Car running Rich? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

RedTopDrifter01 · 11-18-2009, 12:24 PM

hello, i was woundering if anyone could tell me what would happen or what would the side effects of a car running to rich. i have a skyline gts-t with rb20det mostly stock except greddy front mount intercooler and apexi intake the exhaust is 3inch from the cat back and stock from the turbo. the car seems to back fire alot when stepping on the gas hard but it looses power when i do that dont know why?

4x4le · 11-19-2009, 07:19 PM

Sounds exactly like a boost leak.

Sileighty_85 · 11-19-2009, 07:25 PM

Quote:

Originally Posted by 4x4le

Sounds exactly like a boost leak.

Youp

msglnth

RedTopDrifter01 · 11-20-2009, 12:26 PM

does it have to be a big boost leak if so or can it be little ones too that could cause that problem? i was told also that my spark plugs mite need to be regapped or that my tps is fucking up.

Ceepo · 11-20-2009, 05:07 PM

My car also runs hella rich been trying to figure it out, the car boosts fine, misfires every so often at idle, no power loss and it has back fired once or twice nothing real major... any ideas

1995 s14
redtop sr20det(rebuild new oem)
fmic/piping
hks bov(not recirc)
megan elbow/downpipe
buddy club spec 2 exhaust

i might check all my intercooler couplers and check for leaks but i dont hear or feel any of the side effects from a boost leak...

p.s. sorry for thread jack...

4x4le · 11-20-2009, 06:26 PM

On a pda so cant multi quote. But you^^^ clean your maf.

Quote:

Originally Posted by RedTopDrifter01

does it have to be a big boost leak if so or can it be little ones too that could cause that problem? i was told also that my spark plugs mite need to be regapped or that my tps is fucking up.

It is probably a small one. A big one usually means it wont run. It can be the other things you mentioned (doubtfull on the plugs causing a rich condition) but fix any boost leaks, check your bov by stretching a condom over it while its idling and by slowly increasing engine speed, it shouldnt fill up untill you let off. Also try racing the engine fast, it shouldnt fill up untill you let off.

Go ahead and clean the maf too.

Ceepo · 11-20-2009, 07:20 PM

Thats what i was thinkin i need to go get some maf cleaner... ill let you guys know how it turns out...

fcdrifter20 · 11-20-2009, 08:53 PM

Quote:

Originally Posted by RedTopDrifter01

does it have to be a big boost leak if so or can it be little ones too that could cause that problem? i was told also that my spark plugs mite need to be regapped or that my tps is fucking up.

doesnt have to be a big leak , a little leak will do it too. check ur plugs and then check for leaks. was ur car running fine before, and have u done anything to it recently??

Quote:

Originally Posted by Ceepo

Thats what i was thinkin i need to go get some maf cleaner... ill let you guys know how it turns out...

just use electrical cleaner

4x4le · 11-20-2009, 09:55 PM

The advantage to maf cleaner is it seems to dry quicker than electrical cleaner. This is so the hot wire is less likely to get damaged if you do a quick clean and reinstall. I use maf cleaner and canned air afterwords to dry it quickly. DO NOT USE COMPRESSED AIR from a tank as there might be too much pressure that could damage your wire.

Ceepo · 11-20-2009, 11:48 PM

okay cool thanks for the info car runs awesome i just get the worst gas mileage and i hate it...

11-18-2009, 12:24 PM	#1
RedTopDrifter01 Join Date: Sep 2009 Location: AB, Canada Age: 29 Posts: 26 Trader Rating: (0) Feedback Score: 0 reviews	Car running Rich? hello, i was woundering if anyone could tell me what would happen or what would the side effects of a car running to rich. i have a skyline gts-t with rb20det mostly stock except greddy front mount intercooler and apexi intake the exhaust is 3inch from the cat back and stock from the turbo. the car seems to back fire alot when stepping on the gas hard but it looses power when i do that dont know why?

11-20-2009, 05:07 PM	#5
Ceepo Nissanaholic! Join Date: Jan 2008 Location: Cedar City, Utah Posts: 2,007 Trader Rating: (9) Rides Gallery: Ceepo Feedback Score: 9 reviews	My car also runs hella rich been trying to figure it out, the car boosts fine, misfires every so often at idle, no power loss and it has back fired once or twice nothing real major... any ideas 1995 s14 redtop sr20det(rebuild new oem) fmic/piping hks bov(not recirc) megan elbow/downpipe buddy club spec 2 exhaust i might check all my intercooler couplers and check for leaks but i dont hear or feel any of the side effects from a boost leak... p.s. sorry for thread jack... __________________ TW: http://zilvia.net/f/cars-sale/390459...d9s-coils.html

11-20-2009, 07:20 PM	#7
Ceepo Nissanaholic! Join Date: Jan 2008 Location: Cedar City, Utah Posts: 2,007 Trader Rating: (9) Rides Gallery: Ceepo Feedback Score: 9 reviews	Thats what i was thinkin i need to go get some maf cleaner... ill let you guys know how it turns out... __________________ TW: http://zilvia.net/f/cars-sale/390459...d9s-coils.html

11-20-2009, 11:48 PM	#10
Ceepo Nissanaholic! Join Date: Jan 2008 Location: Cedar City, Utah Posts: 2,007 Trader Rating: (9) Rides Gallery: Ceepo Feedback Score: 9 reviews	okay cool thanks for the info car runs awesome i just get the worst gas mileage and i hate it... __________________ TW: http://zilvia.net/f/cars-sale/390459...d9s-coils.html

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11-19-2009, 07:19 PM	#2
4x4le Zilvia FREAK! Join Date: Nov 2008 Location: Manchester, Tn Posts: 1,253 Trader Rating: (1) Feedback Score: 1 reviews	Sounds exactly like a boost leak.

11-20-2009, 12:26 PM	#4
RedTopDrifter01 Join Date: Sep 2009 Location: AB, Canada Age: 29 Posts: 26 Trader Rating: (0) Feedback Score: 0 reviews	does it have to be a big boost leak if so or can it be little ones too that could cause that problem? i was told also that my spark plugs mite need to be regapped or that my tps is fucking up.

11-20-2009, 09:55 PM	#9
4x4le Zilvia FREAK! Join Date: Nov 2008 Location: Manchester, Tn Posts: 1,253 Trader Rating: (1) Feedback Score: 1 reviews	The advantage to maf cleaner is it seems to dry quicker than electrical cleaner. This is so the hot wire is less likely to get damaged if you do a quick clean and reinstall. I use maf cleaner and canned air afterwords to dry it quickly. DO NOT USE COMPRESSED AIR from a tank as there might be too much pressure that could damage your wire.