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  1. Running so lean its scary! Brainstorming welcomed

    Problems & Troubleshooting
    2006 redline 120000 miles bought it recently for peanuts. few days later engine light comes on, using torque pro, the fault os for p0171- system too lean my long term fuel trim is almost 30% i clean the maf, check the voltage, it seems fine. start looking for exhaust leaks and find that...
  2. P0100 CEL is it causing my p0171?

    Problems & Troubleshooting
    I bought this car with a CEL in the beginning of November. When I picked it up the dealer said they fixed the light. So with it "fixed" I installed a boost gauge. after a few days I got P0171 system too lean bank 1. The dealer wont touch it because "boost gauge caused this new light"...