Running Rich???

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
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sjbsuperman1425
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CA18DET
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i've been having problems with running rich in my CA18 S13. Heres the thread to it. I know two threads are needed, but im hoping it'll extend my possible responses as i am just stumped on what it could be??

zerothread?id=413376


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S13Joe
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Car: 92 Coupe

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vacuum leak? timing?

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xX RB Xx
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too much fuel pressure....

need nismo fuel pressure regulator..

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sjbsuperman1425
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no vac leaks, and i think timing is the last thing i can do. its also a little hard to start and has intermittent unstable idle.

hypothetically, if i've been running rich for awhile, fixed the problem, then cleaned the exhaust, would some soot still become present for awhile in the tailpipe or no?

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sjbsuperman1425
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xX RB Xx wrote:too much fuel pressure....

need nismo fuel pressure regulator..
have one and is set per fsm.

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xX RB Xx
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sjbsuperman1425 wrote:
have one and is set per fsm.
well... check it again

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sjbsuperman1425
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xX RB Xx wrote:
well... check it again
what do you think im stupid or something? lol its 100% accurate. i think it might be the idle switch..

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dc1984
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check ur sensors, maf and o2.


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