Bigrome34

im having an issue with my CEL. I had about 4 codes and fixed everything and got it down to 1. the code coming up is p1337 ignition misfire. i replaced the cap and rotor, the spark plugs, and the spark plug wires. the code is still popping up so i am wondering what else could be the problem. any help is much appreciated so thanks in advance.

Former User

P1337 indicates a problem with circuit for the crankshaft fluctuation (CKF) sensor located near the crankshaft gear behind the lower timing belt cover. Start by checking whether it is unplugged. The plug is forward of the alternator and the wires exit from the timing belt cover.

Bigrome34

ok so the misfire code is actually incorrect then, because that is what it came up as...i will check where you told me still though...

Bigrome34

ok so now i got the ckf fixed but now i am throwing codes P0172 (system too rich), and a pending code P0170 (fuel trim malfunction)... anyone have any thoughts? I have to go in for emissions at the end of the month so i am really trying to get this taken care of. thanks again

Bigrome34

bump

vtec95dawg

Yea dog if da cel is da problemo n just. cut that yo got better thing to do then look@ a cel. man vtec bypass tha car an it be not trip on dat. naw I'm playin dood I don't talk and type like some Internet vtecjdmfool.

If the CKF is anything like the CKP and CYL, then you probably have to simply check the wires for that system. It tells the ECU and injectors when to fire or squirt fuel into the engine. Each cylinder fire at a different time. So each cylinder needs fuel at a different time. When the CKP/CYL is not connected, each injector fire or squirts fuel at the same time, and that means 4 squirts per cam revolution.

Bigrome34

bump...anyone with a possible solution?

Vindicator9000

I believe your codes are related. From the manual, possible causes for the P0172 are:

Fuel Pressure Regulator clogged, stuck closed
Fuel return pipe clogged
Fuel injector leaking
Gasoline doesn't meet owner's manual spec
Primary HO2s deteriorated
MAP sensor range/performance
EGR system insufficient flow
EVAP purge control solenoid valve leaking, stuck opened
Valve clearance.

1. Check fuel pressure. If it's high, check FPR and return pipe. If it's low, check fuel pump, fuel feed pipe, fuel filter, and FPR.
2. Check primary O2: If voltage stays at <.3V or >.6V, replace O2.
3. Check EVAP purge. apply vacuum to the purge control solenoid valve from the intake manifold side. If it doesn't hold vacuum, replace EVAP purge control solenoid valve.

Can't find a damned thing on the P0170, but I think it says the same thing as your P0172, but less specific. You should follow the troubleshooting checklist for the P0172.

Bigrome34

thanks a lot, i will check those out and hopefully come up with something