Hey. To get rid of an annoying CEL code for the CKF sensor (h22a doesn't have one), I was told running from the CYP sensor would cover that off.

Has anyone had experience running a wire to take care of a code inside the ecu? Any tips/tricks or things I need to be aware of?

 

Proper ECU or one that doesn't look for the CKF

 

Great suggestion

It doesn't affect performance, it's just annoying. I'm not changing my fully tuned ecu because of a CEL


[Modified by satan_srv, 12:30 PM 12/4/2002]

 

Find what is the output for the sensor and match it to the ecu. Example if it's operational output is .5vdc then supply that voltage to the ecu's imput for that sensor and the ecu will think it is working. Just a crazy idea I don't know if it would work. You can also retrofit the engine with the sensor. I don't know what the CKF does but if you put it in the OEM location for it's intended engine, the output may be similar enough for the ecu to be fooled. HTH

 

The CKF is just an OBDII thing put on the B18C1, is used to determine which cylinder misfired, as such it doesn't do anything until there is a misfire. So I could run a wire from anything producing a similar output then?

But I figure I can just run a wire from the pin to pin inside the ecu, since they are all right there

 

Well the best thing you can do is figure out how exactly does it work to figure out how to fool the ecu. Problem is if the ECU does a sensor check and the output of the sensor is wrong (like it's disconnected) then you'll get a CEL. You need to find out if the output of that sensor is a voltage when there is a misfire/knock or if it's ground. Also findo out if the ecu checks for sensors when you start up the car or only when the sensor fails (this would be the easy situation). You may be able to find out by removing a sensor that only works in a specific condition and see if the ecu gives a code before the condition occures. Can't think of anything specific. Check the manual if you have one for more info. Then you can start thinking about fooling the ECU.

 

I have an h22a so the sensor doesn't exist. I know as soon as the car comes on it checks cause the cel comes right on. I am trying to locate a helms locally!

 

I think some of the late model H-series did in fact come with the CKF sensor. I believe its located on the oil pump? So couldnt you just swap that piece out with a CKF sensor version? Now that I tihnk about it, I am pretty positive my Buddies USDM 2000 H22 has that sensor.

 

Actually I believe you are referring to the CKP sensor, Crankshaft Position sensor. The H22a has always had it, but in 1996 it moved from the Distributor down near the crank pulley, which is what I believe you are referring to.

The GS-R has both, CKP in the distributor, CKF at the crank. I suppose I could get another sensor, but that would be a pain in the ***.

 

Really so the 99-2000 Si distributor doesn't have a CKP in it??? I know about the CKFS on the oil pump housing and I have rewired a 99-2000 Si distributor with an OBD1 plug for my friend's LSVTEC... It was a 94 Integra so the stock CKP would have remained in the distributor.... I don't know this for sure but everything i have worked with has led me to believe that on an OBD car you have a TDC, CKP, CYP, and a CKFS on the oil pump housing... Correct me if I'm wrong but this is just what I have come to think... If i'm wrong please explain, cuz it won't make sense to me otherwise... Peace

 

H22a = prelude

There is more to this world than the B-series