Papaman677

After reading this thread I decided to reset my ECU yesterday. It started out by bringing my TL to Autozone to have them test the battery. It seemed to be starting slower and with 55K on the odo. I figured it was going, but it checked out "good". Anyway, for a while my car seemed really sluggish and it was driving me nuts. Pulled off the negative for a few minutes, reconnected, and let idle for 10 min. Turned it off, restarted it and began to drive it hard. I can't believe what a difference it made. I question if it's just psychological thinking it really is quicker now b/c I did this. As far as remembering shift points, I'm sure that deals with the automatic. I have a 6MT, what does the computer "learn" as far as the shifting?

darksky

@papaman - since you have an M6, I don't think it does anything regarding shift points. It might be using a more optimal fuel:air ratio or something like that... tough to say.

Bearcat94

That would be correct. BUT Atrain says this does not occur in any event. And Atrain is THE MAN.

A brief search of Honda/Acura Tech articles does not produce documents to negate Atrain's assertation and it seems to me that Honda/Acura would flaunt it if they had it.

So, my statement was either from misinformation I recieved or a misunderstanding of something I was told or read - the AT apparently DOES NOT "learn" adaptive shift points based on driving style/habits.

SouthernBoy

Atrain hates me.

While clearly your knowledge is more in depth than mine, are you certain that the EEC-V didn't make it into the Mustang in '89? I do know that the '89 model received MAF instead of speed density (just speaking about the Mustang here).

Anyway, I do thank you for your clarifications. And I have to tell you that I actually cried a little the day I sold my Mustang. I watched the guy drive off with it from the front of my house. At least he was an Ok person. He called me up about 3 months after buying the car to let me know how much he liked it and that he had "not wrapped it around a tree". He also asked again when I replaced the clutch and I again told him that it was the stock unit and that it wouldn't make any sense to change a clutch after only 77,000 miles.

XxAfG786xX

no i kept it on for 10 min, thats it...

darksky

Cool. I dunno if I can honestly notice a difference, but thanks for the info!

BlackSnakeMoanzZ

I just got my car back from the shop, it's been two whole months since I drove my TL. Just had new engine put in and the car can't pass emissions test. The told me that the ecu is not picking up the new parts and I should put 3000 miles on it so it can adjust and pick up the new engine mod. So what's the easiest way to do this.

08AcuraTL3

my battery died and I had to jump it, did it reset my ecu?

Inaccurate

Most likely, yes.

Having the voltage drop below a certain threshold will trigger a reset.

One time I had let my battery become too drained while I had the interior lights on and the engine turned off. When I tried to start it, the battery had just barely enough power to start the engine. But, the engine did barely fire-up. Once started, I had discovered that the ECU did a complete reset due to the voltage drop while cranking.

jchcmax

I used to "re-set" almost every other week because my Braille b2015 battery would get drained. I now have a Tomioka Racing TR-B2100 battery (that's 21 pounds to you Inaccurate) and no more dead battery issues. Re-setting the ECU always seems to make the engine sound stock quiet at first.

sauceja

iTrader: (2)

I used the Honda HDS at the dealer to reset mine. No radio codes needed and it really took to my RV6 TDE and J-pipe IMO.

Idle doesnt stumble as bad and sounds and feels smoother through powerband.

Just make sure all electronics and A/C are off after reset and while idling. It needs to re-learn the idle under no load whatsoever.

I do believe in this even if some don't.

08AcuraTL3

thats pretty funny if it did, because i swear my car felt faster for some reason. I didnt notice it right after I did it but one day it just hit me that my car felt a bit quicker off the line.

Xbriansg36x

This is perhaps the most aggrivating bolt on the car.

Tl4eva

iTrader: (5)

No need to reset the ECU, the car will adjust by itself.

just1nsama

Easy way to reset ECU w/o disconnecting the neg from battery:

post #17 in this thread https://acurazine.com/forums/3g-tl-2004-2008-93/resetting-ecu-makes-me-happy-747662/

TL Luver

iTrader: (2)

^^^ Imsurprise no one posted that sooner ^^^but I believe there's a little more to it than that I think you have to turn the key on put your foot down on the gas turned it off turning back let go put it down I'm not sure people might want to search for there but that is the best way...the reason I don't think that's the Right way is because if I remember correctly the turnkey gas down click your heels twice thing a light blinks on your dash panel letting you know the ECU is reset...

also if I remember correctly you have to remove the negative from the battery for at least 20 minutes you don't just have to put in your radio code and now code it'll actually say don't move vehicle wait while GPS is located... but guess you wouldn't get that on a non nav TL. ...

either way resetting your ECU it's always a good idea after installing something new even if the ECU will eventually adjust itself which in our case it does...

Mr Marco

Wow, 80 some lines regarding the intake and ECU on late 1980's FORD products. Who gives a shit.
Some people had too much time on their hands in 2008.

captwestmoreland

I have an 88 ford mustang gt 5.0 and I recently replaced my ecu in it. Now the car is running really bad on an idle and blowing black smoking out of the exhaust I used 5 gallons of gas in 3 miles trying to test drive it and nothing changed. All I have done to the car was put headers and flowmaster before the the original ecu went out. The car ran perfect when the before the original ecu went out. One guy said I may need a new prom or something like that. I am good with mechanical work but when it comes to the computer I have no idea what I am doing.

StanCeD_J32

iTrader: (11)

thanks! disconnecting the battery does work but as stated, it does take time to relearn.