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  #1  
Old 06-30-2015, 01:52 PM
original_mongo's Avatar
original_mongo original_mongo is offline
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Join Date: Jun 2015
Location: Texas
Posts: 7
Exclamation Possible dead pedal issue

I say possible because I have had it checked out to the point that the mechanic said he is done.
I have a 1999 24v dodge cummins in a 3500 4x4 with manual transmission with 187,000 miles. I have had the injector pump, lift pump, APPS/TPS, and ECM replaced. The mechanic put an isolator on the injector pump, removing the rest of the truck from the system, and it ran fine at high and normal idle. He pin checked the entire wiring harness and found no problems. The truck throws P1689 and P1690 codes so he used the isolator and then pin checked the wiring harness to find the issue with no luck. Now just to be clear, this mechanic retired from a dodge dealer after 20 years and opened his own shop because "I got my retirement and I was tired of making Monet for somebody else".
I'm picking my truck up from his shop today because he said he is up against a brick wall and is frustrated that he has not been able to find the problem over the course of the last 2 weeks. He said that my fuel pressure is as good as anybody could want (10 - 12 psi all of the time), the truck runs fine on the isolator, and the wiring harness all checks out so he is at the end of his wits over it. Also, after 2 weeks in his shop, he said "I can't charge you for something I didn't fix".
If anybody can tell me what to do to fix this issue I would greatly appreciate it! The truck is great other than this issue.
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  #2  
Old 06-30-2015, 06:57 PM
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MnTom MnTom is offline
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Welcome, Mr. Original_Mongo!! Glad to have you here! Hopefully we can put our collective heads together and help you solve your problem! We will use this thread for your intro and use the other thread for suggestions.
Tom
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
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Old 07-03-2015, 08:13 AM
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stodg73 stodg73 is offline
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Welcome Sir!
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O.O., 01.5, Dodge, 2500, High Output (H.O.) Cummins Turbo Diesel (245/505), Quad Cab Long Bed (QCLB), 4x4, Sport, Original Bosch VP 44 Injection Pump, 6 Speed/NV5600 Transmission, 3.55 Gears, 105k, currently stock engine, Fram Air Filter, 285/75R16s, Glow Shift Gauges: Fuel Pressure (FP), Boost, Exhaust Gas Temperature (EGT), Oil Temperature, SMARTY@1, Airtex lift pump 19 psi @ idle, 14 psi @ WOT, Propane Injection, 2 Stroke Oil, Intake Air Temperature (IAT) Fooler = Better MPG, Bed Lined, Chrome Nerf Bars, more to come!!

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