Wiring problems or maybe bad ECM ??
#1
Launching!
Thread Starter
iTrader: (119)
Join Date: May 2008
Location: Jefferson City, MO
Posts: 220
Likes: 0
Received 0 Likes
on
0 Posts
Wiring problems or maybe bad ECM ??
I have a 70 Chevelle that i installed an LS1 in about 6 years ago and ran great then last year i swapped to a 402 LS engine,it sat for a long ttime in between.Now i cant read the ecm through the obd plug it says its not plugged in,i have tried 2 different 99 ecm's no change.And fuel pump wont cycle on through relay,turns over but wont fire ?Very possibly a wire not hooked up or grounded where it should be. Can anybody help i suck at wiring,anybody on here good with this king of stuff ?