tomro99

iTrader: (4)

Alright guys i made a big mistake aha. I came across the ecu reset a couple days ago here on the forum (procedure where you depress and let go of the gas peddle etc..). Went ahead and did that since i read i should do it after putting a new mod on the car (put on tanabe medallion a couple weeks ago). Anyways, after the ecu reset, the car seems to be sleeping. I first noticed this when my exhaust was muuuuuch quiter. When i first put it on, it would roar! I would give a little gas and it was loud. Now, the thing is dormant. Not nearly as loud as it was before the ecu reset. Also, my acceleration is not there anymore. Before, i would give gas and the car would go. It pulled nicely. Same with M mode. When i would use the paddles, in every gear, the car was waiting for me to give it gas for it to fly. Now, not so much. I put it in M mode and the thing is laaazy. It doesnt have the "umph" in it anymore. PLain and simple, it doesnt want to go. Makes me sad cause it was so much fun doing pulls. Also, the tanabe i bought was used already so "maybe it broke in so it got quiter" is out of the question. It is for sure the ecu reset. I regret it. So my question is, anyway to get rid of this? Revert back to what it was before the ecu reset? Any input would be greatly appreciated. Thanks fellas.

weird60625

bring it to dealer ... good luck

kaoticdemize

iTrader: (2)

pretty sure your car just has to relearn itself, give it some time. Seeing how you have an 08 it was adjusted to aggressive driving, now you reset it.

kaoticdemize

iTrader: (2)

Dealer wont do anything, he did his own reset, nothing they can do about it.

BluestickG

iTrader: (5)

an ECU reset would not change how the car performs. Something else is going on...I have reset mine 10s of times and it this never happened

1BAD2012IPL

iTrader: (1)

DEFINITELY have something else going on

tomro99

iTrader: (4)

so something else going on? i have also have this problem that i forgot to mention. this happens quite frequently. when i start my G, the rpms barely go over 1000 and then the rpms drop a bit and struggl to stay above the 1000 mark. Right after this, the car shuts off. After i turn the car on and the engine starts, in order for me to keep the engine running, i have to give it gas and then it stays on. But a lot of the time when i dont give it gas, the rpms struggle and the car shuts off.

But even when this was happening, the car still drove like a beast. Its after the ecu reset that the car is feeling very sluggish.

Skyline6mt

iTrader: (1)

The whole point of an ecu reset is to have the car get reaccustomed to your driving style and mods. drive it hard for a few days after the reset and you'll have some good response/speed/volume

Robert Green

Need new spark plugs? Idk

BluestickG

iTrader: (5)

Sounds like it could be a lot of different things...I would take it to the dealership or a specialist. Its hard to diagnose over just text. But thats definitly not normal.

Ken

iTrader: (2)

You need a minimum of at least 50 miles before the ECU sets itself.

_ant_

iTrader: (4)

bring it to the dealer

tomro99

iTrader: (4)

so should i not take it to a specialist? should i reset it again and within those 50 miles, drive t really relly hard? or should i just drive it hard now an forget about resetting it again?

1BAD2012IPL

iTrader: (1)

Try cleaning the throttle bodies and the mass air flow sensors, the car may be trying to re-learn with these components dirty may be causing the problems you have. Hope this helps

TVPostSound

iTrader: (9)

You sure you dint do this by accident, and messed it up??



Accelerator Pedal Released Position Learning
DESCRIPTION
Accelerator Pedal Released Position Learning is an operation to learn the fully released position of the accelerator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time harness connector of accelerator pedal position sensor or ECM is disconnected.

OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.

Throttle Valve Closed Position Learning
DESCRIPTION
Throttle Valve Closed Position Learning is an operation to learn the fully closed position of the throttle valve by monitoring the throttle position sensor output signal. It must be performed each time harness connector of electric throttle control actuator or ECM is disconnected.

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


Idle Air Volume Learning
DESCRIPTION
Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific range. It must be performed under any of the following conditions:
Each time electric throttle control actuator or ECM is replaced.
Idle speed or ignition timing is out of specification.
PREPARATION
Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
Battery voltage: More than 12.9V (At idle)
Engine coolant temperature: 70 - 100°C (158 - 212°F)
Park/neutral position (PNP) switch: ON
Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is started, the headlamp will not be illuminated.
Steering wheel: Neutral (Straight-ahead position)
Vehicle speed: Stopped
Transmission: Warmed-up
For A/T models with CONSULT-II, drive vehicle until “ATF TEMP SE 1” in “DATA MONITOR” mode of “A/T” system indicates less than 0.9V.
For A/T models without CONSULT-II and M/T models, drive vehicle for 10 minutes.


OPERATION PROCEDURE


It is better to count the time accurately with a clock.
It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit has a malfunction.
1. Perform EC-42, "Accelerator Pedal Released Position Learning" .
2. Perform EC-42, "Throttle Valve Closed Position Learning" .
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
7. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
10. Start engine and let it idle.
11. Wait 20 seconds.
12. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.