You can try going to your local auto parts supply store and borrowing their diagnostic OBD code scanner. If there is a problem it will probably not be able to retrieve any codes. If you get codes then you will have a couple of places to start troubleshooting from. After my Chevy van stopped running completely, I pulled the ECM and inspected the greenboards for damage. Sure enough, mine had a burned out spot. I replaced the whole ECM for less than $300. It had to be reprogramed to my vehicle's specific VIN number and I had to retain the knock sensor and put it back on the ECM before I installed the new one. When you buy new parts ask questions. Sometimes the sexual intellectuals at the parts counter won't tell you important information unless you ask.
the ecm on this van is on the passenger side behind the plastic kick plate
Under the driver's seat.
I think the module is in the distributor with two phillips screws
The Engine Control Module (ECM) on a 1988 Chevy G20 van is typically located beneath the dashboard on the driver's side, near the steering column. It may be found mounted to the firewall or on a bracket. Accessing it often requires removing some interior panels or components for better visibility and reach.
In a 1999 Chevy Express van, the ECM (Engine Control Module) fuse is typically located in the fuse box under the dashboard on the driver's side. You may need to remove a cover to access the fuse box. Look for a fuse labeled "ECM" or "PCM" in the fuse diagram located on the cover or in the owner's manual. If you're unsure, consult the manual for specific fuse locations and ratings.
Im not 100 percent shore but I belvie the ecm is located directly beneath the fuse box under the hood of the vehicle. It seems to be completely enclosed. I also read somewhere that they are not interchangable. please double check this.
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 1992 Chevrolet Astro Van ECM can be tested with a diagnostic tester. Most auto mechanic shops have diagnostic testers.
To change the engine timing you have to reprogram the ECM with a flash programmer from aftermarket chip and tuner companies like SCT Hypertech and Diablosport
panic of 1837
ecm just replaced mine 1994 dodge van b2500
under drivers seat