Chevy and GMC Duramax Diesel Forum - View Single Post

**Bryan@ATS Diesel** · 05-15-2008, 08:24 AM

P0380-GLOW PLUG HEATER CIRCUIT A
I've never had this code but try clearing it and see if it comes back. If so, you may want to replace the relay
P0463- FUEL LEVEL SENSOR
The only reason for this code to come up is because the ECM is not sensing a drop in fuel level within a certain amount of time. That being the case, I would check to make sure your fuel gauge is working properly.
P1093-FUEL PRESSURE LOW
You lost rail pressure here. Probably because of your module level set too high.

05-15-2008, 08:24 AM	eBay Motors #3 (permalink)
Bryan@ATS Diesel ATS Tech Support Join Date: Nov 2007 Location: Arvada, CO Posts: 486	P0380-GLOW PLUG HEATER CIRCUIT A I've never had this code but try clearing it and see if it comes back. If so, you may want to replace the relay P0463- FUEL LEVEL SENSOR The only reason for this code to come up is because the ECM is not sensing a drop in fuel level within a certain amount of time. That being the case, I would check to make sure your fuel gauge is working properly. P1093-FUEL PRESSURE LOW You lost rail pressure here. Probably because of your module level set too high. __________________ 2003 GMC Sierra LB7 **ATS EXTREME* Transmission, ATS Billet Flexplate, ATS Aurora 5000, 4" downpipe to a 5" Single Stack, ATS Epower Programmer, Custom 4" Intake with AFE Filter, ATS Billet Tie Rod Sleeves, FASS 150/150* www.atsdiesel.com 866-230-4092** Last edited by Bryan@ATS Diesel : 05-15-2008 at 08:27 AM.