Archived revs up slowly no matter what I do to the pedal

[Weidner]

Been fighting this thing for two weeks now. The truck will rev up very slowly no matter how far I have my foot into it. Then when I let off the accelerator, it gives a little burst before it goes back to idle. When I can get it up to speed on the road, the cruise control works fine and I can use that to control acceleration and maintain speed. I have fed it a apps and a map sensor, just put in new batteries and I have checked the grounds off the battery and every one to the frame or chassis I can find. - I have not touched the ecu ground to block yet, thats my next step. How do you guys get that thing out?- or can I add a jumper ground from the ecu to the battery? It looks pretty tough to get to the ecu for removal.



Codes set are 236, 522 and 122 I have searched everything with no sucess and I don't know what to do next. Anyone have any suggestions.



(fuel pres and filter are good)

 

[Weidner]

I think a ground fixed it...

I think I got the truck fixed last night. I added a ground wire to the ecm from the battery and it started and reved up as it should. I could not give it a test drive, after adding the wire to the batt cable clamp, the clamp broke as I tried to reattach it good and tight. today I will replace that clamp and hopefully be leaving a trail of black smoke on down the road.

 

[TurboDog]

How did the test drive go? Did the ground wire fix everything? Inquiring minds want to know! I hope so!

 

[Weidner]

Test drive went one block. I think maybe this is a short somewhere. I am going to ask a dodge tech I have met to see if he wants to fix it, or guide me in a direction. Its funny that I got it to run in the garage, then once on the road no go and I have not gotten it to run in the garage again. Whatever- I am at the end of my rope, anyone want to deliver my wife a christmas tree... I guess its off to borrow a ford from my brother. Its sad.

 

[TurboDog]

Hate to hear the news, I am still planning to take mine in over the holidays and get it scanned to see what is causing the boost foolers to screw it up. I am just leaving well enough alone for now, since it is running ok without them.

 

[Weidner]

I am heading to a dealer today to ask about getting it in, or having a guy work on it on the side.

 

[2-ND TIME]

What did they find?????

What did they find with your truck? I suspect that the APPS has gone south. Please keep the old one and give us the info on it. The no throttle up to me sounds like the off-idle isn't working. Keep inquiring.

 

[Weidner]

We tried another apps, no luck. Star hotline directed the tech to the ecu. New one should be in come Monday. Ill let you know.

Randy

 

[2-ND TIME]

Apps

Did you test the new or replaced APPS? The contact resistance should be < 125 ohms. On off-idle 1/2 and idle 1/6 have measured many and they are bad bad bad.

 

[Weidner]

I did not test it myself. I had pervious problems losing all throttle and setting apps codes, then I could restart the truck and it was all fine. Thats why I thought this problem as related to the apps. I have not heard yet today. It would not suprise me if all 3 apps that have been in the truck are bad and the dealer is not testing them correctly. We will see, hopefully soon.

 

[Weidner]

FIXED!!! New ECM did the trick. Merry Christmas to me, thanks for the bill. At least I have my truck back.

 

[TurboDog]

Sorry about the ecm, but thanks for the update. I will remember that in case my problems come back again.