I just recently purchased a MPEM for my 05 rxp thinking that was my problem. And come to find out its my ECU. SO now I am looking for a good ecu stock or aftermarket I dont care just as long as it works. I would take $300 for the MPEM and I paid $400 for it but I would really like to trade it for a ECU. Let me know something someone help me out. Thanks Alot Michael 256-762-5481