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Opinion Needed: Dropping in New 3.8 liter motor

Old 07-11-2019, 07:54 AM
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Join Date: Jun 2019
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Default Dropping in New 3.8 liter motor

Ok I have a 2001 monte Carlo ss 3.8 liter motor whice I replace recently with a 2003 3.8 liter but this one I put in was a supercharge motor so it's slightly different from the regular 3.8 now since I have made the switch my car only crank over but no start everything is properly hook up I thing could it be I have to reset my ecu? Or is it something I'm not doing correctly please help me out with this one anybody
Old 07-11-2019, 04:33 PM
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What did you do about the pcm tune? The two engines have different map sensors / maf sensors / calibration.

If you properly loaded the SC tune, check for fuel and spark as usual. Likely missing one or more of those if it's not giving any sign of life while cranking.

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