2drcivic

Hi All,

So I just got a swap completed. Car is a 1999 civic si, blew the motor and replaced it with a OBD2 96-00 D15B 3 Stage Vtec ( Yes I got douped into buying the 3 stage, I didn't know this was some next vtec system until the shop was puting it in and noticed the 2 solenoids).

Anyways the swap is done, he says the car is running pretty good but he's got a CEL code:

Code is P1337: No signal in the Crankshaft Speed Fluctuation (CKF) sensor circuit

Now could this be a wiring issue stemming from the fact that its possible that the engine is a OBD2A where as the car is a OBD2B?? I'm not sure if thats the case as I only know the engine is anywhere from a 96-00. I just have a feeling its a wiring issue rather than actual sensor.

Your help is appreciated, thank yoU!

2drcivic

forgot to add that my speedo is not functioning either, possibly related?

kaval

Did you plug in the Vehicle Speed Sensor (speedo problem)?
I assume you're using the D16Y8 ECU for now? I can't recall if OBD2 JDM motors have a crank sensor...someone?
If your motor doesn't have one and you're using the D16Y8 ECU, that's likely your problem. Switch to the P28 and OBD1 converion harness and I think it should solve your problem...otherwise there is a wire fix you can do found on ffsquad's website.

2drcivic

Hey man, thanks I think I found it.

.:FFS TechNet : CKF Bypass Trick :.

I believe the JDM motors dont have a CKF: Crank Fluctuation Sensor.... and yes I am using the stock ECU FOR NOW.....

2drcivic

Speedo is plugged in, he's gonna disconnect and clean it just in case....