82 280ZX Turbo. My cousin had the car and the turbo started blowing oil out the exhaust but it ran like a bat out of hell. He parked it in Febuary. I bought the car 2 weeks ago. I put a brand new turbo on it and the when the damn thing hits 1 lb. of boost it just falls on its face and starts backfiring. I have done everything. If someone could help me please do. i would really appreciate it.

 

that sounds definatly fuel related....
and what do you mean youve done everything...if you tell us what you have done so far we have a better idea on what to suggest...

 

ok here goes. plugs, wires, cap, rotor, tried plug gaps starting at 50, 40, 35, 30, 25, now back on 30. fuel pump, filter, took off tubing going to and from the turbo to make sure no cracks or leaks, even put a couple of new clamps on. replaced all the vacuum lines. turned the fuel damper under the car up a little bit...

 

fuel pressure regulator.. or make sure all your " new " turbo vacume hoses are on the right way..1 psi of pressure ? pcv valve might me cloged ? or EGR valve might be cloged...

 

try the injector seals, they may be the leak, vaccum turns to boost leak

 

sounds very similar to bleaches problem. i 2nd what shady said.

 

^^^ 3rd.

Deffinate injector prob. If you pull the spark plugs & look @ the tips, you should be able to see which cylinder is having a problem.

 

yeah a little oil did get in the intake tube leading to the throttle chamer. so the pcv could be stopped up. well the reason i dont think its injector seals is that the car ran perfect before that turbo started blowing oil. Then when i got the new turbo on it. it wouldnt crank for **** till i started running brake cleaner through it then it finally crank.

 

all the plugs look the same. they even look a little lean.

 

sprayed penetrating oil on ECU plugs and cleaned PCV. still does the same thing. what could be wrong with this car. it has got to be something simple! its driving me crazy

 

it doesnt have to be very simple, and dont throw out the injector idea because it ran good 3 months ago or w.e. some cars ran great a day ago and then something with the injectors can go wrong...hey....all you can do is go downt eh list of all suspected problems eliminating them one by one....or take the fast way out and drop it at a shop that KNOWS Z's.....but thats last resort....

 

re-tighten each hose clamp on all the rubber hoses on top of the intake manifold. Just a little though, you don't want to strip the clamp.

replace those injector o-rings that go where they seal against the intake manifold.

 

Are you sure you got all the manifold bolts tightened down? Make sure all the bolts are tight and make sure anything bolted to the intake manifold (and could be a possible source of a leak) is nice and tight. Triple check that all hoses, including the intake hoses to and from the turbo in properly in place and tightened securely.

 

ok i think its in the spark. I got out there tonight and ran the car some. When you rev it up the lights get dimmer. Arent they suppose to get brighter or at least stay the same. I think its losing power somehow and not letting the dizzy work like its suppose to. What about that? any suggestions

 

It could be the alternator belt slipping when you rev the engine. That or it's possible the alternator isnt charging properly (from either a faulty alternator or just a bad connection somewhere). That would only explain the lighting issue though and wouldn't explain the boost problem.

Have you checked your timing? Whats it at?

 

thats why that bastard is screaming. i checked the fan belt but didn't think about checking the alternator belt. Well if it isn't charging then the electronic dizzy won't work. right?

 

no i haven't checked my timing.

 

No, the distributor will work as long as your battery is putting out at least 12v to charge the coil.

 

well ladies and gentlemen i finally figured it out. it was the coil. auto zone gave me the wrong damn one. now she runs like a champ. i want to thank everybody for the help they have gave me.

 

HAHA...no lie.....well thats good, man whoever first said its a fuel problem is a retard.....o, wait....

 

lol. yeah no **** it was that ragedy *** coil from auto zone. hell i have been driving around in it all evening and very much enjoying it. now i move on to fix exhaust leaks and get that boost between 10 and 15. hehe. i got a mustang cobra convertible too. there is just something about that little turbo car that i love.

 

What coil did you finally settle with to make it work...I know the old school big, square, yellow, Accel super coil works very well on my N/A, so well in fact it burnt my coil wire and I couldn't start my car....now I have 7mm wires all around.

 

i ordered one from O'Reily auto parts. i burnt me a mustangs *** up tonight by a car and a half. lol...that was funny as hell. it aint pushing but 6 lbs of boost right now. that **** is fisen to change