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GAME ON!!
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150 Posts
Discussion Starter · #1 ·
Can any one help
fmic
decat
3.75"cat back
fillter
fuel pump
fuel presure reg

but wont run right
help!!!!!!
 

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Belgium/Netherlands Area Rep
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2,060 Posts
did you perform the setup of the safc ? (afm, in out, # cylinders, ...)
if this isnt setup right it will never run right
afterwards you can map it with the aid of a wideband a/f ratio meter fe
 

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Administrator
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25,973 Posts
yes i did set it up but now pop and farts at 4500-5000but then goes like a rocket ship??????
coil packs mate lol

if you drive it slower does it pull through that rev range cleanly?

sounds like it may still be overfuelling at that point
 

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Registered
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8,411 Posts
That´s an ignition problem then. Ususally coilpacks braking down. But first check if your overfueling massively at that point as this might cause the issue.
 

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GAME ON!!
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150 Posts
Discussion Starter · #7 ·
just to let you all know its all sorted it was the plug gaps!!!!! never ask someone else to check them!!!!
 

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Minnie mouse is my b***h
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2,733 Posts
safc 2 only controls the air flow and throttle points & reads teh sensors like Knock,correction etc etc.

if you alter the air flow the stock ECU has to try and adjust the timing of the ignition & fueling, which its just not upto the job.

it will only solve half the problems as for now your skyline will be running rich on fuel, and you wont be getting a very good MPG even with a bigger fuel pump and FPR installed the ECU will still tryand fight it and correct it.

your coils will be on there way out (due to having to try and give more power to the plugs due to more cold air coming in) its more the fact you need a proper Remap!
 
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