perennial

When I go about 45mph and take my foot off gas, it feels like engine is braking ??

PeekRepeat

Are you in "Drive" or S mode?

perennial

Im pretty darn sure its in Drive

sr20mofo

iTrader: (10)

are u cruising at 45mph then letting go or u stomping up to 45mph that letting go? ect pwr on?

Tarrant64

Check to see if ECT PWR mode is on. Also do you hear the engine revving high? What are your RPMs? We need more data.

If ECT PWR mode is on if you are accelerating rather quickly and let off the gas it will keep rpms high longer holding it in a lower gear anticipating you are going to stamp on the gas again. I personally love this.

If you are not in drive and in S mode default max gear is 4. Meaning when you accelerate to 45mph it will remain in 4th gear and that could give the braking effect also.

perennial

It happens when I take my foot off the gas after going over roughly 45. Believe the rpms are near 2500-3000. Not using pwr mode and not in s mode. Is s mode where I use shifting?

perennial

Sorry, i am cruising for a little bit and then let off. A lot of street lights so I don't cruise at a content 45 for longer than 45 seconds or so.

PeekRepeat

I could be totally wrong, but your ecu might have adapted to your driving style and is putting you at a lower gear quickly when you let off the gas.That or it's holding a lower gear longer.

"Also, yes. S-mode is the shifting gimmick."

Tarrant64

Not sold on ECU, myself. Doesn't sound like car has been driven that long.

nosurprise

iTrader: (1)

What gear are you in before and after you let go of the brake? The only way to for the RPM to be that high is that the car go into 4th gear -- or something is wrong with your car.

Tarrant64

That's what I'm thinking myself. I drove yesterday and put the car in "S" mode, which if you ask me can easily happen if you're not careful and just slam the shifter down into "D". If I do that and drive around right up to 45mph and left my foot off the gas the RPMs are higher than they should be and it feels like the car is braking.

OP, when you're driving do you see a "4" number on your dash? It should be fairly obvious, if so, then you are in "S" mode and not in "D". If that's not the case something must be wrong and you should get your car checked out.

Also, are you able to get onto a highway and go up to 60mph? Does the same thing happen, because it should if you're in "S" mode.

If there's real concern it's the ECU (which it shouldn't adjust to do that at all, nothing that noticeable to the point you think something is wrong), you should be able to reset it by disconnecting the battery. Not sure for how long but I think it's just the negative cable that needs to be disconnected for a minute or two.

Kurtz

iTrader: (1)

If trying to reset the ECU it's much easier to just pull the ECU fuses rather than disconnect the battery