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View Full Version : im having a fuel cut problem in my sr20


theianmcdougall
08-13-2008, 02:37 PM
1990 s13
red top sr20det

I just finished the swap and got it running. Most everything seems to be working fine. But when i try to give it some gas or try and slowly rev it past 2500-3000 rpm i get really bad fuel cut and it bogs down. Im thinkin its either my injectors are bad or my maf. But im not sure so help me out

thanks

singlecamslam
08-13-2008, 02:40 PM
Sounds like the maf.

Dutchmalmiss
08-13-2008, 02:43 PM
low rpm cutoff usually is because of MAF or timing

high rpm cutoff usually is because of fuel pump

theianmcdougall
08-13-2008, 02:50 PM
yea thats what i thought
how do i go about fixing that
or maybe it wasn't wiried correctly

and i doubt ill have high rpm cutoff because i have installed a better walbro fuel pump

theianmcdougall
08-13-2008, 06:01 PM
i no longer think its the maf

we looked at it and the bov was siezed up

and i fixed that to were it acutally blows off now but it still is not running right and im still getting fuel cut

timing or the spark plugs not gapped right maybe?
need some help

MyLevinGTZ
08-13-2008, 07:06 PM
MAF, it's the MAF. if it cuts at 3k, it's the MAF.

if you want to try soemthing else in the mean time, make sure there aren't any boost leaks.