CKF TRICK UPDATE - > CLICK HERE
This article describes how to trick a U.S. OBD2a or OBD2b ecu into
thinking a CKF sensor is wired in when there actually is no CKF sensor
on the engine.
What is the CKF sensor?
The CKF is the Crank Fluctuation Sensor.
On all 96+ (OBD2) Honda/Acura vehicles, this sensor is integrated onto the oil
(CKF images soon)
This trick is mainly aimed to help hybriders
who are using a U.S. OBD2a/b ecu in their
vehicle, but their motors are lacking a CKF
For example, running an JDM OBD2 engine
in a US 96+ vehicle but retaining the US OBD2
ecu. For those that don't know, when using
a US OBD2 ecu and the
CKF sensor is not wired in, the engine runs
like total crap. This trick basically taps
the CKF into the CKP signal.
This wire trick will save you
money (around $300) and headaches!
There have been reported CEL CODE 9 (CYP) issues once the CKF bypass trick has been performed on certain OBD2 civic/integra vehicles.
There is a fix for this problem explained in RED within the procedures below.