
The cruise control module on a 1990 Chevy G20 van is typically located under the dashboard on the driver's side, near the steering column. To replace it, first, disconnect the vehicle's battery to prevent any electrical issues. Then, remove the old module by disconnecting the wiring harness and unscrewing it from its mounting location. Install the new module by securing it in place and reconnecting the wiring harness, then reconnect the battery and test the cruise control system.
The climate control module is part of the control assembly. The entire assembly has to be replaced as one unit for the 1990 models.
Yes, a 4L60E transmission can work in a 1990 Chevy 1500, but some modifications may be necessary. The 1990 model typically comes with a 700R4 transmission, and the 4L60E requires an electronic control system. You will need to install a compatible engine control module (ECM) and possibly modify the wiring harness to accommodate the electronic transmission. Additionally, ensure the drive shaft and mount align properly for a successful swap.