1989 Nissan 240SX Accelration

1989 NISSAN 240SX
122,000 MILES • 4 CYL • 2WD • MANUAL
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TMORAN28
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ok here is the problem. I bought a 240 sx on may 22 2008. The car was running rough and has a ingen tech cold air intake kit. I thought that the problem was a tune up but i replaced plugs,wires,fuel filter,fuel pump, fuel sending unit, rotor button and cap,oil changed and belts. Not this does not happen all the time but if i punch it it wants to stall for a second them produce what i think is full power but not sure. Now i should probly metioned that befor i bought the car it had and still has a NOS kit but it is not hooked up. I dont know if the car was sprayed or not. The rotor cap timming has been advanced when i try to set the timming back is sputters even worse. Compression check if fine, I feel it could be injectors,or mass air flow sensor. PLEASE HELP
May 29, 2008 at 10:01 PM
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STRAILER
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Have you scanned the ecm for codes?
May 30, 2008 at 11:52 AM
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TMORAN28
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Yes i have scanned the ecu for cades and it said that the system is ok. I am a mechanic and this car has boggled my mind. Mass air flow sensor is working checked it today after i got your email. the only thing that i have not done is put a noid light on the injectors. At this point i am thing that A. The timming chain is worn and a little out of time wich is why the timming was advanced in the first place. B. dead cylinder. Thank you for you time.
May 30, 2008 at 10:32 PM
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STRAILER
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Is it a dead cylinder miss fire? Running on three?
May 31, 2008 at 6:55 PM
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TMORAN28
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If a cylinder is dead would it have a good compression check? And if so would it be cheaper to buy a new/used motor or total overhaul.all i know is i want the thing to run right and it is giving me a huge headache and a pain in my butt. Thanks for you time.



Thomas.
Jun 2, 2008 at 6:00 PM
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STRAILER
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if the cylinder is dead the compression would be below 110 psi. If ok, have you tried a new injector in the dead hole?
Jun 4, 2008 at 6:02 PM
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TMORAN28
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OK i went to replace the fuel pressure regulator and noitced that when i pulled on of the injecters the injector cover that goes into the motor was busted all around , ordered new injector, replaced, problem fixed and running like a scalded dog
Jun 4, 2008 at 11:44 PM
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TMORAN28
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also just wanted to thank you for all your time. May god bless you and everyone that work on this fourm
Jun 4, 2008 at 11:46 PM
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STRAILER
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No problem, thats what we do.. :-)
Jun 5, 2008 at 10:50 AM