LS Swap Retuned - Engine won’t start

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born2Run83

Full Access Member
Joined
Oct 28, 2021
Posts
119
Reaction score
153
Location
West Texas
First Name
Justin
Truck Year
1983
Truck Model
GMC - C1500
Engine Size
5.3L LM7
Swapped PCM with factory off an '06- and uploaded performance Tune. Truck fired right up and back to normal. Lesson Learned: ALWAYS put a battery charger on battery when messing with the RTD/tuning stuff.
 

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