03SSBoy Posted March 18, 2015 Report Share Posted March 18, 2015 (edited) I turn on the truck and it turns on but immediately shuts off. CEL on What could be the problem? Truck is a sierra ls3 swapped cammed and was working perfectly yesterday Edited March 18, 2015 by 03SSBoy (see edit history) Quote Link to comment Share on other sites More sharing options...
GI.SS Posted March 18, 2015 Report Share Posted March 18, 2015 what are the code(s)? and do you have fuel pressure while running? Quote Link to comment Share on other sites More sharing options...
03SSBoy Posted March 18, 2015 Author Report Share Posted March 18, 2015 dont have a scanner so cant tell you and no gauges. planned on putting them on soon. im going to check fuel pressure and maf sensor Quote Link to comment Share on other sites More sharing options...
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