Engine loss of fuel after hard acceleration.

[Dieselfuture]

@Mopar1973Man @IBMobile my truck is not broke down and both ecms are fine, at least the one in my truck seems fine but I had some surging going on in passed and now that alternator is in good shape and grounds been addressed i wanted to make sure it's not corrupted. And my spair ecm I got of a running truck with 180k on it is just that a spear, I got it for a decent deal just to have it. So I want to make sure my ecm is fine and won't leave me stranded and also need to activate 3/6cyl high idle on both ecms assuming spear one is not enabled aready. And also spear ecm needs to be checked and flushed so it can work on my truck unless it can the way it is idk, all options on donner truck were same as mine just a year older. So for $120 for each ecm is getting close to a used smarty for $300 that I can always sell or I can rent one from Dap and do both of ecms with a current flash and activate idle, but that still won't tell me if they are good. 

Reason I want to check mine is from previous surge i had that after fixing alternator and changing injectors went a way but occasionally it will surge a little and my tachometer is a little bouncy (I did change cam sensor just because) so I believe there might be slightly problem with my current ecm. I know it's stupid to spend money on having mine checked without any codes or major issues but I have that filling that something isn't right with it. Thanks for your input.

[Mopar1973Man]

Personally, I think you are being just a bit paranoid. 

 

Tach need may bounce because of the signal. So if the cluster gets a message that RPM is 810 RPM this second then next second its 790 RPM now the stepper motor in the tech is going to step down. Then if it rises again then it will step back up again. Mine does the same thing but I don't sweat it. Quadzilla tach can jump 10-20 RPM in one second causing the jump.

 

Remember the Smarty will not program the tire size permanently. So when you return to stock the tire setting is lost. This is why I suggested the dealer. Then it can be permanent. 

[Dieselfuture]

16 minutes ago, Mopar1973Man said:

Personally, I think you are being just a bit paranoid

Thanks for explaining that a little bit better, and yes I tend to overthink stuff. 

[Mopar1973Man]

That's what we are here for to discuss these things and dispel myth and confusion.

[Dieselfuture]

So I went ahead and sent my donor ECM to https://autocomputerspecialist.com   to flush it so I can use it on my truck. I have my reasons for why I need 2 ECMs. When speaking with them on the phone  (Bob and Dee) very nice and helpful. I was further explained that they are one of few that are allowed to reprogram ECM, PCM etc. To work on different vehicles. I also mentioned  mopar1973man.com site and how latly few members here had good experience with them. They said that they also refer a lot of people to this site for abundance of information on Cummins vehicles and that @Mopar1973Man him self has spoke with them . Another thing I found out is that they can only enable 3/6cyl high idle  (cold idle) on automatics and not manual  so I guess I'll still need a smarty to activate mine, on a good side I gave them number on the radiator support sticker, where it said my ECM been flashed and it turns out to be latest flash. 

Bottom line is for $150 plus I paid $18 in shipping to them I'll have a spear ECM that couldn't been done at dealer. This is their sale price. They actually have reman ECMs right now for $700 programmed to your vehicle, all you need is send your core back. Also they informed me not all ECMs can be flashed to work on all trucks, so they recommend calling them first and given them all the info before sending anything in. Unless you just sending yours for a repair, then you fill out some questions/info and you're good. I got lucky and my truck built date is 10-01 and donor was 07-01 even 3 mouths apart software is different, but for testing purposes they said I could plug it in and at least start the truck, but was not recommended to drive loke that. 

[SilverMoose]

@Dieselfuture you can get a programmer from hypertech that will enable you to change tire size. I have one and check it with gps.  As my tires wear down I can adjust the size.  All it does is tire size and gear ratio. It's about $200. The nice thing about having it is if you decide to change tire size you can save cash by not having to go to dealer.

 

L8tr

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