99 Dodge runs great one minute then smokes and jerks the next - Dodge Cummins Diesel Forum
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Go Back   Dodge Cummins Diesel Forum > 2nd Gen. Dodge Cummins 98.5-02 24V Forums > 98.5-02 Powertrain
98.5-02 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect..NO ADVERTISING .

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Old 06-26-2013, 02:32 PM   #1 (permalink)
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99 Dodge runs great one minute then smokes and jerks the next

1999 Dodge 5 speed runs good one minute then bad the next ... Codes were p1693 and po602 ... what is the po602 thanks ...
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Old 06-26-2013, 03:02 PM   #2 (permalink)
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I did have erratic idle after replacing injectors and did not disconnect the battery.
A couple of days ago I pulled the valve cover and checked torque on injectors.

They were all out of spec for torque. I checked lines and were fine. My idle issues went away.
I got p602 and reader said it was something with the idle. I replaced apps a month ago so i disconnected battery, did apps reset and code did not came back so I am figuring because of the erratic idle, it threw this code.

(When I replaced injectors,I tightened the hold downs to spec, then torqued lines to spec and put it all back together, guess I should have checked the hold downs again after torquing the lines in head! )
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Old 06-26-2013, 05:53 PM   #3 (permalink)
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Well I was about to get ready to run my Dodge that I just bought off in the river and say to hell with it !!!! I knew it was getting way to much fuel and Ive saw this black box under the hood that looked like it was some kind of add on ... It had EDGE written on it so I looked it up ... Found out it was for more power ... Took that junk off and now my truck runs like a new one ...
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1999 Dodge 3500 ... 2WD ... 24 V ... 5 Speed ... Backhoe pulling truck ... isspro fuel gauge # R5604 from city diesel Decatur Alabama 256-350-5160 Call them they'll fix you up with fuel pressure gauge braded line and snubber ...
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Old 06-26-2013, 05:58 PM   #4 (permalink)
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Mopar1973Man's Dodge Cummins Articles - P0602 ECM Fueling Calibration
Sounds like you had an edge ez, they not only add power but will help with mpg also.
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Old 06-27-2013, 11:34 AM   #5 (permalink)
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Harry in response to your reply in the other thread your ecm is mounted on the driver's side of the block the pcm is on the firewall. Before you go throwing parts at it clean the grounds,and batteries, reset the codes and give it a try.
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Old 07-04-2013, 05:56 PM   #6 (permalink)
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ok I did what you said ... THE PROBLEM COMES BACK IN A DAY OR SO ... Where do I get a ECM ??? OR can I flash my ECM AND FIX IT THAT WAY ... I CAN GET A ECM FROM DODGE FOR $900.00 Damn cant I find one at a better price some where ...
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1999 Dodge 3500 ... 2WD ... 24 V ... 5 Speed ... Backhoe pulling truck ... isspro fuel gauge # R5604 from city diesel Decatur Alabama 256-350-5160 Call them they'll fix you up with fuel pressure gauge braded line and snubber ...
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