Causes of running rich?
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Joined: Jul 2002
Posts: 740
From: Gainesville, FL
Causes of running rich?
I know O2's are always a big one..replacing those right now.. I also replaced the plugs and wires. It just started running rich for no reason, didnt do any mods or anything to cause it. Stock computer. Replaced fuel filter.
What are some other common causes?
What are some other common causes?
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Joined: May 2003
Posts: 2,275
sticky injectors or a hole in the FPR diaphragm. This leaks fuel into the vac line connected to the regulator and sucks fuel into the intake. Check this by looking at the vac line and see if its wet. check both by watching fuel pressure after the car is shut down to see if it drops off.
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Joined: Jul 2002
Posts: 740
From: Gainesville, FL
Originally posted by gb95zconv
Exhaust /header leak.....will cause a false lean condition resulting in fuel being dumpped by the pcm.
Exhaust /header leak.....will cause a false lean condition resulting in fuel being dumpped by the pcm.
Is there a way to pin point this using my scanmaster?
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Speeds8erM-1
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Jul 18, 2002 11:36 PM