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International Automotive Technicians Network
Re: 95 Blazer 4.3 Lean midrange, rich idle, OK WOT before dying
Posted to Technical Discussion Forum on 1/22/2008

With fuel trims at 160, either it is not able to get enough fuel or the fuel calculations are not correct. You might have a problem with the map sensor or the oxygen sensor. I think these are the main inputs for fuel controll. I would wonder why it will not re... Login to read more.