Hey guys
I've had my 04 TL for about a year now, it has 12.5k miles on it, changed oil on it every 4-5k miles. I use synthetic blend oil. I also occasionally add redline v1 fuel injector cleaner. My car seems to have gained a few hunderd pounds from the way it drives now. real sluggish. I do the oil changes myself, never been back to the dealer for maintenance besides rattling problems. The only thing I have done is regular oil changes. Am I missing something? Any suggestions are appreciated.
Thanks

 

I have the same problem. But for you it could be different. I read that you had something in your gas. I Know that one guy at the same garage as mine, by doing this melt the inside of catalytic exhaust that result in poor performance due to electronic adjustement to avoid pollution.

For my car it's more a problem of transmission IMO (It's a 2005), but ACURA don't know what to do, although they agree there's a problem.They cleaned my catalytic exhaust.
When i start from a stop, I'M ENABLE to make the tires overspin or squealing even with VSA off. After 4500 it seems correct but before it's like a basic civic, believe me i don't joke. I always use 91 Octan gas and differents good brands.

 

ok, question for you guys:

have you ever disconnected your battery?

 

Nope, why?

 

well, once you've disconnect & reconnect your battery, the ECU resets. after reconnecting the battery, you are supposed to leave it running, without revving, to its normal operating termperature. and afterwards, restart it, and drive it like you normally want it to. this is especially important for the 5AT owners, imo. so, if 2 TL's both reset its ECU and one drove like you stole it and the other like a granny, the former would outperform the latter on a track.

but i think it's worth disconnecting/reconnecting your battery, leeman8, and after getting it to its normal operating temp., shut it off, restart it, and then go for a crazy drive.

it could be other factors, of course... cars' performance drops as it gets old... but your car is only a year old. i'll post if i think of anything else... it's so damn hot and humid today, that i can't think straight.

 

They did and nothing better, they put new update software in the ECU and the problem come back always

 

oh, interesting...will definitely try that. So the car learns you driving habits?

 

well um... i don't know what to tell you, sebounet. how old is your car??

 

6 months and 15600 miles.

I'm quiet sure it's the transmission

If i drive a lot in a city,, the morning when i leave my home everything is correct but after few miles of first, secound, third, secound, first etc... the car is sluggy from a stop.

If i do a 200 miles trip on a highway without traffic, and after go to a city the car start from a stop normaly, until i do to much traffic driving and the problem come back

I noticed also when i use the kickdown in D mod for example, the VROOM between the gears seems to be longer than when i have no problem.

IT' s difficult because ACURA is waiting that someone from Tech line call them one day and say i have a clue for your problem. SInce he call back i would have sold my TL in 1.5 years.

The problem is the techs just rely on electronic sensor ( CHECK ENGINE LIGHT), no check engine light equal no problem for them.
A guy come with me with a kind of computer, he plugs it under the sterring. He looks all the figures or information while i was driving and nothing wrong.

I had a 2000 accord they change my transmission just before warranty ends (there was a recall on them). I had it for 1 week, and wasn't able to go rear in my driveway, going uphill. No light come on on my dash so the tech say impossible there's 70 sensors so we would know it, so i said come with me and he was agree that the new transmission was faulty.

What i mean is actually tech guys don't know to think without electronic information, they don't know "the old way" to check a car

 

for sure. i know a corolla isn't a performance car but i was able to "tune" it just by driving a certain way. it now stays in gear longer so i can accelerate faster. obviously this works only for autos

 

Seems the problem might be the tranny fluid. I would switch to a synthetic ATF, check that your oil is not overfilled, use 93 octane , keep proper tire pressure, try the ecu reset, and if it still doesnt help replace coolant or find a good synthetic additive.

 

Try adding some rocket fuel to your gas the next time you fill up.

 

I don't know what to do. I call the dealer and said i have always a problem and he told me no answer from acura, He said he's going to join them and call me back after, but no answer.


I dis a test and my 0-60 mph is around 9 sec, so i really know i have a problem

I fed up to wait, i purchased a 270 Hp car that start like 130 hp car. I always think it's a tranny problem, but my dealer is not agree.

What should i do, the problem is there for 3 months and more.

I'm afraid to race against civic

 

i had the ecu flashed because of a rough idle on cold-start and experienced a distinct lack of power since. my girlfriend states it's been "nuetered". unfortunately i still have the rough idle on cold-start. i believe the ecu re-flash retarded the timing significantly. i disconnected the battery during a recent traqns fluid change, and have been running 94 octane Sunoco w/ the hope the ecu will re-learn and advance the timing. it has not changed after several tanks....

 

Not sure if its relevant but does the car's vtec engage or is it just overall powerband lose?

 

It seems to be just untill 4000 4500 RPM just before the vtec engage.

and sometimes when you use the kickdown i feel the "vroom" between the gears too slow.