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 Re: 3.0 running rich/high idle
#537370
12/16/04 12:05 AM
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Joined: Oct 2004
Posts: 125
Wheeler
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First, check your codes. I had a similar rich-running problem and did not check trouble codes until I had done many other things. Codes showed a bad air flow meter and barometric pressure sensor (both are one unit). Replaced that unit and mileage went from 9 mpg (stinko) to 14-15 mpg, so it can make a lot of difference. The car operated normally except for the rich mixture and there was absolutely no indication that the MAS meter was not functioning properly.
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 Re: 3.0 running rich/high idle
[Re: MontyMcV]
#537371
12/16/04 04:25 AM
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Joined: Oct 2004
Posts: 6,332
Trail Leader
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Definately. Not saying that it is all of your problem, but it could be. also check your diverter valve.
If you decide to seal up any leaks, DO NOT use silicone sealant. It gets onto the O2 sensor and destroys it. Then the problems really start.
Check codes first, like everybody keeps saying. You may or may not have a lean exhaust code. Fix exhaust leaks first before looking elsewhere.
Clay
1990 Montero RS (In pieces... for now)
KG6VNX
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Re: 3.0 running rich/high idle
[Re: 52degrees]
#537372
12/16/04 06:22 AM
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Joined: Jun 2003
Posts: 7,356
Trail Leader
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Check codes first, like everybody keeps saying. Just have to get around to picking up a analog meter... <img src="/forums/images/graemlins/rolleyes.gif" alt="" />
Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand! Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top Her Truck: 03, 3.8, 20th Anniv, 65k Daughter's: 06 Eclipse, Keeping it Mitsu! FSMs: MitsubishiLinks.com
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