Cant get tacho to work

**hero** · 04-07-2006 05:04 PM

I cant seem to get the tacho to work..

Is there anything on the OBD2B ECU - "A" Plug that works with the ICM or tacho? Im looknig at the table.. but there doesnt seem ot be any

**chunky** · 04-07-2006 05:09 PM

did u install it urself ?

**CRXer** · 04-07-2006 06:14 PM

ICM is controlled by the ecu,so ecu already knows what ICM is doing,it doesnt need a return signal.

What u need to find is a seperate wire which leads off the ICM (usually blue) and tracks back to the gauge assembly.

**hero** · 05-07-2006 09:39 AM

Originally Posted by CRXer

ICM is controlled by the ecu,so ecu already knows what ICM is doing,it doesnt need a return signal.

What u need to find is a seperate wire which leads off the ICM (usually blue) and tracks back to the gauge assembly.

thanks CRXer...

Ill try that tonite and see how it goes..

Ill consolidate this thread with blitz's thread as we are talking about the same car and he knows more about it then i do..

**ECU-MAN** · 05-07-2006 11:27 PM

Originally Posted by hero

I cant seem to get the tacho to work..

Is there anything on the OBD2B ECU - "A" Plug that works with the ICM or tacho? Im looknig at the table.. but there doesnt seem ot be any

ICM on OBDIIb is B13 pin. on a OBDIIb to OBDI convertion harness A19 ( NEP ) and B13 ( ICM ) are joined together.