Keep blowing MPI fuse..
 

Well recently my car started blowing the MPI fuse.. It happens about every 2-3 days. Also one thing I noticed which I think might be contributing to it is one of my injectors (1600's) Keeps getting stuck closed every once in awhile while I'm cruising on the freeway and it'll misfire on and off for a bit. But then it will clear up and be fine again. Would this cause the MPI fuse to blow? Or would it most likely be a wire shorting out? The fuse started blowing more often as the misfiring kept getting worse. I'll more then likely have the injectors sent out to get cleaned and flow tested.

Re: Keep blowing MPI fuse..
 

this happened to me and it was a wire grounding out. I went through abot $20 in fuses before i found where it was grounding. With me it was a wire grounding out from my wire tuck.

Re: Keep blowing MPI fuse..
 

That's what I figured.. Plus I just re-did my whole wiring harness this winter. I guess while I pull the tranny I'll have to pull the harness as well.

Re: Keep blowing MPI fuse..
 

ya it sounds like a wire somewhere that either has a small bare spot or an open end that once in awhile will move with the car and short out.

Re: Keep blowing MPI fuse..
 

Wire shorted to ground or the problem I had with my Galant was the MFI relay was bad/shorting to the case

Re: Keep blowing MPI fuse..
 

Last time i saw this it was a grounding issue also.

Re: Keep blowing MPI fuse..
 

I have a spare relay that you could borrow for awhile, just to see if that is the cause.