Jump to content
  • Welcome To Mopar1973Man.Com

    We can see that your guest and been lurking about. When you register on the Mopar1973Man.Com site you'll be able to interact with all the other members. This is the most friendliest Cummins forum you'll ever join. Take the time right now and  REGISTER  on the Mopar1973Man.Com this will open up many more options and functions on the website. Everyone is very friendly and helpful just ask questions and everyone will help you out the best they can. 

Sign in to follow this  
cumminspwr1985

Dead pedal?/delayed throttle response

Recommended Posts

I own a 2002 ram 2500 6 speed with the HO cummins, 145k, recently i was pulling my equipment trailer and upon taking off from a stop sign had what felt to be a dead pedal/poor throttle response, taking 2x-3x as long to get up to around 2000rpm than it normally would. Slight bucking would occur but more of the issue is the slow throttle response. No matter where the pedal position is, there is no change in throttle response, its just a matter of slowly building rpms. Even though the throttle response is slow, the truck will get up to 3500rpm. I did have a garage do a diagnostic on it and they claimed fuel pressure from the lift pump was sufficient. There is no excess exhaust smoke. The truck starts and idles well. Codes thrown are the following: P PCU 0122, 1693 P ECU 0236, 0122, 1693. I have already installed a new fuel filter. Resistance and voltage pertaining to the apps sensor were taken and were found to be outside the specified range so as to determine that the apps sensor was no good. Installed new apps sensor and problem still exists. Looking for any input. Many have told me that theyre leaning to a VP44 but arent exactly sure. Thanks guys. As this is my first post, i hope that i have been thorough enough with details, let me know if i have missed any. chris

Share this post


Link to post
Share on other sites

I've already had a long conversation on the phone with you... :cool: But my thoughts of this is the fact the P0122 code is the cause but I'm thinking its wiring issue since the APPS was replaced... Anyone else got any ideas? :shrug:

Share this post


Link to post
Share on other sites

P0122 Accelerator Position Sensor (APPS) LowAPPS Voltage Input Too Low 0236 Turbocharger Boost Pressure Sensor Performance / Rationality This sounds just like what is happening to me... What are your egt #'s?

Share this post


Link to post
Share on other sites

I can look at my egt readings, at what point should i monitor them, ie, length of run time, certain rpm range, etc? Michael, havent had much time to go through any wiring yet, but im gonna plug away at it and hope for the best. Interestingly, my local dodge dealer said that when the map sensor is replaced, they also sell a rewiring kit. Im not sure where i would find service bulletin information for the map sensor replacement or if there was a recall or something with map sensor wiring, being that they told me to also replace the wiring with the sensor, dont know if you have ever heard of that. Thanks again for your help. Ill keep ya posted.

Share this post


Link to post
Share on other sites

You mean like this... 2002 MAP on the left and 2001 MAP on right Then the adapter cord in the background.post-2-138698167368_thumb.jpg 2002 MAP on the left and 2001 MAP on right Then the adapter cord in the background.post-2-138698167361_thumb.jpg 2001 Map Sensor and the adapter cord...post-2-138698167355_thumb.jpg Yeap I got one on my truck now...:thumbup2:

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Donation Goals

    Mopar1973Man Medical Bills

    If you want to donate to Michael Nelson medical bills. Any fund donated here will be directed toward the medical bills and getting them paid. 


    30%
    $150.00 of $500.00 Donate Now


×
×
  • Create New...