96 s10 2.2 starts to misfire under a load when I get into the throttle

Asked by Jul 07, 2015 at 08:54 PM

Question type: Maintenance & Repair

When I ease into the gas it'll run ok
but when I go slightly harder it starts
to misfire and looses power. Any
thoughts? I've changed plugs, wires,
both cool packs, fuel filter, air filter
and just can't find the problem. I
have 230,000 miles could it be
internal?

3 Answers

1,555

Check the catalatic converter. If plugged can cause this problem. Do you have good exhaust flow?

1 of 1 people found this helpful.
66,045

Could also be faulty fuel injectors causing an overly lean mixture under load. Any trouble codes besides the misfire codes? HTH. -Jim

It just reads misfire on the code and I gutted the cat a while back. There was a rattle coming from it so I broke the rest out so its basically like a straight pipe

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