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11-10-2010, 02:34 PM
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#1 | |
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AF Newbie
Join Date: Jul 2007
Location: Parma, Ohio
Posts: 86
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95.5 Isuzu Rodeo running rich
I have a 1995.5 Rodeo with 3.2L and 160k miles. It runs rich. Black smoke from exhaust. No codes. Air to fuel ratio is 2:1. Timing is good. What should I do to fix this?
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11-10-2010, 07:57 PM
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#2 | |
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AF Enthusiast
Join Date: Nov 2003
Location: Spokane, Washington
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Re: 95.5 Isuzu Rodeo running rich
Where are you getting your air/fuel ratio? Ideally, air/fuel ratio is 14.7:1.
You could have any of a number of things wrong. Leaky injectors, bad fuel pressure regulator, coolant temp sensor, plugged up air filter.....that's off the top of my head.
__________________
99 Rodeo LS 3.5L Stroker V-6, 4wd, 31x10.5x15 2 inch Trooper lift, Aisin manual hubs. 03 GMC Envoy XL SLT 4x4 5.3L V8 |
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11-11-2010, 10:02 AM
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#3 | |
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AF Newbie
Thread starter
Join Date: Jul 2007
Location: Parma, Ohio
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Re: 95.5 Isuzu Rodeo running rich
I have a snap-on mt-2500 brick. One of the pids displayed is the air to fuel ratio. I have already replaced all the injectors, fuel pressure regulator and air filter. I did not replace the coolant temp sensor because I was getting readings on both the dash gauge and the snap-on scan tool. Any other ideas would be greatly appreciated. Thanks.
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11-12-2010, 12:30 PM
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#4 | |
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AF Regular
Join Date: Feb 2004
Location: Spokane, Washington
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Re: 95.5 Isuzu Rodeo running rich
When I had this problem, it turned out to be the oxygen sensor.
http://www.automotiveforums.com/vbul...d.php?t=258045 Good Luck, Dale |
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