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90 Indy lost RPM temp and volts on dash

Posted: Tue May 24, 2016 4:11 pm
by Johnles
Hi guys im lost on this one got the car not running got it running and was driving it on the second day then I noticed I lost rpms volts temperature and speedo never work and it's digital trun it over and it all lights up like it should any help would be great

Re: 90 Indy lost RPM temp and volts on dash

Posted: Sat May 28, 2016 3:23 am
by Cliff8928
Did you change anything with the ECM? That information is sent to the cluster via serial data from the ECM.

Re: 90 Indy lost RPM temp and volts on dash

Posted: Sat May 28, 2016 2:05 pm
by Johnles
No I didn't I have a spare ecm I'm going to swap. also it sat for a bout 7 years was on blocks so no mice got to it. I hope to other ecm works. I post if it works or not