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Tahoe & Suburban The power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.

2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

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Old 01-03-2012, 05:10 PM
rhunt1946 rhunt1946 is offline
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Join Date: Jan 2012
Location: Chelsea, OK
Posts: 1
Default 2002 Tahoe codes PO178 and PO179

My Tahoe shows these codes. I don't use flex fuel. Could these codes refer to some other sensor instead of the fuel composition sensor?
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Old 01-03-2012, 05:16 PM
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73shark 73shark is offline
Join Date: Apr 2006
Location: KC, MO area
Posts: 7,888

Welcome to the forum.

Is your truck built for FlexFuel? If so, then it will have the sensor. Doesn't matter if you burn corn in it or not.
2010 Sheer Silver Tahoe LTZ (all options but sunroof, power boards), GM (body color flaps, rear console, 3rd row mat, 2-Way Remote, chrome gas door, Esky rack), Eagle Eye LED tails, SLP dual tip exhaust, Silver bow-ties/rear wiper, Catch-All mats, AlphaTherm washer fluid heater, Putco chrome mirror covers, silver calipers, board chrome trim, tint, GMPP Major Guard

2007 Black Tahoe LTZ (Sold),
(GM flaps-$15, Lund Step Tubes-$80-For Sale)
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Old 01-03-2012, 05:16 PM

02, 2002, chev, chevrolet, chevy, code, codes, compensation, fuel, gm, po178, po178b, po179, sensor, suburban

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