1987 Turbo ii help!!!
#1
UpNorthTurbo
Thread Starter
1987 Turbo ii help!!!
So i just bought a 1987 turbo 2 rx7. Its a hard starter, but thats nothing new to me, i had a previous rx7 that would sometimes give me a headache to start it. but this one it will rev all the way up not in gear, but in gear at around 5000 rpm it spits and sputters.... Heres a link to a video of it doing it and a video of a walkaround and revving it right up with no problem....
and for a background, when i picked it up, it would idle like ****, up and down non stop, but i drove it two hours home and now it purrs like a kitten.... it also hadf to be push started when i got it, and now it starts right up... all solved simply by driving it two hours home....
the videos might not be watchable for a little while since i just uploaded them....
and for a background, when i picked it up, it would idle like ****, up and down non stop, but i drove it two hours home and now it purrs like a kitten.... it also hadf to be push started when i got it, and now it starts right up... all solved simply by driving it two hours home....
the videos might not be watchable for a little while since i just uploaded them....
#3
UpNorthTurbo
Thread Starter
i was wondering if that is what it does when theres no exhaust, i heard the fuel cut will kick in because of raised boost pressure.... but i dunno.... wires look relatively new, i have to pull the plugs though
#4
yeah check your plugs. make sure you have 2 leading plugs and 2 trailing plugs. they have 2 different heat ranges. if theyre a light brown/coffee thats ok, if theyre white you have a coolant leak, if theyre black your running rich/bad timing. make sure your coils arent cracked.
and when you say no exhaust...like from the downpipe there is nothing?
and when you say no exhaust...like from the downpipe there is nothing?
#5
UpNorthTurbo
Thread Starter
yeah there is nothing after the downpipe, and in first gear it will rev all the way out, my buddy wanted to go for a ride and check it out, and first gear it would pull hard all the way up the revs to redline
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#9
there is 2 catalytic converters...one that is part of the downpipe and the other has your split air pipe on it. check your plugs, check your coils and then look towards fuel.
#10
UpNorthTurbo
Thread Starter
no seriously... there is no catalytic converter on my car, just a downpipe, and the rest rotted off and is gone, it must have a test pipe on it or something, but the o2 sensor is on it, but no catalytic converter
#13
premix, for f's sake
iTrader: (6)
I suspect weak pump or clogged fuel filter, and depending on how long the car sat before you picked it up, the injectors could be gummed up/ partially clogged. But start with the generic rules for a "new" used car. Replace fluids, plugs, wires and fuel filter, and in Rx-7 case...check/set tps and timing... and go from there
#14
UpNorthTurbo
Thread Starter
but see my main question that none of that answers is why does it do it in second gear and not in first, or parked? and has anyone ran in to a fuel cut at too much boost? I will check all that undoubtedly, and thanks for the suggestion
#15
Sharp Claws
iTrader: (30)
doesn't look like fuel cut to me, sounds like a secondary injector is cutting out.
try putting the cat on and see if that makes a difference, if it is fuel cut it will prevent it by limiting boost. you shouldn't be running the car with an open downpipe that hard anyways on a stock setup...
try putting the cat on and see if that makes a difference, if it is fuel cut it will prevent it by limiting boost. you shouldn't be running the car with an open downpipe that hard anyways on a stock setup...
#17
F**K THE SYSTEM!!
I would suggest new fuel filter and have injectors sent out for cleaning. ALong with full tune up.
And If you bought a 3" exhaust system with no cat- I would suggest FCD , 720cc secondaries, and a FPR.
And If you bought a 3" exhaust system with no cat- I would suggest FCD , 720cc secondaries, and a FPR.
#18
premix, for f's sake
iTrader: (6)
I also agree with the reference to the open down pipe on stock management/fuel system... especially on a S4 , thats a big NO NO. S4 turbos have tiny ***, not even good enough for stock, wastegates. open up the exhaust from stock even a little bit, boost creep starts. An open turbine outlet is likely allowing boost to jump way outta bounds for the stock computer/fuel system to handle (which will also crop up the same way fuel starvation can. boost wont build up enough in neutral or 1st to cause a cut, but 2nd and up will)
either way, sort it out before you need to start looking for a new engine :O
#19
UpNorthTurbo
Thread Starter
i have a m2 single exit exhaust and a magnaflow cat coming, might be as long as a week... but i'm looking forward to it, i know its not dual, but **** man, what a price difference and its still stainless steel
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