sr stalling and running lean

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Russo
Posts: 7
Joined: Sat Jul 24, 2010 8:05 pm
Car: 95 240sx Zenki

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Hey guys I'm trying to finish up my first sr20 swap in my s14. It's a s13 blacktop sr. The car runs fine when it's cold but when it warms up it starts running very lean 18:1+ it idles fine until you give it gas. Even a short blip of the throttle will make it fall on it's face.

It then proceeds to shake violently until it finally dies. I'm honestly stumped with this one I've cleaned the iacv, replaced the maf replaced the cts and honestly don't know where to go from here.

I suppose it could be a bad fpr or something fuel related which would make sense as why I'm running lean. I also put in a walboro 255 and a 300zx tt fuel filter

Any insight from you guys would be great. I really appreciate it


Russo
Posts: 7
Joined: Sat Jul 24, 2010 8:05 pm
Car: 95 240sx Zenki

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bump, nobody?

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the converted
Posts: 2767
Joined: Wed Feb 21, 2007 7:14 am
Car: '99 BMW M3 6.0
'88 Toyota Celica All-Trac (somewhere in Cali)
'20 Toyota Tacoma
Location: Boston

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Backward fuel lines? In at the back out at the front. Vac leaks? Check the TPS and make sure the voltage is 0.45v to 0.55v closed.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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What mafs you using?

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tom550
Posts: 64
Joined: Tue Feb 09, 2010 6:55 pm
Car: 240sx 1990

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check for vac leaks. check your maf to see if its working ok.


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