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View Full Version : Sr20 running really rich and bad

theianmcdougall
08-24-2008, 10:28 AM
i have a redtop sr20det swapped into a s13
i did the swap not too long ago
and its running really bad
its running super rich (lots of black smoke and backfiring)
it also is hesitating and cutting if i try to get on it and around 3 grand when driving it

im pretty sure the MAF is good
so im trying to find out what else it could be
fcdrifter20
08-24-2008, 08:50 PM
u need an safc. and tune. had the same problem with mine
0wn3r
08-24-2008, 09:03 PM
u need an safc. and tune. had the same problem with mine

please explain... why would you need an safc?
FusionR240sx
08-24-2008, 10:39 PM
what mods do you have?
why would you mod a car and not have it tuned before you drive it?
cotbu
08-25-2008, 03:34 AM
Boost Leak!
rb25_s13*CHUKI
08-25-2008, 05:51 AM
Maf/boost leaks eveywhere! Ah!
0wn3r
08-25-2008, 07:49 AM
why would you mod a car and not have it tuned before you drive it?

wtf is up with you people? who said he has any mods?
theianmcdougall
08-25-2008, 08:29 AM
the only mods i have are a FMIC and a walbro 225 fuel pump
so it shouldnt really need a tune cus im still running the stock turbo and stock injectors

and im pretty sure its not a boost leak
duffman1278
08-25-2008, 08:41 AM
How do you 100% know its not your MAF at fault, and/or boost leaks? Because even visually, you can't spot some boost leaks. Make a DIY boost leak tester, their cheap and they'll help you find any.

Also, the MAF's are pretty sensitive so how do you know that it works perfect?
0wn3r
08-25-2008, 10:00 AM
How do you 100% know its not your MAF at fault, and/or boost leaks? Because even visually, you can't spot some boost leaks. Make a DIY boost leak tester, their cheap and they'll help you find any.

Also, the MAF's are pretty sensitive so how do you know that it works perfect?

TY.

make sure it's the right MAF, that it's working..and if you have a boost gauge, post your numbers.