hey, I just installed fujita dual intake ( sounds so goooooood ) do I have to reset my ECU? If so how?

 

I have the dual Stillen's. I always hear disconnect the battery. I never have done it myself maybe I should do it.

 

i always disconnect the battery, but you do have to reset the radio and all other presets.

 

You can alway try this:

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.

Accelerator Pedal Release Position Learning
Operation Procedure
1. Make sure that the accelerator pedal is fully released.
2. Turn ignition switch “ON” and wait at least 2 seconds.
3. Turn ignition switch “OFF” wait at least 10 seconds.
4. Turn ignition switch “ON” and wait at least 2 seconds.
5. Turn ignition switch “OFF” wait at least 10 seconds.


Throttle Valve Closed Position Learning
Operation Procedures

1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch is “ON”.
3. Turn ignition switch is “OFF” wait at least 10 seconds.
Make sure that the throttle valve moves during above 10 seconds by confirming the operating sound.

Idle Air Volume Learning (Throttle Position Learning)
It is better to count the time accurately with a clock.
Operation Procedures

1. Perform “Accelerator Pedal Released Position Learning”.
2. Perform “Throttle Valve Closed Position Learning”.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Conform that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
6. Repeat the following (steps 7a, 7b) procedures quickly five times within 5 seconds.
7a. Fully depress the accelerator pedal (HARD)
7b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the Check Engine Light (CEL) stops blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the CEL is ON.
10. Start engine and let it idle.
11. Wait 20 seconds.
12. Rev up the engine two or three times and make sure the idle speed and ignition timing are within the specifications.

 

wow i heard you uld just let it idle for 15 minutes and it relearns the AFR, is all that really necessary

 

NO!!! Just let the car idle for around 10-15min after you reconnect the battery and start the car...That method is hard to pull off correctly and I was told that it doesn't work half the time

 

ive been putting intakes on all of my past cars all i do is put the intake and let the car idle for 15 minutes. i dont even have to disconnect the battery

 

some cars you do, some you don't....When I had my s2000, it seemed if I didn't reset the ECU after a performance mod, the car acted crazy...Maybe you don't with the 07's....???....

 

If you don't reset the ECU the car will figure it out after a couple of drive cycles. Resetting the ECU (via unplugging the battery, the pedal method of resetting it does not work because it does not clear learned fuel trims IIRC, it just clears the CEL) is the quickest method.

 

well I did the battery thing, and let the car run for 15mins. seems to Run a lot better

 

good info...posting for later reference

 

let the car idle for 15mins?

 

is it important to do it on the 05 models too? even though they arent dual intake?

 

always reset it

 

Please tell me you're not serious.

You're NOT SUPPOSED TO LET YOUR CAR IDLE THAT LONG.

As far as resetting the ECU, it's MUCH easier to just disconnect the battery while you take a dump, then hook it back up. Or, you can do the ECU reset trick (I had that **** down to a science). Not sure it it's the same on the HR as the DE though. I guess someone can try and confirm that.

 

yeah what he said

 

The PCM will re-learn the fuel trims either way. Resetting it is an urban myth. There are tables used to calculate fuel trims and each block gets relearned depending on drive cycles and how many times a particular block is requested. The blocks you use the most, will be relearned fastest, naturally.

Most people think reset the PCM, then drive the car hard because they think it made a difference. So, they spend all their in those blocks, which it learns first. This gives the false illusion that it makes a difference.

Just install the intakes, drive the car, and all will be well. Modern PCMs are surprisingly adaptive

 

One Can Only Gain Life Once He He Has Given His Life Away.

 

+10000

 

will this reset a turbonetics tuned ecu back to stock?