Code P0641 problems
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P0641 code into limp mode 
Solved
GMC Yukon 2008 Denali 6.2l 248000 miles
Code p0641 pops up after touching gas peddle then goes straight to limp mode need help asap
2 replies
CH
Changed pcm and fuse box don't know what to do
Vote helpfulBest answer (according to Chungus)
CH
It was the alternator
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