So lately my jeep has been stuttering when starting off from a stop. It seems to be getting worse, last week it threw a P0320 and P0420, I replaced the CPS, the O2 was replaced last year. Still having issues when I start off, not every time but frequently enough that I worry about it dying. I have to rev the engine quite a bit to get the issue resolved. Any ideas at this point would be helpful.
May be a fuel flow issue like a dirty fuel filter or clogged/dirty injectors. Replace the filter and run some Seafoam through the tank.
__________________ But the wisdom that is from above is first pure, then peaceable, gentle, and easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. James 3:17 (KJV)
I've done that and it seems to help for a while but it always keeps coming back. Could it be the TPS? Not that I want to spend more money but with my son learning to drive a stick, I'd like it to not freak him out. Seems to happen more when the jeep is warm.
Did it again this morning after driving for a while. CEL is on now, will have to wait to pull the code when I get home. It was running fine until warm, then it starts to buck and stall when taking off at lights.
I'll tell you like I tell my son, take a deep breath, calm down then say what you want to say. it really helps him to not stutter.
Could be TPS, dirty throttle body, IAC. I'd start with those first (well I'd start with that code it just threw first) and go from there. IAC and TB can be cleaned so hope its one of those being dirty.