Our database does not have any information on your vehicle so I do not have the wiring schematics and the system used.
There are 3 possibilities.
1. Faulty ignition coi for rpm circuit. If equipped. If it is from the PCM, then you could have a fault there.
2. Wiring fault. A wire could be loose and not providing the signal to the gauge.
3. Faulty gauge. I have seen many such cases for othere makes whereby the gauge might come alive again later. If so, a circuit in the instrument cluster for the rpm is bad due to cracked solders. It could also be due to a loose wire connector behind the instrument cluster.
Saturday, July 14th, 2012 AT 2:01 PM