Airdog install gone bad!!!!!
#1
Airdog install gone bad!!!!!
Hey I just installed an AD 100 and install went easily. I installed fuel into stock fuel canister. I primed system but truck will not start. I ran code and got P1688 which is Internal Fuel Injection Pump Controller Failure. What does this mean? Is the injection pump dead? I did bleed lines to injection pump, do I need to bleed injectors? Please help!!
#2
Hey I just installed an AD 100 and install went easily. I installed fuel into stock fuel canister. I primed system but truck will not start. I ran code and got P1688 which is Internal Fuel Injection Pump Controller Failure. What does this mean? Is the injection pump dead? I did bleed lines to injection pump, do I need to bleed injectors? Please help!!
Yes, you will likely have to bleed injectors. Start with #1, 3 & 5 ** BE CAREFUL AS THE SPRAYING FUEL IS VERY HIGH PRESSURE **
#3
If the truck was runnin good when you replaced the LP I'd bet on havin a massive amount of air in the system that just needs to be bleed off. Just keep on bumpin that starter till you gettin steady flow through the injectors and ten tighten em down.
If you haven't already done it would also start checking for air at the fuel cannister and work your way through the system. Go from the cannister to the outgoing line on the injector pump and then to the injectors. Do one injector at a time and start with the easy ones in the front. If you can get the first couple to flow fuel it normally will get the truck started. When you think you have fuel there also hold your foot to the floor on the go pedal while your crankin to allow the air to flow through the system and out.
If you haven't already done it would also start checking for air at the fuel cannister and work your way through the system. Go from the cannister to the outgoing line on the injector pump and then to the injectors. Do one injector at a time and start with the easy ones in the front. If you can get the first couple to flow fuel it normally will get the truck started. When you think you have fuel there also hold your foot to the floor on the go pedal while your crankin to allow the air to flow through the system and out.
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Thanks for the help, even if it is bad news. I will try to bleed injectors.
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I tried clearing code but my superchip code reader won't, I don't know if it is the reader or the truck computer won't let it be cleared.
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Well I just tried to bleed the lines, but nothing came out. All you have to do is crack the line some, you don't have to totally take the injector line off do you? Is there any diagnostic other than what I have done to be sure it is the injection pump?
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I tried clearing code but my superchip code reader won't, I don't know if it is the reader or the truck computer won't let it be cleared.
---AutoMerged DoublePost---
Well I just tried to bleed the lines, but nothing came out. All you have to do is crack the line some, you don't have to totally take the injector line off do you? Is there any diagnostic other than what I have done to be sure it is the injection pump?
Last edited by texas503; 06-09-2009 at 12:51 PM. Reason: Automerged Doublepost
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