Thread: 91 s10 help!!!
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Old 07-06-2016, 11:17 PM   #2
jhngardner367
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Join Date: Feb 2012
Location: Austin, Arkansas
Posts: 251
Re: 91 s10 help!!!

Have the catalytic converter checked ,to see if it's plugged up.
Easiest test is putting a pipe in place of the converter,and see if it still does it.
A shop will usually have a flow gauge to do it,also.
One other thing,...On my '87 that I had, the crossover pipe was a lined pipe(one pipe,inside the other),and it crushed down,choking the exhaust just enough to cause problems.
You might also check the Throttle Position Sensor,and,if it's TBI,the base gasket,under the throttle body.
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Last edited by jhngardner367; 07-06-2016 at 11:23 PM.
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