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Re: 01 Blazer p0300 code
I just so happened to have my 97 Tahoe in the driveway and it uses the same ICM so I swapped it and no change. I also had a spare coil and tried that too.. No change.
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 Steve
1997 Tahoe LT 4D 2WD (DD)
1961 Apache 10 (sold)
1965 C10 Stepper (sold)
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