[Armada4midlife]

Hey Ya'll,

I was reading the threads regarding installing cold air intake systems, IE: K/N Air filter/manifold combo's and I have seen some posts recommending to reset the ECU?? Will somebody please give me some guidance here. I recently installed the K/N California legal system on my 2005 LE and I do not recall in the instructions anything about resetting the ECU. Just how do you go about doing that if it necessary??? BTW I also put in a dual exhaust flow master 50 series system and with the two systems combined I have to keep from lighting off the tires whenever I have to jet into traffic. Certainly no loss in low end torque as some of the post I have read have mentioned.

 

[baseballfanz]

You don't have to reset your ECU, it will compensate for more air overtime. It's just reseting the ECU you can wipe it clean and it will learn right away.


ECU Resetting Procedures
Timing is extremely critical. If it is NOT DONE within the specify time, the ECU will not reset and the Check Engine Light (CEL) will continue to remain ON. A stop watch or an analog clock with a second’s needle will be useful.

Operations Procedures

1. Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds.
2a. Fully depress the accelerator pedal (HARD).
2b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the CEL starts blinking.
4. Fully release the accelerator pedal (while the CEL is still blinking)
5. Wait about 10 second.
6. Fully depress the accelerator pedal and keep it for more than 10 seconds.
7. Fully release the accelerator pedal (The CEL light will continue to blink).
8. Turn ignition switch to “OFF” position and now you can start the car. The CEL light should be gone.
If the CEL light continues to remain ON, repeat the above steps. Timing is EXTREMELY critical to resetting the ECU.

 

[Armada4midlife]

In step 6 is sounds like your totally winding out the engine for 10 seconds? Is that really OK to do?

 

[baseballfanz]

In step 6 is sounds like your totally winding out the engine for 10 seconds? Is that really OK to do?

Your engine is Never crank on. What they mean is turn to the "On" position.

 

[scr38]

I would NOT reset the ECM. It is not necessary.

 

[Armada4midlife]

Not Crank on! Ok now that makes more sense

 

[DBL047]

Would this reset the Check engine light also? And if I did this will I have to reset the clocks and everything or is it just to get rid of the check engine light?

 

[ShadyJC]

Or... you could just find someone with a Cipher tool to reset the ECU for you. A dealer could do it as well.

Or... you can just disconnect the battery as well.

 

[manny0]

Do you loose your Timing advances if you do this?

 

[Pops]

Do you loose your Timing advances if you do this?

No. I've read a lot of threads on it and it has to be rolled back intentionally using the same method as advancing it.