Dam thing won't go away. The light came on the same day the Stillen header was installed. I reset the computer but it keeps comin back. My brother in law has an obd2 diagnostic computer, so we hooked it up. The code that comes out is- P0420 Catalyst Efficiency Below Threshold (bank 1). Well anyways after checking some stuff, my brother in law thinks that the catalytic converter went bad. So I figure, no problem, time for an upgrade. So then he tries to get some readings from the car while it's running, but the car won't comunicate with the diagnostic comp. It will show the code and pass the tests but it won't show any of the vitals. So he hooks it up to my sister's civic and the comp works fine. He can see all the numbers that the sensors are sending. Everything from voltage to the timing. He hooks it to my car and gets nothing.
He sais the obd2 computers are the same from car to car, so something is wrong with my computer. So I figure I'm screwed cause I can't take it to the dealer. They are just gonna fuck me over. I'm sure the warranty is not gonna cover it cause of the header and all the mods I've done. So I'm not sure what to do rite now. Maybe it's just the cat that needs to be replaced. Atleast I hope thats all it is.
So what are signs that the cat has gone bad? He explained to me why he thaught it was the cat, but it kinda went over my head.
Ok, thats enough typing. Any help appreciated.
Osama, did the light go away?
He sais the obd2 computers are the same from car to car, so something is wrong with my computer. So I figure I'm screwed cause I can't take it to the dealer. They are just gonna fuck me over. I'm sure the warranty is not gonna cover it cause of the header and all the mods I've done. So I'm not sure what to do rite now. Maybe it's just the cat that needs to be replaced. Atleast I hope thats all it is.
So what are signs that the cat has gone bad? He explained to me why he thaught it was the cat, but it kinda went over my head.
Ok, thats enough typing. Any help appreciated.
Osama, did the light go away?