MIKE3516

Hello Guys, I have done some research on this problem i'm having and cant find a solution, When i come to a complete stop and i try and punch it all i get is a slow crawl until i hit vtec then she takes off. I have no Warning lights tried to reset computer which seems to help a little bit but goes right back into this slump, I have read about the APP sensor but wasn't sure if this could be my issue since i have No Warning lights or anything. Please Help!!

justnspace

iTrader: (1)

the TL makes peak power and torque at 6000-7000 rpm.
so, yes, at 5000RPM(vtec) it should GO with authority.

are you auto or 6MT?

MIKE3516

I have Auto, I could smoke tires no Problem before now i cant even get a squeak off the line.

justnspace

iTrader: (1)

have had it since 2008? in other words, first owner?
when did you start noticing problem?

MIKE3516

No i have owned it about 4 months now, it had like 92,000 miles now The trans was replaced at 60,000' The water pump,timing belt,and plugs were all done at 86,000 miles

MIKE3516

Has*

justnspace

iTrader: (1)

you havent had it long enough, summer months are brutal to the TL! when the ECU detects temps above a certain level, the ecu will scale back timing. imparative to use the highest octane available!


I mean, I cant find a flaw in your post, none of the things you mentioned would make the car slow, except the heat soak.

MIKE3516

So you don't think the APP Sensor could be giving any issues?

justnspace

iTrader: (1)

it could, but wouldnt explain why in vtec the car is more powerful.
I would expect a pedal position sensor to act the same throughtout the entire powerband and not just 1.5-3k RPM

justnspace

iTrader: (1)

if anything, i would expect the car to run into limp mode

MIKE3516

I do notice it when it's Warmer, When the car sits over night or its cooler out the issue is not there. Just sucks cause it feels like I have no power!!

justnspace

iTrader: (1)

if the computer IS PULLING timing, it would mean you really dont have power!
this car pulls timing on every thing! because of the engines high compression ratio...it is pretty high at 11:1:1
Too hot? pulls timing. not enough octane? pulls timing. Detects slippage in wheel on take off? pulls timing

you can do things to trick the computer or add vents to aleviate said temps....but more for the extreme modder.

MIKE3516

Haven't done much to it yet have Aem cold air intake and 3rd cat delete.

justnspace

iTrader: (1)

^is the AIT sensor in the correct place? (air intake temp. sensor) it looks for temps and will ask ECU to adjust accordingly

MIKE3516

Where is it located on this car?

MIKE3516

justnspace

iTrader: (1)

near the throttlebody, on black hose.. but since you have an aftermarket intake, it should be on the intake itself.

MIKE3516

Will Y.

Also try tightening up the throttle cable per this thread: https://acurazine.com/forums/3g-tl-p...-doing-830989/ ,

Welcome to AZ.

MIKE3516

Yes Will, I have also tried tightening the throttle cable. it just sucks when your 3.2 seems faster off the line then your 3.5

Oh Sickest TL

iTrader: (3)

do some research on the IAT sensor. When I swapped my 3.2 manifold and throttle body for the 3.7 parts I had to relocate the IAT sensor as usually it sits near the throttle body and intake , but your AEM intake doesn't have the bung in which the IAT should be relocated to. I had to dangle mine near the bottom of the front bumper and ziptie it

justnspace

iTrader: (1)

^thats why I couldnt see the sensor on the aftermarket intake....^cuz the bung isnt there.

Thanks bro!!

as mentioned, its probably hanging some where. it needs to be somewhere recieving cool air!

Oh Sickest TL

iTrader: (3)

correct! His intake is not the V2 AEM so it doesn't have the bung. Justn is right, whoever installed the intake probably just left it dangling. Youll need to locate the sensor and extend it by soldering in an extension and locate it somewhere near the bumper mesh near your foglights and you should be good to go

MIKE3516

Thanks guy's I will look tonight and follow up with you

MIKE3516

How Many bungs should the after market intake have?

Oh Sickest TL

iTrader: (3)

just one, look up the aem v2

MIKE3516

truonghthe

heat soak are normal for our TL, I live here in TX where for the past month temp hovering around 100 degree and my TL barely beat a 2012 TSX 4 banger in a race lol. I know I can smoke the TSX with no problem if the car wasn't get heat soaked.

MIKE3516

Check Engine light came on this weekend code P0420

acurapartsdiscount

bank 1 catalytic converter. that's the one by the firewall

rockstar143

iTrader: (6)

so a/f is getting thrown off by a bad o2 sensor then?

Oh Sickest TL

iTrader: (3)

vinyl wrap the o2 sensor

TVL65

I have a 07' TLS Automatic with 128,000 miles. Anytime it's hot out the car is an absolute slug, it's heat soak and I'm used to it now. Nothing you can do.

MIKE3516

I heard from some people that the coolant temp sensor could cause heat soak, Anyone Heard of this?