ENGINE IS STALLING AND BACKFIRING WHEN ACCELERATING UNDER A LOAD...IDLE IS GOOD...BUT SURGING..
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1992 Chevrolet G Series Van (G20) Question: HOW WILL THE ENGINE RUN IF THE THROTTLE BODY INJECTORS ARE BAD?
Answer #1Randico February 16, 2013, 15:39Technician
This is a sign that the Throttle body injector are firing at the wrong event,inside the distributor is a reluctor that fires the TBI,they have a tendency to slip out of place,A new distributor is the solution for you, also keep the air cleaner on,
Answer #2ziptie12 February 18, 2013, 23:21Master
Have fuel PRESSURE tested.
Answer #3herridan April 26, 2014, 20:43Rookie
I have a friend who had this problem. At idle, everything seemed find, but as soon as you pressed on the accelerator and put van under load, stalling and backfiring. Tried a bunch of things. The one thing that fixed it instantly was replacing the ignition coil (next to the distributor). Nice and easy fix.