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running rich

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Offline inchaos10

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running rich
« on: April 09, 2011, 06:55:34 PM »
I have a 1.6 8valve thats running rich. replaced the o2 sensor already. what els can it be?
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Offline GlockGuy40Cal.

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Re: running rich
« Reply #1 on: April 09, 2011, 11:54:23 PM »
does the exhaust manifold have a crack in it?
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Offline fordguy79

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Re: running rich
« Reply #2 on: April 10, 2011, 10:33:57 AM »
x2
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87sami 32" bfg mt 6.5:1 w/reverse S shifter  1.6 16v sold and missed
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Offline inchaos10

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Re: running rich
« Reply #3 on: April 10, 2011, 12:05:06 PM »
I cnt see a crack with it on. But i do have a leak where it bolts to the rest of the exhaust. Im guessing this is causeing it?
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Offline CAMISAMI

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Re: running rich
« Reply #4 on: April 11, 2011, 05:40:17 AM »
Only if it is before the O2 sensor. I will asume this is a speed density EFI meaning it does not have a mass air flow[MAF] sensor- I would look at the manifold absolute pressure[MAP] as it is the main source of info for the ecu for fuel along with the O2 sensor. ck the wire connection and the vac hose. if it is a MAF system the same holds true for the MAF ck the intake hoses and MAF connector.
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