SR20 HELP! (video included) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Ambush · 09-30-2009, 08:04 PM

i have NO idea what is wrong with it.
at first i thought it was the ecu. i tryed another ECU (red top) everything is still the same.

in the video, the popping sounds and stumbling sounds are backfires.
the car struggles to go pass 3000 RPM.
my turbo spools up to quick, and it just stays at boost.
its like im only getting 50HP.

http://www.youtube.com/watch?v=QvQFe...lepage#&fmt=18

http://www.youtube.com/watch?v=B9zM_...channel&fmt=18

chrissyPOO · 09-30-2009, 08:10 PM

have you tried swapping out your MAFS for a known working one? maybe your car is in limp mode and dumping lots of gas

charlie321 · 09-30-2009, 08:11 PM

check your MAF

SleepR 240sx · 09-30-2009, 10:23 PM

MAF...check ECU for codes...vaccuum leak

s13silvia123 · 09-30-2009, 10:50 PM

boost leak check for that

Ambush · 10-01-2009, 12:14 AM

i've changed the MAF. tryed a red top & black top ECU.

SleepR 240sx · 10-01-2009, 12:06 PM

vaccuum leak will cause you to run pig rich and give you major trouble revving....check all your lines...10 bucks says you've got a leak somewhere...check IC piping/IC...everything...it's there somewhere

Ambush · 10-01-2009, 09:26 PM

bump

ughhhhh -__-

SleepR 240sx · 10-02-2009, 12:15 AM

Quote:

bump

ughhhhh -__-

? What else do you want. We've given you a list of the most likely causes. Go check over every square centimeter if you have to.

KiLLeR2001 · 10-02-2009, 12:24 AM

Hows your CAS timing? Too retarded will cause the turbo to spool up quick and your car goes nowhere. Happened with my friends redtop, we turned the CAS almost all the way clockwise and it ran like a champ after that. But it sounds like a combination of that + vacuum leak somewhere.

09-30-2009, 08:04 PM	#1
Ambush Join Date: Sep 2009 Location: SoCal Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	SR20 HELP! (video included) i have NO idea what is wrong with it. at first i thought it was the ecu. i tryed another ECU (red top) everything is still the same. in the video, the popping sounds and stumbling sounds are backfires. the car struggles to go pass 3000 RPM. my turbo spools up to quick, and it just stays at boost. its like im only getting 50HP. http://www.youtube.com/watch?v=QvQFe...lepage#&fmt=18 http://www.youtube.com/watch?v=B9zM_...channel&fmt=18

09-30-2009, 08:10 PM	#2
chrissyPOO Leaky Injector Join Date: Jan 2008 Location: anaheim, CA, US Age: 33 Posts: 58 Trader Rating: (4) Feedback Score: 4 reviews	have you tried swapping out your MAFS for a known working one? maybe your car is in limp mode and dumping lots of gas __________________

09-30-2009, 08:11 PM	#3
charlie321 Zilvia Addict Join Date: Dec 2006 Location: Long Beach, CA Age: 30 Posts: 989 Trader Rating: (4) Feedback Score: 4 reviews	check your MAF __________________

09-30-2009, 10:50 PM	#5
s13silvia123 Post Whore! Join Date: May 2006 Location: where waldo is Age: 39 Posts: 3,256 Trader Rating: (16) Feedback Score: 16 reviews	boost leak check for that __________________ 18g and 20g turbo users click on me http://zilvia.net/f/tech-talk/261219-18g-20g-turbo-users.html

10-02-2009, 12:24 AM	#10
KiLLeR2001 Post Whore! Join Date: Jun 2007 Location: オーランドフロリダ Posts: 7,955 Trader Rating: (46) Feedback Score: 46 reviews	Hows your CAS timing? Too retarded will cause the turbo to spool up quick and your car goes nowhere. Happened with my friends redtop, we turned the CAS almost all the way clockwise and it ran like a champ after that. But it sounds like a combination of that + vacuum leak somewhere. __________________

10-01-2009, 12:14 AM	#6
Ambush Join Date: Sep 2009 Location: SoCal Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	i've changed the MAF. tryed a red top & black top ECU.

10-01-2009, 09:26 PM	#8
Ambush Join Date: Sep 2009 Location: SoCal Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	bump ughhhhh -__-

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