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With the scanner hooked up, is it showing the rpm while cranking? Should be around 250ish RPMs.
If the scanner shows the 0 RPMs cranking, you have a problem with the crank sensor/ reluctor/ signal wire.
If the scanner shows ~250 RPMs cranking, you have a problem with the low side driver circuits for your coils/injectors. (The ECM isn't grounding the circuits for some reason, loose ground etc.)
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*2016 1SS A8-12.100 @115 Bone Stock.
11.54 @116 with cat delete, converter and dr's
Previous Rides
2010 Camaro 1SS M6-12.14 @114 Bolt Ons
2014 GMC Sierra SLT 5.3/6L80
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