Having problems with your 1991 Isuzu Trooper ?
91 isuzu trooper no acceleration
\015 My 91 isuzu trooper 6 cyl starts up and idles but when the pedal is pressed \302\240it \302\240bogs down \302\240misses backfires. all vac lines are connected\015
Sounds to me that your cat is plugged. Try unbolting the down pipe from the driverside manifold, and pull it down a bit. Then start and rev it up again. It will be a bit louder, but if it runs fine then you know you have an exhaust plug. I had a car that I got from my brother that did that.
Check fuel pressure possibly too low fuel pump not pumping enough
Repair Help & Product Troubleshooting for 1991 Isuzu Trooper
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