no start 3.8l

  1. Y

    PO449 code

    So I finally changed the ICM today and my car won't start. The battery seems weak. The engine didn't catch and it clicked once at the end. I'm going to charge my battery at advanced auto and then try again. Could the P0449 code stop my car from starting?
  2. R

    No Start

    Hello, I will try to be thorough but its a weird no start. I have a 2006 Grand Prix base, rust free car. I recently rebuilt the car, not wrecked, but it was all stock & bad. I rebuilt the motor, replaced the fuel system from pump to injectors, the whole 9 yards down to the tires. Everything was...
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