Power loss and weird idle issue .. Please help!!

1492 Views 7 Replies 3 Participants Last post by 11gsrevo, Feb 12, 2012

11gsrevo

Discussion Starter · Feb 11, 2012

Hello everyone, I'm a new owner with an 2011 GSR..I've been lurking for a while but I never posted here before..

My car has about 6k miles on it. Dealer recently changed my Ecu because my Ecu was giving me weird SES lights with Error codes with no reason.. Car is bone stock and dealer was checked everything..It turns out I had a bad ecu..

Anyways, ever since they replaced the ECU car feels little slower than it used to be, like it's not boosting or clutch is slipping or something but I highly doubt I lost my clutch since I never lunch the car or anything and when I rev the engine, idle seems to be dropping little slow..like it's dragging . There is no SES or CEL, though.
I've searched but couldn't find my answer here and there.

Any help would be appreciated .
Thanks

Save

1 - 8 of 8 Posts

11gsrevo

Discussion Starter · #2 · Feb 11, 2012

anyone?

Save

hollywood_X

· #3 · Feb 11, 2012

What happens if you put it in 4th gear at a steady 3000rpm and go WOT all the sudden?

Save

11gsrevo

Discussion Starter · #4 · Feb 11, 2012

hollywood_X said:
What happens if you put it in 4th gear at a steady 3000rpm and go WOT all the sudden?

Car doesn't give me that "umph" feel, if that's what you mean. It used to pull harder on WOT I guess ..and idle feels like it's sticking it drops really slowly???

Save

Ev0_j0e

· #5 · Feb 11, 2012

maybe after the ecu was replaced they do do basic setting on the electronic throttle body to know how much is open/close. If the throttle body does not know where the limit is it might cause the issue.

Save

11gsrevo

Discussion Starter · #6 · Feb 11, 2012

I'm not really sure if they make any changes to the settings but isn't that the stock map it comes with it?

Save

hollywood_X

· #7 · Feb 11, 2012

11gsrevo said:
Car doesn't give me that "umph" feel, if that's what you mean. It used to pull harder on WOT I guess ..and idle feels like it's sticking it drops really slowly???

If you do like I say above and the rpms don't jump while the car still moves at the same speed it's not the clutch. So it's either a really rich tune on your new ECU, or they may have replaced your fuel relay.

Save

11gsrevo

Discussion Starter · #8 · Feb 12, 2012

Thanks for the info, yes I also don't think it's the clutch considering the mileage on the car and the way I drive it. before they changed the ECU I told them to check my relays thinking that's the problem I had..and they said they all tested fine. I'm guessing it's the tune, it feels like an NA car, I have some good acceleration in lower gears but that's about it..I guess my best bet is to put a boost gauge and see my boost levels and take it from there

Save

1 - 8 of 8 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month