olov
doing something stupid
- Joined
- Aug 11, 2003
- Location
- warrenton, nc 27589
93 940 turbo, lh2.4. have thelostartof fuel chip, was running stock spark. mbc to 12-14psi on 15g. was running fine but random miss/backfire. did a tuneup, plugs, cap, rotor, wires(had one full of corrosion at the cap). reset the computers(via battery disconnect). put in thelostartof spark box, car did not want to rev over 3k, pulled fine under that. so I tossed the stock spark in, same thing.
I can see some black smoke out the tail in boost, I can build 14psi of boost, but the second I pass 4psi it's like the car hits a wall. revs hold at 3k, so it's not the trans slipping. it's building boost(reference in the intake manifold) and I cannot find any visible tears or loose pipes for a boost leak. fpr vaccum line is dry(so it's not leaking), turbo isn't really leaking oil, I'm going to toss in another fuel ecu and see what happens. what else could it be?
I can see some black smoke out the tail in boost, I can build 14psi of boost, but the second I pass 4psi it's like the car hits a wall. revs hold at 3k, so it's not the trans slipping. it's building boost(reference in the intake manifold) and I cannot find any visible tears or loose pipes for a boost leak. fpr vaccum line is dry(so it's not leaking), turbo isn't really leaking oil, I'm going to toss in another fuel ecu and see what happens. what else could it be?