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#2 Re: P0641 Code
Explicit_Spade

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05-26-2014

- Faulty Engine Control Module (ECM)
- ECM harness is open or shorted
- ECM circuit poor electrical connection
- Shorted sensor on 5 volt circuit

Originally Posted by W-Body Store

Remember, GM engineers didn't take into account your need for speed.

Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750

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