Lizard928

Its a track car,

tear out the facotry wiring and fuel injection system and go with a painless wiring system with some form of standalone EFI.

That is my vote :P

Or hook up a sharktuner with wideband to see if you can find the problem.

Tom. M

You don't know how close I am to that Colin ...

I did get back to it yesterday and swapped out the other coil (just because)..it fired up but still appears to be missing..definitely not 4 cyl mode..but can maybe be one or two cylinders... I am leaning towards the wires at this point..will test that out this week and check the distributor caps/rotors as well as all the other ignition related side of things...then it will be on to the fuel side...

heinrich

Have you checked the second stages?

Lizard928

Hey Tom,

I have no real issues at all with the wiring in my car,

But at the same time I am seriously considering it.

I would be removing the center console and putting in a custom formed piece of aluminum with toggle switches and fuses right there. Nice and simple with very little wiring in the car.

Tom. M

already been swapped with known working unit..no change

Tom. M

Ken Osage did this in one of his track cars..simple switches for all the basic necessities..since mine is track with minimal street, I will go that route eventually...you should see the mass of wires Ken pulled out of his...just like Mark A....lots of crap and weight.

Probably grab an aftermarket fuse/relay block to replace the old style 82 fuse panel in mine..

John Speake

Hi Tom,
I have come across a couple of 928s recently that misbehaved when hot. It tuned out to be the flywheel speed sensor that was faulty.

Tom. M

Hmm.....Thanks John....I hadn't thought of that one..I will add it to the check list..

Tom. M

After reading all the discussion on Stan's GT and possible MAF issues I figured I would give that a shot before digging deeper. Went back to the shop today and brought the MAF from my GT (recently rebuilt). I put it in the car and it seemed to run way better. Shut it off and restarted several times and seemed to run better overall....Let it run for a while to warm up..(till rad fan kicked on) and it ran good.
I will be sending the MAF out to get rebuilt (can't hurt) and for now the car seems to run better..time will tell if that was the issue all along...