P1337 (54) engine code

silv97cvc · 02-23-2004, 10:52 PM

My Fiance's civic is throwing a P1337 (54) OBD II code. The book I have says something about engine Crankshaft speed sensor no signal. What could cause this. Is this simply a wire that has come loose, or a sensor that has gone bad or what. The car has 87,000 miles on it. One thing I know that needs to be done is a the valves need to be adjusted as I don't think it has ever been done. Would this cause the above mentioned code?

Thanks,
Kevin

sureal1 · 02-24-2004, 09:22 PM

im not to sure about obd-ll but i would guess that you have a defective sensor or it has come unpluged.

silv97cvc · 02-25-2004, 01:00 PM

does anyone know where this sensor is located at?

Thanks,
Kevin

therazor421 · 07-23-2007, 11:37 AM

I Believe it's by the CKP. Unfortunately it's under the harmonic balancer. The harness and wire are located to the right of the valvehead cover. Above the alternator. Check to see if the alternator belt is cutting through the wire insulation. That's what happened to mine. I just needed to solder the wires back and it runs fine now. Also check the timing. Best...

HondatechAV6 · 07-25-2007, 09:52 AM

i agree with therazor421. the only times i've had this code is after someone has done a timing belt and left the wire unsecured at the lower timing cover.
it is possible the sensor is bad, the connector is loose or rodent damage is present.
the connector is here:

if you haven't done your timing belt now is the time(i'm assuming this is your 97 civic ex?)