[SmknDezl]

2018 TA 5.7 w/ 6 Spd

its weird, my idle likes to hang like a half way stuck throttle when I rev it up to 3-4000 rpms. i took it to Dodge for a check, they said it was part of the computer programming from the factory?

been thinking about getting an unlocked pcm in prep for my ProCharger set up. Definitely want to get rid of this idle if I can?

 

[ArchGE]

These cars are known for “rev. hang”. Annoying but normal.

Currently having a 426 stroker built with an F1 Procharger. Hope the rev. hang finally gets dialed out

 

[Rockster]

2018 TA 5.7 w/ 6 Spd

its weird, my idle likes to hang like a half way stuck throttle when I rev it up to 3-4000 rpms. i took it to Dodge for a check, they said it was part of the computer programming from the factory?

been thinking about getting an unlocked pcm in prep for my ProCharger set up. Definitely want to get rid of this idle if I can?

View attachment 265395

Have experienced this behavior with other cars. It is "normal" to help reduce emissions. Quite noticeable with my 2020 Scat Pack and its 6-speed.

Another behavior though not sure the Challengers have this -- have not "tested" this with my Scat Pack and I don't recall encountering this behavior with my Hellcat -- is if one slams the throttle to the floor the engine controller or electronic throttle control (drive by wire) will not open the butterfly in sync with the pedal.

This was most noticeable with my VW Golf TDi. I could actually get the engine to accelerate better by feeding it throttle as I felt it was able to handle more throttle. When I slammed the throttle to the floor the engine accelerated but at a more leisurely rate.

Given this was a diesel engine this was probably done to reduce particulate emissions by doing way with the "coal rolling" behavior often observed from older diesels or newer ones that have been modified to actually allow for "coal rolling" though God knows for what reason. I would think owner of one of these modified vehicles would want to try to keep a secret he's a dumbass not publicize it.

 

[10HORT]

Allowing the throttle blade to slam shut is a bad thing for emissions. It's like the big cold startup noise. It's to get the converters lit up to minimize emissions when the engine is cold.

 

[boyohboy]

I noticed that hang too. Thought I was going to blow my engine. I quit doing idle revs after that.

 

[09SRT0520]

These cars are known for “rev. hang”. Annoying but normal.

Currently having a 426 stroker built with an F1 Procharger. Hope the rev. hang finally gets dialed out

Did you get this issue fixed? I have a 416 with a d1x and the rev hang is horrible

 

[ArchGE]

Did you get this issue fixed? I have a 416 with a d1x and the rev hang is horrible

I did. Just had the car tuned for E85 and while it was in, my tuner said he would get rid of the hang for me. He said it needs to have a little bit but would tune out most of it. I haven’t had a chance to see the difference yet so am curious to see how it does when given the chance.

 

[09SRT0520]

I did. Just had the car tuned for E85 and while it was in, my tuner said he would get rid of the hang for me. He said it needs to have a little bit but would tune out most of it. I haven’t had a chance to see the difference yet so am curious to see how it does when given the chance.

I get very bad rev hang at normal driving. When I’m WOT it doesn’t hang at all really. I do have a Ported 95mm hellcat Tb and a Holley mid race intake manifold

 

[cdahl383]

It can be tuned out if you get a tune.

 

[09SRT0520]

It can be tuned out if you get a tune.

Cool cool, I’m having my tuner try to retune it next week. The original tune was $600 so I’m surprised it wasn’t tuned out on the first time he test drove

 

[09SRT0520]

 

[09SRT0520]

I did. Just had the car tuned for E85 and while it was in, my tuner said he would get rid of the hang for me. He said it needs to have a little bit but would tune out most of it. I haven’t had a chance to see the difference yet so am curious to see how it does when given the chance.

I have two dual 255lph Holley pumps and my tuner is saying I’m maxed at 670whp with those pumps. But I had a single pump before that was clearing 630whp, not sure if this affects rev hang at all? Being maxed on fuel pump

 

[ArchGE]

I have two dual 255lph Holley pumps and my tuner is saying I’m maxed at 670whp with those pumps. But I had a single pump before that was clearing 630whp, not sure if this affects rev hang at all? Being maxed on fuel pump

Something in the bowels of the software I think. I was out yesterday for a little romp and there’s still some hang on mine. Using the paddles seems to be the only way around it as far as I can tell.

 

[09SRT0520]

Something in the bowels of the software I think. I was out yesterday for a little romp and there’s still some hang on mine. Using the paddles seems to be the only way around it as far as I can tell.

I just got a lightning bolt error code while driving my manual pro charged challenger. I was in second gear and it popped up. Also the car feels like it luggs in second gear when driving semi slowly

 

[09SRT0520]

Something in the bowels of the software I think. I was out yesterday for a little romp and there’s still some hang on mine. Using the paddles seems to be the only way around it as far as I can tell.

Yeah I figured our cars will have a little hang which is no biggie. However, I’m wondering if this lightning bolt error code is associated with my rev hanging?

For instance, my rev hang happens in the lower gears like 1-3, and when I get the ETC lightning bolt code, it happens in gears 1-3 as well