wtf is wrong here?

jusgasit

New Member
Joined
Nov 1, 2010
Location
greensboring nc
95 yj with the 4 cyl 2.5 somtimes it runs fine for a lil while then
it loses power and if u rev the engine to abt 3k it pops backfires
and most of all pisses me off.at idle or anywhere below 3k it sounds like its runing ok but its not and has no power.but.....sometimes like i said it runs fine.heres a list of parts we changed,fuel pump and has 40psi constantly,cps,coil,plugs wires cap and rotor cam sensor or stater whatever it is inside the dizzy,engine has abt 100psi of compression and is even on all 4,i have been chasing this gremlin
around for 2 months so any advice would more helpful than you know.im really trying not to take it to a shop and get taken for a ride.:confused::confused:thanks for the help!
 
02 Sensor? Map Sensor?

Get yourself an volt/ohm meter and a service manual, and test all your sensors to make sure they are in spec. It'll save you some time and a whole lot of money on wasted parts.
 
Had similar problems on my '91 w/2.5. Turned out to be TPS. Did you check the codes?
 
new filter and cleaned the tank.but all my parts came from advance and have had some faulty parts from them before.
as far as checking anything with a volt meter i have never really messed with one but i checked the cam sensor volts and it read 8volts,also checked cps and it was the same.anyone live in greensboro and wanna come drink some beer tommorow hahaha?:beer::beer:
 
Back
Top