p1688 code
#1
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Location: hobe sound fl
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p1688 code
while driving to work my engine light came on, after work i stopped at advanced auto and let them check it, a p1688 internal fuel injection pump controller malfunction, everything i've read says the pump is out or going out, other than the engine light my truck runs great, 2 days ago i replaced the turbo, it has a fuel pressure gauge but i'm not sure if it is working right, it was install per manufactures directions, at idle it reads 30, at road speeds it's 24-25 psi, anyone have any answers, thanks
#2
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If you haven't go to Blue Chip Diesels site and review his trouble shooting guide. Then if you still have questions, give them a call, I found them to be very helpful.
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