what's up, I been trying to chase this problem and I'm not sure what it could be. the car used to have an obd1 sprocket, obd1 p75, and no CFK,I have put the sensor I have put the OBD2 sprocket, replaced the ecu to obd2 p75 a02 , I'm not sure if I'm missing anything, and I still get the Check engine. btw I have a 97 gsr harness in it. any advice thanks.

 

What code are you getting?

 

P1337

 

P1337 Engine Speed (RPM) Fluctuation Sensor No Signal

 

Well.. double check that the sensor is the correct one for that ECU, and trace the wires to be sure the signal is making it to the right pin. Easiest with two people... Double check that the gap appears appropriate between the sensor and the teeth on the pulley - mounting hardware for it seem to line up and bolt down 'right'?

My JDM (for example) doesn't have the part of the crank pulley with the teeth for the CKF.

 

Yeah everything lines up, it's mounted where it should be, but I'm going to check to see if the sensor is even getting any current or if it's giving out any signal. And I'll update if anything, hopefully the sensor is just bad and not the wiring. Thanks I'll update after I check it

 

I think the pickup is essentially an inductor (coil) wrapped around an iron core so that the teeth on the pulley disrupt the magnetic field and produce an electrical pulse the ECU can detect. I don't know what the resting impedance is, but if you have a decent ohmmeter you should be able to confirm that same (or very close) resistance reading back at the ECU connectors.

Good luck

 

theres a cfk bypass mod somewhere on the net, gl.

 

http://www.ff-squad.com/technet/ckftrick.htm

Here's one.. you can use the signals from the distributor to convince the ECU there's a happy CKF..

FYI