2010 Ram 5.7 vvt will not respond to fueling changes

[SRTRhino]

I'm currently trying to tune my buddies Ram that he put a cam (219/226 FRP SCUD plus) into and I cannot get this thing to respond to any fueling changes whatsoever. He claims to have a 91mm throttlebody and he also has shorty headers. I have tried adjusting the Injector pulse width tables with NN on to no avail. I've tried adjusting the VE table with NN off with no luck. I've disabled VVT as I read on a couple of pages here the 09-10 need VVT disabled to turn NN off. I've tried adjusting injector pulse width tables with NN and VVT off. I can not get it to respond to any fueling changes I make at all, its around 20-30% lean driving around and when I add that to the VE tables in the appropriate cell and relog after upload, its the same percentage lean.

Resetting adaptives has no effect either. Am I missing something simple or is this a bigger issue? I have not gotten around to tuning WOT, have just been trying to focus on part throttle.

Appreciate any help I can get, its got me thrown for a loop.

[f.creek-ranch]

sounds crazy.

I would set the cam and enabled all. Then set injectors.

Try the beta VCM.

And remember ...exhaust max must be over exhaust lockpin.

Sometimes its a little thing, that doesnt fit.

Look into log, if the cam is in range and set desired angle table from exhaust cam

[edcmat-l1]

Post a data log and the specific tune file that correlates. Don't get over complicated about it, just tune and data log that go together.

One step at a time.

[SRTRhino]

Post a data log and the specific tune file that correlates. Don't get over complicated about it, just tune and data log that go together.

One step at a time.

These 2 logs were back to back with VE adjustments made and the fuel trims basically had zero change.. Normally VE tuning is easy but this one just refuses to cooperate.

[Slidn]

These 2 logs were back to back with VE adjustments made and the fuel trims basically had zero change.. Normally VE tuning is easy but this one just refuses to cooperate.

Following. I've ran across the same issue with my 300. I don't know what is wrong but the car refuses to respond to VE fueling changes. I put the car into open loop, but regardless of how many edits I've made it claims the car is 20% over fueled

[SRTRhino]

Following. I've ran across the same issue with my 300. I don't know what is wrong but the car refuses to respond to VE fueling changes. I put the car into open loop, but regardless of how many edits I've made it claims the car is 20% over fueled

What year 300?

[Slidn]

2011 300c AWD that got the 392 treatment and a TSP cam.

[edcmat-l1]

These 2 logs were back to back with VE adjustments made and the fuel trims basically had zero change.. Normally VE tuning is easy but this one just refuses to cooperate.

If you look at both of those logs you posted in plotted graph form you'll see there's a significant difference in the trims. They're still positive but you've made a difference in how much. You need to graph them just like in the screen shots then copy the data and go to your VE and paste/multiply by 50%. Wash rinse repeat.

[edcmat-l1]

Following. I've ran across the same issue with my 300. I don't know what is wrong but the car refuses to respond to VE fueling changes. I put the car into open loop, but regardless of how many edits I've made it claims the car is 20% over fueled

Start your own thread. Post a data log or logs and a tune file or two. I'm sure it's operator error.

[SRTRhino]

If you look at both of those logs you posted in plotted graph form you'll see there's a significant difference in the trims. They're still positive but you've made a difference in how much. You need to graph them just like in the screen shots then copy the data and go to your VE and paste/multiply by 50%. Wash rinse repeat.

I ended up reverting back to the bolt on file I made for it 2 years ago and starting fresh from that. Fueling is working as expected now, not sure if file got corrupted or what but its working now so all good. Thank you for the input

[edcmat-l1]

I ended up reverting back to the bolt on file I made for it 2 years ago and starting fresh from that. Fueling is working as expected now, not sure if file got corrupted or what but its working now so all good. Thank you for the input

It was working before. You can clearly see it in the 2 screen shots I posted. The majority of the table is 10%-20% different. Fueling was working as expected before whether you want to admit it or not.

[SRTRhino]

It was working before. You can clearly see it in the 2 screen shots I posted. The majority of the table is 10%-20% different. Fueling was working as expected before whether you want to admit it or not.

I promise im not incompentent lol, I've had the truck a day or so and the fueling wouldn't cooperate. All is working as it should now though. I did go back and look at those logs fueling wise and while the 2nd one was different, it wasn't where I think it should have been given I multiplied the VE table by % and not % half. I appreciate you taking the time to help me out. Its running and driving now with fueling within 5%.

[edcmat-l1]

I'm currently trying to tune my buddies Ram that he put a cam (219/226 FRP SCUD plus) into and I cannot get this thing to respond to any fueling changes whatsoever.

I can not get it to respond to any fueling changes I make at all, its around 20-30% lean driving around and when I add that to the VE tables in the appropriate cell and relog after upload, its the same percentage lean.

These 2 logs were back to back with VE adjustments made and the fuel trims basically had zero change.. Normally VE tuning is easy but this one just refuses to cooperate.

If you look at both of those logs you posted in plotted graph form you'll see there's a significant difference in the trims. They're still positive but you've made a difference in how much. You need to graph them just like in the screen shots then copy the data and go to your VE and paste/multiply by 50%. Wash rinse repeat.

I ended up reverting back to the bolt on file I made for it 2 years ago and starting fresh from that. Fueling is working as expected now, not sure if file got corrupted or what but its working now so all good. Thank you for the input

I promise im not incompentent lol, I've had the truck a day or so and the fueling wouldn't cooperate. All is working as it should now though. I did go back and look at those logs fueling wise and while the 2nd one was different, it wasn't where I think it should have been given I multiplied the VE table by % and not % half. I appreciate you taking the time to help me out. Its running and driving now with fueling within 5%.

Yeah OK LOL