HELP!!! SES light on scan gauge won't read codes! Please help! - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 05-31-2013, 08:34 AM Thread Starter
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HELP!!! SES light on scan gauge won't read codes! Please help!

I've been having a rough time my truck lately. It has been missing and surging while you drive it. I changed out the CPS twice, the last CPS has helped but not cured it. Now the SES light is on, my scan gauge isn't picking up any codes from the truck and while you drive it it feels like the it's struggling to run. But the SES light will go off from time to time while you drive it and it clears up and runs right while it's off. Please help I'm thinking about leaving it in a bad neighborhood with the keys in it.

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2001 F-250 Lariat
7.3L 4x4 short bed
DIY straight pipe exhaust, K&N cold air intake, IAH delete, wicked wheel, stage 2 injectors w/100% over nozzles by Rosewood Diesel, wastegate line bypassed, rebuilt 4R100 with transgo shift kit and HD torque converter, DIY leveling shackles, EBV Delete, '08 Super Duty Wheels, A-Pillar Gauges:Boost, Pyro, Trans. Temp, Fuel Pressure,..........
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post #2 of 5 Old 06-04-2013, 02:00 PM Thread Starter
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OK here's an update. I tore down to the valve covers and found that the drivers side injector wiring harness was backed out by probably an eighth of an inch. After zip tying the connection in place and putting everything back together started the truck and the ses light was on and the truck was running horrible it would struggle just to get to 50 mph. I forget what code it was now but I assumed one of the pins on the connector had burnt up so I bought a replacement from Napa. Got it put in today and that fixed that issue. But now I'm back to a precious issue. When driving the truck it has like a bucking feel to it every so often. But not while you accelerate. I pulled the codes and this is what my buddies reader came up with. Any ideas?HELP!!!  SES light on scan gauge won't read codes! Please help!-1370383129526.jpg[ATTACH]120586

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2001 F-250 Lariat
7.3L 4x4 short bed
DIY straight pipe exhaust, K&N cold air intake, IAH delete, wicked wheel, stage 2 injectors w/100% over nozzles by Rosewood Diesel, wastegate line bypassed, rebuilt 4R100 with transgo shift kit and HD torque converter, DIY leveling shackles, EBV Delete, '08 Super Duty Wheels, A-Pillar Gauges:Boost, Pyro, Trans. Temp, Fuel Pressure,..........
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post #3 of 5 Old 06-04-2013, 02:02 PM Thread Starter
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Also I have deleted my AIH , the EBP sensor is unplugged because my truck is straight piped, and I just replaced the CPS the other day with one that I bought from Ford. Any input would be appreciated.

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2001 F-250 Lariat
7.3L 4x4 short bed
DIY straight pipe exhaust, K&N cold air intake, IAH delete, wicked wheel, stage 2 injectors w/100% over nozzles by Rosewood Diesel, wastegate line bypassed, rebuilt 4R100 with transgo shift kit and HD torque converter, DIY leveling shackles, EBV Delete, '08 Super Duty Wheels, A-Pillar Gauges:Boost, Pyro, Trans. Temp, Fuel Pressure,..........
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post #4 of 5 Old 07-11-2013, 09:28 PM
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You sound like youre having the same issues I am!!!! Please help us someone!!



1999 F250 Lariat 4X4 Offroad
Under the hood: 7.3 diesel, 4in straight piped to 6in shotgun dual stacks, DIY 6637, Bigg Boost. Foil delete. Riffraff FRx. IH Bellowed Up Pipes. Wicked Wheel Gen 1. TS Chip with canned tunes
Cosmetic: Bushwhacker fender flares. Moto Metal 951 18's wrapped with Nitto Trail Grapplers 295/70/18
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post #5 of 5 Old 07-12-2013, 05:48 AM
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First, forget your buddies scanner! It's just not up to the task Our trucks are Not, specifically, OBD-II and can't be accurately read with one of those cheap scanners. You have codes, the light comes on, that thing just doesn't see them. Get it on a professional scanner and find out what's causing the SES...

Second - "But now I'm back to a precious issue. When driving the truck it has like a bucking feel to it every so often" Are you saying you feel a Miss, but not under Load? Does the SES ever come on now?

AND "the EBP sensor is unplugged because my truck is straight piped" -???? What does That mean?
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