Learning process of Mopar PCM

[vincy]

We put the new Mopar PCM in our 2008. The engine sound is that of a dutuned engine and the throttle response is slow. Does it take time for the new PCM to adjust? There is about 40 miles on the PCM and I may feel some improvement in the last few miles. Thanks

 

[Gary Weeks]

We put the new Mopar PCM in our 2008. The engine sound is that of a dutuned engine and the throttle response is slow. Does it take time for the new PCM to adjust? There is about 40 miles on the PCM and I may feel some improvement in the last few miles. Thanks

It says in the instructions 20 to 30 miles. Mine seamed fine after about 10 or 15 miles. Did you install it or the dealer? It says the electronic throttle control (ETC) system requires ETC relearn procudure to be performed when installed. This porcedure checks the accelerator pedal position sensor (APPS) to make sure that idle and full pedal travel can be reached on both sensors. Failure to preform the (ETC) relearn will cause the throttle not to respond to the accelerator pedal limiting engine output.

 

[BennyBad]

had mine installed yesterday and no issues, cars throttle now feels like my 06 bumblebee did quick and responsive. the more you drive it the more it will learn but what your describing doesnt sound right.

 

[RayC]

cars throttle now feels like my 06 bumblebee did quick and responsive.

I agree, throttle response is greatly improved in my car also!!

 

[X-Metal]

We put the new Mopar PCM in our 2008. The engine sound is that of a dutuned engine and the throttle response is slow. Does it take time for the new PCM to adjust? There is about 40 miles on the PCM and I may feel some improvement in the last few miles. Thanks

did you take it to your dealer and have them learn the throttlle position process? BEFORE you drove car

 

[vincy]

did you take it to your dealer and have them learn the throttlle position process? BEFORE you drove car

I don't know if the car was driven before the calibration. I'll call and ask.

 

[vincy]

Here's an update on the PCM. The engine sound has changed a lot and is now more agressive and louder. The throttle response is better and it has more torque driving around town. I haven't gotten on it but the engine is transformed. So in my case it took about 70 miles for the PCM to settle in.

 

[Viper X]

I'd guess that every engine is a bit different.

In my case, the car sounded like it had bee de-tuned or was running with ******** timing for the first 100 or 200 miles. I did have calibration and "re-learn" procedure done and have been running race gas at a 50 / 50 mix.

It has improved every time I drive it. It now has about 500 miles on the Mopar race computer (about 250 track miles) and the car sounds and runs like a ***** ape.

Be patient and drive the car like you want it to run.

Dan

 

[vincy]

I'd guess that every engine is a bit different.

In my case, the car sounded like it had bee de-tuned or was running with ******** timing for the first 100 or 200 miles. I did have calibration and "re-learn" procedure done and have been running race gas at a 50 / 50 mix.

It has improved every time I drive it. It now has about 500 miles on the Mopar race computer (about 250 track miles) and the car sounds and runs like a ***** ape.

Be patient and drive the car like you want it to run.

Dan

Will the tune change with driving style? Will harder driving improve the tune? Thanks

 

[mjorgensen Woodhouse]

If any of you are still thinking you have a drivability issue with the new PCM call or Email me a fax number and I will send you an updated install procedure that may help your dealer remedy any possible issues.

 

[99FRC]

I'd guess that every engine is a bit different.

In my case, the car sounded like it had bee de-tuned or was running with ******** timing for the first 100 or 200 miles. I did have calibration and "re-learn" procedure done and have been running race gas at a 50 / 50 mix.

It has improved every time I drive it. It now has about 500 miles on the Mopar race computer (about 250 track miles) and the car sounds and runs like a ***** ape.

Be patient and drive the car like you want it to run.

Dan

Why do you use a race fuel mix on a stock motor? Is there any benefit?

 

[Viper X]

99FRC,

Mopar race computer for 08 / 09 is set up for 93 octane. In the Peoples Republic of Kalifornia, we can generally only buy 91 octane (unless we are at the track).....

..... and, according to DC Performance, he's seen better dyno numbers at about 95 octane, so I buy 1/2 tank of 100, 1/2 tank of 91 while tracking or running the car hard. This is working well so far.

Mark,

Please email that updated procedure to me and I'll pass it around locally.

Thanks,

Dan