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Old 06-27-2010, 01:38 PM   #1 (permalink)
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97 6.5 k3500 surges, no idle, p1216 code

Ok I have owned this unit since new, GM has replaced the ip several times, just replaced the fuel lines(porous), lift pump and fuel filter. PMD is remotely mounted on a heat sink, the unit will not idle....it surges from 1k to 22k continuously. P1216 code in the history. any help would be greatly appreciated, treated the fuel with booster and cleaner.
97 k3500, 4:10 lockers, used as a work vehicle, currently on its second pump 75k. 125k on the truck with little trouble
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Old 06-27-2010, 02:14 PM   #2 (permalink)
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How long have you had the PMD remote mounted, and where is it locate? Since your pump has been replaced a couple of times, is there still a PMD on it, and is it still good? Or if you have another known good PMD, I'd try that and see if the symptoms persist.

1997 Chevy Suburban K1500 - 6.5TD, 4" SSD Exhaust, SSD FSD Heat Sink mounted behind bumper, 3 gauge pod (EGT, Boost, Trans Temp), HE351VE currently with VGT control (peak 15-18psi using Ford wastegate actuator), Water-to-Air intercooler, Heath GL4 ECU
1993 Jeep Grand Cherokee - 4.0l, custom 6" full long arm suspension, 34" LTB's, high clearance skid/x-member, 02+ WJ knuckles and brakes w/ OTK steering, ARB bumper w/ 9k lb Superwinch winch, york OBA, ARB locked front HP30, Aussie locked 8.8 rear
1988 Jeep Wrangler - 2.0l turbo Saab engine, T5 trans, 231 transfer case
1986 Saab 900 Turbo - 2.0 turbocharged with 2.1l heads and intake, tweaked APC for ~18psi boost, BFG G-Force Sport tires
2002 Saab 9-5 Aero - Stock, Dunlop Direzza Sport Z1 summer times for stupid good grip
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