Originally Posted by jdmteg18

limp mode wont do anything to an engine,its there to PREVENT damage to an engine.Limp mode is the computers way of running in "safe" mode,it basically sees a problem (hence a faulty sensor,mis-fire leading to a thrown code,faulty wiring,etc) and prevents the motor from reving past 3500. Like said,if your computer is running in limp mode,your going to be throwing a code. Find out what code your throwing and we can go from there. if you need to know how to check and get the code,PM me.