Sluggish acceleration
#1
Advanced
Thread Starter
Sluggish acceleration
Right when I get in my car for the first time, acceleration is great. I'm assuming cold engine = cooler air. But later in the day, I get horrible acceleration. I have to nearly put the peddle to the floor to get anything at all out of it. Is this common? I'm assuming a CAI is the next step? I'm not looking for racing or anything like that, but I like to have acceleration consistent and decently strong.
#4
Instructor
+1 ^^^ what he said
#6
Three Wheelin'
I had that problem for years, i changed a lot of stuff and some helped but none of them gave me that low end torque and response. The car always felt like i had four, five people in it. Finally about a month ago, I was driving back home to jersey from charlotte and the check engine light came on for the first time ever... Right away i noticed how easily the car was accelerating and had no problems on hilly roads, just beautiful. My gas milage dropped some... So when arrived home, had the code scanned and it was the oxygen sensor. One thing i never touched. I still havent replaced the 02's but the car is still running like a champ...it doesnt think twice about down shifting and it really pulls strong... I am hoping once i replace them i will be finally done with the sluggish performance....
#7
Suzuka Master
battery
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#8
Advanced
Thread Starter
I didn't realized I went back to the modification section...Ooops
Anyway, it's an 08' TL with 55,000 Miles. I honestly don't know if the plugs have ever been changed, but I want to change them. Otherwise, the engine runs strong and such. Resetting the ECU - what's involved?
Anyway, it's an 08' TL with 55,000 Miles. I honestly don't know if the plugs have ever been changed, but I want to change them. Otherwise, the engine runs strong and such. Resetting the ECU - what's involved?
#9
LowNslowTL
I didn't realized I went back to the modification section...Ooops
Anyway, it's an 08' TL with 55,000 Miles. I honestly don't know if the plugs have ever been changed, but I want to change them. Otherwise, the engine runs strong and such. Resetting the ECU - what's involved?
Anyway, it's an 08' TL with 55,000 Miles. I honestly don't know if the plugs have ever been changed, but I want to change them. Otherwise, the engine runs strong and such. Resetting the ECU - what's involved?
#12
Suzuka Master
iTrader: (1)
If leave my hazards on for 3 minutes, my battery gets so weak that it's like almost dead.
I replaced it,
didn't feel any difference at torque.
It was pulling nice with a bad battery too.
Isn't 50k too early for plugs, sensors etc?
Do the ECU reset, but never worked on my car.
Removing the negative cable will work better.
If you don't have a SRI, it wouldn't be about a stock intake during winter.
Oh...Florida
ehh still...no humid
I replaced it,
didn't feel any difference at torque.
It was pulling nice with a bad battery too.
Isn't 50k too early for plugs, sensors etc?
Do the ECU reset, but never worked on my car.
Removing the negative cable will work better.
If you don't have a SRI, it wouldn't be about a stock intake during winter.
Oh...Florida
ehh still...no humid
#13
Advanced
Thread Starter
Cool, thanks guys. I'll try resetting the ECU. Does the car really "learn" my driving habits? Probably drives like a baby since my mom owned the car for the first 53k..
#14
LowNslowTL
yes the ECU picks up on your driving habbits and adapts to the way you drive.. after a while it needs to be redone.
#16
Welcome to the club of owners with this issue.
It didn't do anything for me. The battery in my car was original (four years old). I've had this issue down to as low as 50* ambient. Took it to the dealer once already and they couldn't find anything. When I have this sever power loss, the engine also surges/hesitates. It's all over the board. Honestly, it's the only thing keeping me from truly enjoying the car.
It didn't do anything for me. The battery in my car was original (four years old). I've had this issue down to as low as 50* ambient. Took it to the dealer once already and they couldn't find anything. When I have this sever power loss, the engine also surges/hesitates. It's all over the board. Honestly, it's the only thing keeping me from truly enjoying the car.
#22
Instructor
iTrader: (1)
Always have used premium. It seems like im definately not the only one. it will drive amazing, and then all of a sudden it feels like torque decreases by like 50% It seems that the high end power will stay, its just acceleration in the lower rpms will be very slow and power surges. It seems like it has something to do with ecu.
Definately not heatsoak because of the odd times it happens.
Definately not VSA kicking in for traction
Resetting ECU makes no difference.
Ill try to video it the next time it happens. which should be tomorrow or the next day or maybe even tonight, who knows. I will try switching the battery out for a few days and see if that makes a difference.
Definately not heatsoak because of the odd times it happens.
Definately not VSA kicking in for traction
Resetting ECU makes no difference.
Ill try to video it the next time it happens. which should be tomorrow or the next day or maybe even tonight, who knows. I will try switching the battery out for a few days and see if that makes a difference.
#24
Three Wheelin'
Actually the more i think about it I believe it has to do with the traction control mulfunctioning for whatever reason... You can try turning off the VSA before you even start driving, i bet you will notice a difference.
#25
Instructor
iTrader: (1)
ive read many of your posts, and i know for a fact we're experiencing the same problem. For example, yesterday my car was driving absolutely amazing, and then out of no where it will happen again. Just doesnt make sense. This only started happening in the past few months and ive had the car for 4 years.
#27
#29
The Boss
I mean after the car gets to temp its going to heatsoak, and you will lose power. When my car was bone stock the heatsoak was ridiculous. After CAI,TB bypass,jpipe, its much better than what it was. But its still annoying that the car picks up so much faster at a cold start.
#30
Intermediate
Join Date: Nov 2012
Location: Midway, ky
Posts: 28
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I've had similar issues with my 08 base and its heat soak. I removed th plastic covers under the hood and it was noticeable but at times when its warmer outside it still gets sluggish. The cowl plastic where your windshield washers reside needs to be altered removed as there's no way for the under hood heat to escape. I started a thread a few months ago for the same issue and narrowed it down to heat soak.
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