afk

When I hit the accelerator from 1st gear to 2nd gear, I get some king of lag. Not sure if is a issue with stock intake or throttle body, but I don't get the lag when accelerating slowly.
Has anybody had this issue ?

Morphh

Check if any codes come up

afk

No codes came up. I Also did clean up in the throttle body recently.

Morphh

Try the throttle reset

Morphh

The only time my car lagged is when IC pump dead, and gas pedal assembly had to be replaced

afk

Was your car lagging in any gear. How can you tell if is the ic pump ?

afk

I just installed the sl55 y pipe yesterday. I noticed that I don't get the lag like used to. Car is running much smoother and better throttle response too.

Morphh

IC pump power comes and goes, gas pedal assembly car wouldn't go over 30km when floored and code came up, can't remember what code it was.

afk

I started up my car today and notice that my car wasn't getting full throttle. I was stepping hard on pedal but was getting 1/3rd of throttle response, I felt that had lost power.
I turned it off the engine and parked for 1 hour, after that stared up the engine again, and power was back to normal.
No engine light, no codes.

any suggestion of what could it be the issue ?

kbob999

Sounds like it could be a gas pedal issue. This car has an electronic throttle, and when it fails it goes to 'limp mode'. You can shut off the car and reset it immediately, which it will now work normally. But it will come back in time by doing the same thing, or getting a reading that is out of spec for the throttle. This will only show a code if the car is left running and the codes pulled. If you shut it off, the code is not stored.

In my case, punching the throttle fast would throw it in limp mode. A new throttle pedal fixed it. It's one 10mm head bolt and a wire connector to replace. Ebay has used units for about $30. Not a bad way to test the throttle, or fix it.

A bad IC pump will show itself under long pulls by overheating the IC cooling system. This removes the supercharger from action until the IC/SC cooling system, and intake air temperature, cools down. Shutting the car off and starting again does not allow the cool down, so the problem will remain. Parking the car for an hour may clear this issue. But if you warm the car up, and make a long pull, it will cut off the SC again.

If you have an OBD2 port reader dongle, and app like 'OBDFusion' you can track intake air temps through your smart phone, and you will see if your pump is running and keeping the intake air about 30 degrees above ambient temp. If it exceeds I think 180 degrees, it will cut the SC off, and you will lose power.

Totally different symptoms from both items. Test and let us know what you find.