Question about 1993 Isuzu Pickup
Could a lot of different things, remote diagnosis is difficult and you could replace a lot of parts guessing. I think this is a case where it is worth paying a good mechanic to at least make a diagnosis. You may choose to repair it yourself to save money, but I think it would be worth the $50 or so for proper diagnostics. Otherwise you could easily spend that much replacing good parts and not fix the problem.
Has it been tuned up recently (new plugs, wires, fuel filter, air filter)? If that needs to be done anyway, then do that, and see if it helps. Otherwise, pay for a diagnosis. It could be a mass air flow sensor, or throttle position sensor, or EGR valve, or oxygen sensor, or any of several other things.
Posted on May 30, 2011
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Posted on Jan 02, 2017
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