[DML] RE: RPM Relay/ECM/Pulse generator Diagnostics

[doctorDHD@xxxxxxx]

Does the engine run when you use a jumper on the RPM  relay socket?
 
If so with the engine running attach a automotive  analyzer / tachometer to 
the WS wire going to the RPM really socket and see if  you have the proper tach 
signal there.
 
If you do, then it may be that the RPM relay is  bad.
 
If not then find out where the break in the circuit  is.
 
You DO have a schematic right?
 
D² & 6530
 
Dave  Delman




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