Engine Performance problem
1995 Geo Prizm 4 cyl Front Wheel Drive Automatic
My wife has a 95 Geo Prizm LSI and last sunday she found it would not start.
Well I had been needing to change the fuel pump on it for awhile since it had been going in and out for a few days. So we changed the in tank pump, screen and in line filter.
The car then started and ran but would start to spit and sputter badly after 10 - 15 minutes driving and finally would die. Would have to let it set for up to 30 minutes before it would restart. Replaced the coil, rotor, and distributor cap, we also removed the catalytic converter and just put a pipe in its place for the time being since the converter was going bad according to pressure test. The car now runs fine but when in low rpm range driving from 1st to 2nd gear it will sort of chug like its trying to die for a moment. If you let off the accelerator it will stop and run fine once past 2nd gear. It does not do this at idle only while moving. Could this be caused by the O2 censors since there is no cat converter? The car has two 1 in front of and one behind the converter. If not a censor does anyone have an idea what it might be.
Thanks in advance
Sunday, May 10th, 2009 AT 6:19 PM