View Single Post
 
Old 05-10-2010, 04:16 PM
tiemann66 tiemann66 is offline
Learning to use the forums
 
Join Date: Apr 2010
Posts: 11
Thumbs up Re: Fuel deliver troubleshooting for an 88 2.9L?

I might be having the same problem as you. I have an 89 with 2.9 5speed manual 4wd. As long as i baby it it seems to drive fine or if i drive it hard starting off in 1st grear and keep the rpms up seems to run fine but inbetween it hiccups pretty good. Or if i try to accelirate in a higher geer it hiccups pretty good too. I have done ignition checks fule checks and everything I can think of and still no idea. I can say it stoped for about 15 miles worth of driving after i replaced a fuel filter but i can't find any fuel problems. I even ohmed my fuel injectors and all are with in spec. No KOEO or KOER codes other than one for the TP sensor when i was doing a wiggle test.

I have done:
New wires
new cap & rotor
spark plugs are good and at gap
fuel presure test 38 psi
high speed fuel pressure test did not move gauge with regulator discnected from vaccume. Also tested while driving.
Injectors all right at about 15 ohms
new fuel filter
new TP sensor and also new tp sensore plug
Reply With Quote