Hello...

K the following I read on the TL side, it's about resetting the ECU. I don't know if this has been covered here in the TSX world, but here goes. By resetting the ECU it helps with making the care more responsive with throttle response and helping with making the shifting of gears much better.

I noticed that my car was getting lazy on me and I pointed this out to the wifey and she agreed. I found myself having to punch it from a dead start when tyring to anything So tonight I decided to do the resetting and guess what?! It works. I barely step on the pedal and the car responds nicely and it just goes! It just brought a smile to my face which I still have.

So if you want give it a try. From what I understand this only works for Auto cars.

Here is the thread about this on the TL side: https://acurazine.com/forums/3g-tl-2004-2008-93/resetting-ecu-makes-me-happy-747662/

Happy Driving!

 

Actually did this today with my 04 tsx. My gas pedal feels softer if that makes any sense. Acceleration at low speeds is much better and it seems to take a little longer between shifts from 1st to 2nd.

 

i did it for the first time back in the summer after owning the car for 4 years..way better response on the pedal..considering how simple it is to do, i would do it at least once a year..you'll see posts if you search about people doing it after every oil change or every changing of the season but i think once a year is good enough but hey everybody has a personal preferance..our car is unique in its class i dont think there are any other cars out there that preform at the same level with the same kind of build, certainly none with a 4 cyclinder lol

 

Can't you just reset the ecu by disconnecting the battery? I've disconnected my battery a bunch of times, but haven't noticed any driving changes. Anyone have a detailed explanation for resetting the ecu if it's more than just disconnecting the battery?

 

just disconnect the NEGATIVE terminal for a couple minutes and you should be ok

 

Okay, someone with Hondata reflash want to try this? I'm guessing minimal change.

 

i did it and i have hondata...think of hondata as a software program..all resetting the ecu does is clear the memory, not delete the hondata program files

 

No kidding. And because the programming is different, perhaps they tweaked (or muted) the ECU programming's penchant for "learning" a diminished throttle response.

I tried it a moment ago before driving to work, I'll report here if I notice dramatic improvement.

 

NO change noted on a Hondata-reflashed ECU. YMMV.

 

Is this for automatics or manuals as well?

 

The ECU can also be reset by removing a certain fuse for a few seconds. Does anyone know which fuse this is?

 

I've done it on our '03 3.2TL and '04 TSX 5AT, and I haven't really noticed much of a difference. Truthfully, the TL seemed more responsive with very low-end throttles (feather-light touches on the pedal), though that could be my imagination. I don't see much diff. in my TSX. I am, though, about to change the spark plugs, and THAT might make a diff., considering I have 62k miles (the first 22k of which were racked up while the car was a service loaner.)

As a side note: always be nice to the dealer loaners. You never know when I might buy it. LOL.

 

I don't know the wiring, but according to the manual, p. 333, #8 under the hood is for the "FI ECU (ECM/PCM)." (And #22 says "Battery,"... does that mean pulling that 100A fuse is the same as disconnecting the battery terminal?) The #23 fuse inside (by the hood release) is for "IGP (PGM-FI ECU)." I'm guessing both of these would do it, but not knowing ... I'd just disconnect the battery. It's not hard, you only need a 10mm socket+ratchet, or wrench.

 

just be careful that you dont disconnect your battery around inspection time. you will fail inspection as your ecu monitors will not be ready. The only way to pass than would be to drive your vehicle a couple hundred miles to re-set the monitors.

 

Anyone else use the key method to reset the ECU not the battery.

From the TL forum...

The Throttle is "Drive By Wire" and adapts to your particular driving
style. Do a TBA Throttle body adaptation.

1. Get in your car, it doesn't matter if you close the door or not.

2. Turn the key to the on (not start) position, the position just before the starter
turns over.

3. Press the gas pedal to the floor with the key in the "on" position.

4. Hold the pedal to the floor for five seconds, then turn the key back
to the "off" position (don't remove the key), then release the gas
pedal.

5. Wait 2 mins. for a full alignment.

6. Drive the car as you always do.

Depending on your driving style, this may or may not be a big factor. I do a lot of city driving so
I noticed a big change after erasing my history. It is not hard to do this, just follow the instructions -

Key on, pedal down, 5 sec, key off pedal up, wait 2
minutes.

Keep the key in for the entire thing.

Seems to work on mine.