12-09-2011, 02:51 PM
Today, I diagnose codes. A few miles into my commute this morning I got a blinking CEL. Turned around went to AZ and got the codes read:
P0420 - been off and on for some time now, no biggie
P0108 - MAP - hmm could be but I unplugged it a month ago when I developed a short term rough idle.
P0300 - P0304 - Cylinder misfires in 1-4
P1399 - Yo shit is fucked and we have no idea why
Did a quick diagnosis of the MAP circuit and the signal all the way to the ECM is accurate. So I cleared the codes to get a fresh start and went back AZ:
P0300 - P0304 - Cylinder misfires in 1-4
P1399 - Yo shit is fucked and we have no idea why
Doing research seems like it could be anything, plugs,wires, injectors, dizzy, head/ head gasket problem.
The plugs are relatively new as well as the cap and rotor. Injectors (and plugs) for that matter seem unlikely that all 4 would simultaneously go bad. I am going to focus on more global causes, dizzy, ignition module?, head gasket.
Could this be a timing belt issue? I'm not sure how it would happen but skip a tooth or some shit?
P0420 - been off and on for some time now, no biggie
P0108 - MAP - hmm could be but I unplugged it a month ago when I developed a short term rough idle.
P0300 - P0304 - Cylinder misfires in 1-4
P1399 - Yo shit is fucked and we have no idea why
Did a quick diagnosis of the MAP circuit and the signal all the way to the ECM is accurate. So I cleared the codes to get a fresh start and went back AZ:
P0300 - P0304 - Cylinder misfires in 1-4
P1399 - Yo shit is fucked and we have no idea why
Doing research seems like it could be anything, plugs,wires, injectors, dizzy, head/ head gasket problem.
The plugs are relatively new as well as the cap and rotor. Injectors (and plugs) for that matter seem unlikely that all 4 would simultaneously go bad. I am going to focus on more global causes, dizzy, ignition module?, head gasket.
Could this be a timing belt issue? I'm not sure how it would happen but skip a tooth or some shit?
Current: 1985 LS1 Corvette | 2014 328i Wagon F31
Former: 2010 Ford Edge | 1999 Integra GS
I have a little bit of a rub near lock but if you are turned to lock on a track there are other problems already...
Former: 2010 Ford Edge | 1999 Integra GS
I have a little bit of a rub near lock but if you are turned to lock on a track there are other problems already...