I own a 89 convertible Foxbody mustang. It runs good most days but sometomes its starts to have a really bad hesitation. It hesitates so bad that you can't drive it. Also it usually occurs around 2500 to 3000 rpm. When it hesitates, the rpm starts flickering like crazy and you can't accelerate past 3000rpm. Details about the car is that it is bone stock. 302HO. No check engine light. Just airbag light is on.
I already checked for codes with a obd1 scanner and no codes came up. Only thing right now is that the airbag light keeps flashing.I'm not positive, but I don't think 89 cars had a check engine light, newer cars do.. Or was that 87???? You need to check for codes anyway, I'd say.
No codes or a code 11? More than likely a sensor issue. But could be other things like ignition, gas,vacuum leak,etc. have you recently had any work done to the car? Also this should be in tech not talk?I already checked for codes with a obd1 scanner and no codes came up. Only thing right now is that the airbag light keeps flashing.
Put a gauge on the regulator and see what pressure you have. It could be the pump or regulator or filter or...?I got a brand new distrubitor, tfi, pip. The hesitation occurs even if the car is cold. Can it be a bad fuel pump or regulator?
Oops it was a 91. Got it confused with my other mustang I sold. It shouldn't matter though.
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