Do I need a MOPAR PCM?

[TexasTonka]

Looking for a replacement Gen IV, when I do headers, cat delete and exhaust on the Gen IV do I need to run a MOPAR PCM? Is there anyone who sells a O2 simulator? Any advantage to the MOPAR PCM other than the CEL light?

[FLATOUT]

Since you're doing everything over I would go with HPTuners.

[jvm728]

I went with the Mopar ECU but I wanted something simple and the HPtuner stuff just came on market. I'm happy. No skip shift and no CEL, lots of power. All is well

[venomous08]

You also get some of the throttle delay out of the system as well.

[TexasTonka]

Would like to stay with factory PCM in the short term. Can I run my full exhaust without MOPAR PCM or HP Tuners?

[01sapphirebob]

If I rememebr correctly it was hit or miss with the GEN IV's when it came to doing the full exhaust/ Some folks had issues without the PCM and some did not. I believe the full belanger system W/cats would bo o.k. without the PCM but if you went catless you are gonna need the PCM.

[FLATOUT]

Slowhatch ran balengers with cats which isn't supposed to throw codes, but his did.

[Late Apex]

Would like to stay with factory PCM in the short term. Can I run my full exhaust without MOPAR PCM or HP Tuners? I stayed with the factory PCM and glad I did so as to not have to switch back and forth every year to pass Texas emissions. The answer is YES and I did the Belanger cat back with high flo cats into the Belanger cat back exhaust and NO CEL issues, BUT I also had it done right by Morgan at Tomball Dodge.

[IndyRon]

Would like to stay with factory PCM in the short term. Can I run my full exhaust without MOPAR PCM or HP Tuners?

Yes, you can likely run it, although as some have mentioned you may end up with CEL's. I personally ran my factory PCM with no issues with a Gen 5 intake and smooth tubes. Even if you don't get CEL's, you will be significantly down on power over running the Mopar or HPtuners unit. The factory PCM, doesn't like to see anything outside factory airflow parameters, especially above 5k rpm and cuts power significantly via timing/fuel table modification.

[slowhatch]

If I rememebr correctly it was hit or miss with the GEN IV's when it came to doing the full exhaust/ Some folks had issues without the PCM and some did not. I believe the full belanger system W/cats would bo o.k. without the PCM but if you went catless you are gonna need the PCM.

Nope. My catted Belanger system threw a CEL, so it's hit or miss.

[Dusty1]

Kirt:

I pulled my track ECU when I went with the HPtune so its available if you need it. Sorry for the loss of your car but glad you guys are ok.

Richard

[Victxv10]

Looking for a replacement Gen IV, when I do headers, cat delete and exhaust on the Gen IV do I need to run a MOPAR PCM? Is there anyone who sells a O2 simulator? Any advantage to the MOPAR PCM other than the CEL light?

My 08 with Belanger headers and H/F cats had CEL all the time until I installed the Mopar controller. The headers/exhaust were installed by Ben's mechanic, so I know they were done right. So I think as others have said, it depends on the car. My car is an 08, Late Apex has an 09???

Not sure about the O2's, check with Dan Cragin. The Mopar PCM has been shown to create some power,(8-10HP), throttle is supposed to increased a little(haven't really noticed, still lags) and skip shift is removed.

Good luck on the hunt for new one!!
Murray

[TexasTonka]

Thanks guys- appreciate the input.

Going from the car I had a bone stock car may be a huge eye opener- may be looking at doing all this the first weekend. Have my ear to the tracks for used exhaust system stuff too if anyone hears of anything. Would have been nice to be able to get the tens of thousands of added parts off the Hennessy car.

Richard, we are able to move a bit better this week, anything you can walk away from is okay in my book, I may take you up on that track PCM- will have to verify with Jaime if we can use it on a new VIN.

[red heat]

Looking for a replacement Gen IV, when I do headers, cat delete and exhaust on the Gen IV do I need to run a MOPAR PCM? Is there anyone who sells a O2 simulator? Any advantage to the MOPAR PCM other than the CEL light?

I had my mopar PCM on my 09 ACR for 4 yrs and it was great. unfortunately, the car WILL FAIL emissions. when I swapped it out for the stock PCM , it took about a year of driving (1700 miles!!!) for the stock one to reset. very frustrating. numerous wasted trips to emissions, dealers. won't be going thru that again

[01sapphirebob]

Thanks guys- appreciate the input.

Going from the car I had a bone stock car may be a huge eye opener- may be looking at doing all this the first weekend. Have my ear to the tracks for used exhaust system stuff too if anyone hears of anything. Would have been nice to be able to get the tens of thousands of added parts off the Hennessy car.

Richard, we are able to move a bit better this week, anything you can walk away from is okay in my book, I may take you up on that track PCM- will have to verify with Jaime if we can use it on a new VIN.

The MOPAR PCM is transferable from body style to body style. For example...if you have a coupe and het a used PCM from another coupe you are ok. If the PCM came form a vert there woukd be an issue. It has to do with the window drop feature.

[FLATOUT]

Morgan also installed Slowhatch's.


I stayed with the factory PCM and glad I did so as to not have to switch back and forth every year to pass Texas emissions. The answer is YES and I did the Belanger cat back with high flo cats into the Belanger cat back exhaust and NO CEL issues, BUT I also had it done right by Morgan at Tomball Dodge.

[JonB ~ PartsRack]

Looking for a replacement Gen IV, when I do headers, cat delete and exhaust on the Gen IV do I need to run a MOPAR PCM? Is there anyone who sells a O2 simulator? Any advantage to the MOPAR PCM other than the CEL light?

YES.

NO.

YES.

Call anytime ! Glad U R doing better

[TexasTonka]

YES.

NO.

YES.

Call anytime ! Glad U R doing better


Thanks Jon- I'll give you a call next week. Right about time for those Black Friday door buster deals on all the parts on my list right? :fpopcorn:

[mjorgensen]

Looking for a replacement Gen IV, when I do headers, cat delete and exhaust on the Gen IV do I need to run a MOPAR PCM? Is there anyone who sells a O2 simulator? Any advantage to the MOPAR PCM other than the CEL light?

If you end up needing a PCM I always have them on the shelf. The increased (perceived throttle response) is just because the A/F is so much better that you get a nice crisp response, the throttle tables were never changed from the factory PCM.

[jvm728]

If you end up needing a PCM I always have them on the shelf. The increased (perceived throttle response) is just because the A/F is so much better that you get a nice crisp response, the throttle tables were never changed from the factory PCM.

good to know on throttle tables. i never realized how horrible it was until i finished my build and started driving mine more. its really embarrassing.

[FrgMstr]

good to know on throttle tables. i never realized how horrible it was until i finished my build and started driving mine more. its really embarrassing.


Yep, throttle response is horrible on the stock ECU. I was working with Torrie on mine, but then had car issues that I needed to get fixed. But while we were working on it, Torrie's tune gave the car much better response than the Mopar ECU. I am looking forward to working again with him soon on this. Getting a new Dyno done this week so I know my baseline hp/tq on the Mopar before I move forward.

[Magnus]

If you don't want to tune the car yourself and just want a drop in solution, you're much better off purchasing a HP Tuners PCM/Kit from one of the supporting vendors of this forum.

Not only will you get a ECU that can make great gains, but you also will have the ability to make changes/adjustments throughout the life of the car as the mods on the vehicle change.

[tmcphail]

If you don't want to tune the car yourself and just want a drop in solution, you're much better off purchasing a HP Tuners PCM/Kit from one of the supporting vendors of this forum.

Not only will you get a ECU that can make great gains, but you also will have the ability to make changes/adjustments throughout the life of the car as the mods on the vehicle change.

Quite true, I can assist you when you get to that point. Link :

http://www.unleashedtuning.com/content/view/72/17/

[FastMatt]

Quite true, I can assist you when you get to that point. Link :

http://www.unleashedtuning.com/content/view/72/17/

Is that you are selling there just the HP tuners program or a "mail order" tune with the HP tuners program?

[tmcphail]

I sell the system with a Custom tune all together.

[Victxv10]

I sell the system with a Custom tune all together.

How much HP gains are you getting out of Gen4 cars with headers/hf cats?

[tmcphail]

All of the work I did here on my 2010 was with hi flow cats and stock headers. Adding headers into the equation would net higher results and I can make it all work together properly.

http://www.unleashedtuning.com/content/view/72/17/

[Late Apex]

Morgan also installed Slowhatch's. He put the FASThatch on mine but then again its 90 percent driver and 10 percent car and power.;)