Well I swapped a f22b1 into my car it was staring up with the pt6 ecu and my buddy chipped a p06 for me. The p06 wouldn't start the car only the pt6, well I put the chipped p06 back in the car to see if it would start and it did but ran rough and crappy. Lastnight after putting the axle in I was gonna see how it ran bu that ended fast cause all of my light was dim and my rpm gauge wouldn't read for crap no matter how much i gave it gas! Today the car doesn't start up at all I got gas and still nothing Im thinking it could be a main relay! Any help will do.

 

the only thing i can think of is your buddy either gave you the wrong ecu for your year vehicle... or the "chipped" portion was not done correctly and jacked stuff up.. not much help im sorry