1993 Pontiac Firebird Q&A
1993 Pontiac Firebird Question: my fuel pressure is 40 to 37 will this cause car to back fire when pushing on gas.
idles good can not drive start to back fire when you increase engine speed. - Visitor
No, this is adequate fuel pressure. This sounds more like an air flow meter, ignition timing or something else. Are there any fault codes stored? - Bret Bodas