I think my car is losing it...
After every time I fill up with gas, my idle will bounce for about 2 minutes. And then the CEL will come on. Let me explain:
2002 P5, manual. I have just replaced coils to fix the random misfires, replaced plugs with NGK V's, cleaned the EGR and the idle solenoid (the one above the TB) Everything is great until I try to leave the gas station.
Any ideas?
Fix Idle
Maybe the EGR needs a better cleaning or replacement?
Fix CEL
Maybe bad first cat? Why only once right after a fill up? It's a warm up code, but the car has been warm for hours.
After every time I fill up with gas, my idle will bounce for about 2 minutes. And then the CEL will come on. Let me explain:
- Drive around all day until gas is getting low.
- I fill up, replace gas cap, start car.
- It's idle will bounce from about 0 to 700 over and over. No stalling, but close.
- I can drive it fine, power is fine and after about 2 minutes it idles normal again.
- CEL comes on before I get home.
- P0421 - warm up catalyst below threshold bank 1
- I clear the CEL, and all is well until next fill up.
2002 P5, manual. I have just replaced coils to fix the random misfires, replaced plugs with NGK V's, cleaned the EGR and the idle solenoid (the one above the TB) Everything is great until I try to leave the gas station.
Any ideas?
Fix Idle
Maybe the EGR needs a better cleaning or replacement?
Fix CEL
Maybe bad first cat? Why only once right after a fill up? It's a warm up code, but the car has been warm for hours.
Last edited: