Originally posted by Ray:
If the CEL is flashing at times, that is a misfire on one or more cylinders.
This could also be felt as "chugging"
Misfiring is caused by lack of fuel, spark, or compression.
As another option, perhaps the fuel pump sock is clogged causing jerking at WOT..
Search in to both misfiring, and the fuel pump becoming clogged
Ray
try changing teh filter, starvation of fuel causes teh car to lose power dramatically in the higher rpms
get ur fuel pressure tested, if ur presure drops off fast u may have a bad fuel presure regulator maybe even pump (not sure how many miles u have on it )
was it doing this b4 u changed all that, if not maybe u mixed wires, gapped the plugs incorrectly
these cars use coils right? maybe u have a bad coil causing a cylinder misfire, even tho its highly unlikely it could happen
yes bad compression would be a problem , do a leakdown test
a leaky injector will cause it to run really crappy to , u can take ur fuel rail off and turn ur key until the pump primes (dont turn on) and c if an injector is leaking
how about 02s how many miles on those?
those are just suggestions on what u should check along with what he said above
bobbyd
Last edited by bobbyd; 04/04/05 02:32 AM.
1997 30th Anniversary SS,Jethotts/ORY/GMMG, 160thermo, ,TB bypass, 1LE intake elbow, BMR STB, 32mmswaybar..21mm rear,BMR LCAs, PR,SFCs,TA,LT4 KM,255lph, shift kit
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