99 996c2 issues with instrument cluster

[demarconstruction]

After install of rebuilt engine, tach, odometer , speedo not working all else works fine , guessing we missed installing some wiring to tranny ? Any suggestions Thanks

[Richard Hamilton]

Speedo signal comes from the ABS controller, and tachometer from the DME, so I think you are chasing two issues. Have you unplugged the instrument cluster? You have to be careful to insert the plugs and lock the levers properly.

[demarconstruction]

Thanks Richard for the response. I never touched the instrument cluster but will check it thanks

[binger]

Hi,

Can you please give us a complete history of the car. IE: why did you R&R the motor, manual or trip trans, did you do any other work to this car, did you pull the trans with the motor? Or did you just R&R the motor? Did you use the sensors from the original motor or did you use what came with the rebuild or replace all with new sensors. Do you have a Durametric scanner? If so can you please look to see if there are any pending codes?

[demarconstruction]

Hi motor was scored and damaged engine was completely rebuilt and tranny also dropped and removed some sensors were replaced I believe not sure as to which ones tranny is a manual scanner doesn't show any DTC's thank you very much

[binger]

If everything was working before you R&R the motor and trans I would back track your steps. I would unplug and inspect each sensor starting with the trans and look for bent pins, pins that have been pushed back in the connector or missing pins. If all looks ok then you are going to have to test each sensor to prove them out. Also carefully look for damaged wiring or sensors that might have been plugged in wrong. Its going to take some time but you will find it. Diagnostics is about being patient. Please keep us up to date.

Edited August 13, 2013 by binger

[demarconstruction]

Don't have any knowledge on sensors or their specific locations is there a schematic or layout I can try to find . Thank you again for your valuable response

[binger]

I forgot to mention to first look at all your fuses! If all are good then back track to what you unplugged and then replugged.

[demarconstruction]

Yes all good :( would've been an easy remedy

[demarconstruction]

Yes all good :( would've been an easy remedy

[binger]

unplug and inspect each connector one by one starting with the trans and look for bent pins, pins that have been pushed back in the connector or missing pins.