1991 Chevrolet 1500 Pickup Q&A

1991 Chevrolet 1500 Pickup Question: missing when stopped in gear.

missing happens when stopped but does not die, but runs just fine otherwise. I have replaced the EGR valve, o2 sensor, fuel pump/filter, oil sending unit. What else can I try? -
Answer 1
STOP TRYING PARTS before you go broke and your truck is still not fixed. Have your vehicle diagnosed! -
Answer 2
you might have a bad iac valve or a bad egr silinoide -
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