running rich

ONLY for ADVANCED technical discussion about the 240sx!
Northern240
Posts: 14
Joined: Mon Nov 25, 2002 10:30 am

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Hi guys. I need some help, I think my car is running rich bc everytime i delecerate it makes lots of popping sound and also i get really bad gas milage...about 500km per tank approx 60L. Any help would be great guys.:help


DriftFasterThanGrip
Posts: 37
Joined: Mon Jun 07, 2004 12:40 pm
Contact:

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What is your air/fuel ratio and do you have a super afc or any tuning instruments?

spoolthis
Posts: 40
Joined: Mon Apr 26, 2004 11:07 pm

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Your o2 sensor(s) would be something to check. Although with mileage that bad, you may have something else going on.

*edit - After doing the conversions and calcs, ~20mpg isn't all that bad. Could very well be the oxy sensor. This is assuming a mix of ciy/hwy driving.

rousie13
Posts: 4106
Joined: Fri May 09, 2003 5:55 pm
Car: 2006 Nissan 350z Track Edition, 1997 Ford F250 4X4
Location: Delaware, OH

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Also check your coolant temp sensor. Mine was bad and making my car run VERY rich.

Northern240
Posts: 14
Joined: Mon Nov 25, 2002 10:30 am

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Thanx guys I'll try that tomorrow and I don't have an afc yet.


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