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Extreme power puck throwing p0102

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Moderator: mikel

Post Wed Feb 11, 2015 1:08 pm

Posts: 8
2008 lmm duramax
Fully installed and shimmed also.
Throws P0102 code when I get on it hard and have the knob turned up more than ~30%.
Fuel pressure drops to 10000k.
Also boost on my electronic boost guage goes down to 20psi from 25psi on max effort when I hve the knob turned all the way up..
Is this because of the boost fooler?

Post Wed Feb 11, 2015 1:24 pm

Posts: 53232
Location: DiabloSport World Headquarters

the fuel pressure sounds like the shim is not allowing it to hold pressure.

the boost is a result of the boost fooling, yes.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
561-908-0040x4
M-F 8:00 AM to 5:00 PM EST

Post Wed Feb 11, 2015 1:43 pm

Posts: 8
Thanks for the reply Mike.
I put three shims in so I don't think it's that. I think it may be dropping the rail pressure after the MAF code/error maybe?

Post Thu Feb 12, 2015 7:16 am

Posts: 8
Does the puck "fool" the rail pressure in the same sense as it fools the boost? Meaning does it show lower rail pressure on an electronic guage when the knob is cranked?

Post Mon Mar 02, 2015 1:16 pm

Posts: 8
Follow up.
It was my fuel filter causing the drop in rail pressure. Had it replaced and all is good there.
Still have code P0102 though


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