jvmidge wrote:Codes were
P1664 ecm demanding less fuel
P1665 fuel injector pump wiring fault pump control module
P0404 egr range performance hose leak or blockage or egr wiring. .
Hope this helps. Normal disel in fuel filter just dirty bits in filter. Thanks
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P0404 Exhaust Gas Recirculation "A" Control Circuit Range/Performance
- Faulty EGR valve. Possibly stuck wide open resulting is hesitation when accelerating & excessive smoke from exhaust.
P1564 Injection Pump Control Module Requesting Reduced Fueling
P1664 Injection Pump Control Module Malfunction
- normally associated with a Failed fuel pump (EDc bolted to top of pump.)
If
P1665 Injection Pump Control Module Communications is present as well. I would suggest check wring to fuel pump.