s 13 running rich - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jeedriftbetta · 09-26-2013, 02:04 PM

hey guys looking for help to fix my s13. i have an sr20det and my coupe is rinning rich on boost. any time i try to puch it to take off it looses power and you can say it gets clogged and i have to shift gear for it in order to run. when ever i punch it to take off it pulls back between 4000 and 5000 rpm. its killing me on gas and more because i use it ass my daily. o hope you guys can help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Dboyizmlg · 09-26-2013, 02:25 PM

....?

How do you know you are running rich?
Do you have a wideband installed?
What are your a/f ratios?

jsu1012 · 09-27-2013, 10:22 AM

^what he said. We need more info.

jeedriftbetta · 09-28-2013, 04:15 AM

No wide band. How can I get the a/f ratio. I know its running rich because it is not burning my gas, every time I drive it it smells like gas. I also took it to the shop and they cant find the problem, they told me that its a mixture if little problems that is causing my car to run rich.i just dont know what the problem might be! How can I find the issue?

Dboyizmlg · 09-29-2013, 02:35 PM

You need a wideband so you can determine where you're A/f ratios are at.
If you smell gas while you drive, then you should starts looking for fuel leaks. Might want to start with the fuel hose at the fuel filter, and fuel lines around that area. Also, take a look at the injectors some times the O-rings go bad, and leak fuel on the intake manifold.

If all else fails, try replacing you're O-ring on the fuel pump cover (gas tank).
It maybe coming from there also.
It's pretty easy to determine a leak.

Sounds like the shop you took it to, didn't really know what they were doing.
If you are NOT burning enough gas then I would think that would cause it to be Lean. (Not rich).

Look for fuel leaks, fix that first then go from there.
Tune up might help

09-26-2013, 02:04 PM	#1
jeedriftbetta Join Date: Nov 2011 Location: Los angeles Age: 31 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	s 13 running rich hey guys looking for help to fix my s13. i have an sr20det and my coupe is rinning rich on boost. any time i try to puch it to take off it looses power and you can say it gets clogged and i have to shift gear for it in order to run. when ever i punch it to take off it pulls back between 4000 and 5000 rpm. its killing me on gas and more because i use it ass my daily. o hope you guys can help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

09-26-2013, 02:25 PM	#2
Dboyizmlg Nissanaholic! Join Date: Aug 2011 Location: SoCal (I.E.), San Berdino, Colton, Redlands Posts: 1,665 Trader Rating: (17) Feedback Score: 17 reviews	....? How do you know you are running rich? Do you have a wideband installed? What are your a/f ratios? Last edited by Dboyizmlg; 09-26-2013 at 02:26 PM.. Reason: Miss spelled

09-27-2013, 10:22 AM	#3
jsu1012 Zilvia FREAK! Join Date: May 2011 Location: Oklahoma Age: 35 Posts: 1,102 Trader Rating: (13) Feedback Score: 13 reviews	^what he said. We need more info. __________________

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09-28-2013, 04:15 AM	#4
jeedriftbetta Join Date: Nov 2011 Location: Los angeles Age: 31 Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	No wide band. How can I get the a/f ratio. I know its running rich because it is not burning my gas, every time I drive it it smells like gas. I also took it to the shop and they cant find the problem, they told me that its a mixture if little problems that is causing my car to run rich.i just dont know what the problem might be! How can I find the issue?

09-29-2013, 02:35 PM	#5
Dboyizmlg Nissanaholic! Join Date: Aug 2011 Location: SoCal (I.E.), San Berdino, Colton, Redlands Posts: 1,665 Trader Rating: (17) Feedback Score: 17 reviews	You need a wideband so you can determine where you're A/f ratios are at. If you smell gas while you drive, then you should starts looking for fuel leaks. Might want to start with the fuel hose at the fuel filter, and fuel lines around that area. Also, take a look at the injectors some times the O-rings go bad, and leak fuel on the intake manifold. If all else fails, try replacing you're O-ring on the fuel pump cover (gas tank). It maybe coming from there also. It's pretty easy to determine a leak. Sounds like the shop you took it to, didn't really know what they were doing. If you are NOT burning enough gas then I would think that would cause it to be Lean. (Not rich). Look for fuel leaks, fix that first then go from there. Tune up might help