So I want to take off the MAFT translator I am using, however if I remove it the car runs like crap. What do I need to reset after removing it to have the car relearn the non-MAFT settings again?

Thanks!

 

Why do you want it off?

If you want to..... reset the PCM.

Pull the battery cable for about 10 minutes. Then reinstall.

Then do an Idle Relearn.

Idle Learn Procedure
Idle Learn Procedure
Anytime the powertrain control module (PCM) or the battery is disconnected, the PCM loses power, or the PCM is reprogrammed, the PCMs learned idle position is lost. The engine idle is unstable when the learned idle position is lost.

Perform the following procedure in order to return the learned idle to the correct position:

Automatic Transmission
Turn OFF the ignition.
Restore the PCM battery feed.
Turn OFF the A/C controls.
Set the parking brake and block the drive wheels.
Start the engine.
Ensure that the engine coolant temperature is more than 80°C (176°F).
Shift the transmission into Drive.
Allow the engine to idle for 5 minutes.
Shift the transmission into Park.
Allow the engine to idle for 5 minutes.
Turn OFF the engine for 30 seconds.


Manual Transmission
Turn OFF the ignition.
Restore the PCM battery feed.
Turn OFF the A/C controls.
Set the parking brake and block the drive wheels.
Place the transmission in Neutral.
Start the engine.
Ensure that the engine coolant temperature is more than 80°C (176°F).
Allow the engine to idle for 5 minutes.
Turn OFF the engine for 30 seconds.
:smash:

 

Are you saying that there is no other way to do a PCM reset without removing the battery lead? What about all the other settings? What about the radio, etc ... isn't there a sequence of steps that can be performed inside the car to make this happen?

Thanks!

 

1) Insert key into ignition and turn to the "On" position but, DO NOT START THE ENGINE.

2) Pop open the fuse box cover and remove the two 10amp fuses from position numbers 16 & 23.

According to the manual there are 2 fuse boxes. Use the engine compartment fuse block for this procedure.

Instrument Panel Fuse Block (wrong one): 16 is Air bag and 22 is Body Control Module - Ignition and 23 is Body Control Module - Ignition 2.

Engine Compartment Fuse Block (correct one): 16 is Powertrain Control Module A and 23 is Powertrain Control Module B.

Note. Your DIC will now display "check" messages for ABS, etc... Do not worry. This is normal.

3) Go back to your cockpit and turn your key to the "Off" position.

4) Return to the fuse box and re-insert both 10amp fuses for positions 16 & 23.

5) Go back to your cockpit and start your engine. Allow engine coolant temperature to reach a minimum of 176 degrees F. Allow engine to run at this minimum temperature for at least 5 minutes.

6) After a minimum of 5 minutes, at 176F, shut down engine and let rest for a minimum of 30 seconds.

7) Restart engine - check for DIC error codes (there should be none).

8) Drive car for a minimum of 30 miles at varying rpm settings and speeds. PCM will now re-learn and adjust for the new air flow and air temperature at the intake.

If error codes persist, repeat steps 1-7. Make sure fuses are properly inserted before repeating steps. Do not void the sequence outlined above. If you do, restart sequence from scratch.

Steps 1-4 are also necessary if you ever disconnect your battery or lose power for any reason.

 

AWESOME!!! Thank you very much!!!

:cheers: :D :cheers:

 

Chuckster... this may be a stupid question for most.. but what would be the result if this process was not followed after a loss of power or after disconnecting the battery?

 

It may learn an "incorrect" position. Might result in a bad idle...

Actually, after I did mine, my motor idled better and did not pop and crackle as much on the decelaration... :D

 

:confused:

 

Sorry I confused you...
But seriously... I can attest. My car idled like crap for months. Upon decelaration it popped loud and actually sounded like gunfire coming out of my exhaust...Same thing others have complained about...

Coincidently,
After I "read" my PCM with LS1-Edit my car threw the TAC code 10 seconds after I drove down the driveway. I saw the code was Throttle related and just decided to do a complete Idle relearn.

After that...The car idled dead smooth and the deceleration gunfire was eliminated. Still that cool muffled gurgle pop sound. But not those embarrasing gunfire sounds...Even my 14 year old noticed the difference

So my point is....The PCM obviously was hanging on to some crappy setting that it refused to "learn out" And this was cured by a complete Idle relearn.. Besides.. What harm can come from letting it sit for 5 minutes?

 

I think brialex42's question was about all the monkey motion with batteries and fuses, not an idle relearn.

 

Doh. My bad... :bb