obd1 Ls motor wont rev past 3500rpm
 

i was driving and all of a sudden i felt a power loss (limp mode) and noticed my car would not go past 3500rpm.running a p75 ecu...anybody got any suggestions..

Re: obd1 Ls motor wont rev past 3500rpm
 

had an issue like this once with an OBD-2a GSR. Turned out to be wiring in the distributor harness. (essentially, the dizzy can't advance timing passed 3500 with the wiring screwed up, so it acts like a rev limit)

one or two of the wires that went into the plug on the dizzy had come loose.