some times it runs great then there are bad days, weather has no effect. tried, new wires and spark plugs, no help.
today it ran good at first, but after an 40 min drive it started missing right when it was going thru the state inspection center, and it passed!!
ran bad the rest of way home, gets worse when trying to climb hill, I pressed the pedal down to push the car, ran real real rough, and service engine light came on.
codes I got were P0303, P0401, P0507 and P1404.
I took the EGR valve off and spayed it with carb cleaner. didn't help car was still running rough after almost cooled off. disconnected EGR 4pin connector, no change.
what else should I try?
there are times that the car has minor missing, which effects the trans not downshifting.
Thanks
today it ran good at first, but after an 40 min drive it started missing right when it was going thru the state inspection center, and it passed!!
ran bad the rest of way home, gets worse when trying to climb hill, I pressed the pedal down to push the car, ran real real rough, and service engine light came on.
codes I got were P0303, P0401, P0507 and P1404.
I took the EGR valve off and spayed it with carb cleaner. didn't help car was still running rough after almost cooled off. disconnected EGR 4pin connector, no change.
what else should I try?
there are times that the car has minor missing, which effects the trans not downshifting.
Thanks
Apr 1, 2010 at 7:41 PM
