QUOTE(76-914 @ Mar 3 2013, 10:26 AM)
Wow. That's a lot of
going on at once Tommy. I'd go with fuel pressure. CHT sender or MPS unit. Did this all begin at once or have the problems accumulated? Has it ever been "tuned" correctly? i.e. the A/F ratio, too?
What's 'CHT' short for?
I don't know if it's been accumulating. I bought the car in December. It seemed to be underpowered compared to my 1.8, although my 1.8 is now a 2.2 with larger pistons and jugs. But I came to find out the compression was very low. Putting it on a tow truck and putting it in 1st gear, it still rolled back as if it wasn't in gear. Then more loss of power with the with the power not being constant while driving. Slight jerking hiccups turned into full on conniptions to the point that I had to ride the accelerator just to keep the car on, which now doesn't even work. If I can start it at all.
From my basic knowledge, I would assume it's misfiring from the timing being off. I've never adjusted the timing before, though I have seen it doen when Phil Sparta adjusted it on my other car. But I didn't really understand how it works or what to do exactly.
I don't think it's the fuel filter. Or the wire harness. The same symptoms of random loss of power will occur, but not sudden jerking.
Ironically, the same thing just happened to my VW GLI VR6. But it was the coil (mine has 6 coils). It's happened before. That car vibrates a bit more than jerks, but obviously because it's a different technical engine than it's 40 year old flat 4 pappy.
I've had it at my friend's mechanic shop for the last week. He still hasn't touched it yet, though he's worked on other cars that came in after. Which kind of pisses me off because I told him I wanted to drive it to the Amelia Island Concours d'Elegance this past weekend. If it's misfiring, it's a simple and short repair. And after a week, I would've though he would've at least looked at it by now. And now there's also the compression problem.