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1989 Nissan 240SX Accelration

Tiny
TMORAN28
  • MEMBER
  • 1989 NISSAN 240SX
  • 4 CYL
  • 2WD
  • MANUAL
  • 122,000 MILES
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
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Thursday, May 29th, 2008 AT 10:01 PM

8 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Have you scanned the ecm for codes?
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Friday, May 30th, 2008 AT 11:52 AM
Tiny
TMORAN28
  • MEMBER
  • 5 POSTS
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.
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Friday, May 30th, 2008 AT 10:32 PM
Tiny
KEN L
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Is it a dead cylinder miss fire? Running on three?
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Saturday, May 31st, 2008 AT 6:55 PM
Tiny
TMORAN28
  • MEMBER
  • 5 POSTS
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.
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Monday, June 2nd, 2008 AT 6:00 PM
Tiny
KEN L
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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?
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Wednesday, June 4th, 2008 AT 6:02 PM
Tiny
TMORAN28
  • MEMBER
  • 5 POSTS
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
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Wednesday, June 4th, 2008 AT 11:44 PM
Tiny
TMORAN28
  • MEMBER
  • 5 POSTS
Also just wanted to thank you for all your time. May god bless you and everyone that work on this fourm
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Wednesday, June 4th, 2008 AT 11:46 PM
Tiny
KEN L
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No problem, thats what we do. :-)
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Thursday, June 5th, 2008 AT 10:50 AM

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