Help with codes P1391, P1393, P0381
#1
Help with codes P1391, P1393, P0381
Hello, all. I live in CA and have a 99 F250 with the 3 codes. I have a GPR with bus bar and NOT a GPCM. I changed the GPR, all new glow plugs, and even the wiring harness on the right bank (soldered it on). I still get both P1391 and P1393 codes. I checked the bus bar and connections look fine and tight. Truck runs great and starts right up. Any suggestions on what else I can try? My emissions test is coming up soon and it looks like I may be failing unless I can fix it!
Also, just recently my WTS light doesn't come on anymore and it's also throwing code P0381. This started a few weeks ago.
Also, just recently my WTS light doesn't come on anymore and it's also throwing code P0381. This started a few weeks ago.
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IDIoit
1999 - 2003 7.3L Power Stroke Diesel
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03-23-2017 11:18 AM
Jetmech6
1999 to 2016 Super Duty
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11-22-2016 03:08 PM