have a 85 fiero 2.5 one day it started running poor or would shut off..fuel pressure is good,has spark,changed fuel filter,plugs,wires,cap and rotor,took throttle body off and cleaned it,EGR is good,fuel injector seems fine,changed map sensor,checked all vacuum lines..car starts and idles fine but if u slowly give it gas it starts to bog,hit the peddle hard and it runs fine..check engine light works but does not come on.
85 fiero 2.5 idles fine till u hit the gas
- Thread starter 68ramrod
- Start date
- Joined
- Dec 8, 2008
- Messages
- 25,780
- Reaction score
- 703
- Points
- 113
how did you determine fuel pressure is good, did you measure it with a gauge? There are some tests on this link
http://www.howstuffinmycarworks.com/GM_TBI_fuel_pressure.html
http://www.howstuffinmycarworks.com/GM_TBI_fuel_pressure.html
