This question is for tuners and anyone that has a modified 997.1 TT making 650wtq or more peak.

How do you keep the PSM from kicking in during hard acceleration in low gears? I am learning more about this now that my car has a power kit installed making close to 700whp and 650wtq. I am told that even when you disable PSM it is still active and will kick in if it detects sufficient wheel spin. I was surprised to learn this because I thought when it was turned off it was really "off". So, even in a straight line run it may kick in and cut the throttle at 4-5k rpm in 1st or 2nd gear.

How do you work around this?

Thanks.

 

LSD. It keeps rear wheels in sync while accelerating.

 

Does it also happen without PSM light blinking?

- If so, its related with ECU tune.
- If not, you can try again by removing the PSM fuse.

 

The PSM light blinks when this occurs. So, even if this is ECU tune related would a LSD still help alleviate this problem? My 997.1 TT does not have LSD.

Regarding removal of the PSM fuse ... would this not cause other issues?

Thanks.

 

LSD will help for PSM light for sure, but not for ECU tune stuff.

PSM fuse you can try for straight line acceleration, like drag racing etc..

 

I don't quite understand this response. My car is custom tuned. When I go all out in 1 and 2 PSM kicks in and cuts the throttle (sometimes); this is with factory PSM turned off so the light is on. When PSM cuts the throttle the PSM light blinks. Would LSD in the rear help with this problem?

Sorry for the newb questions but I'm used to C5/C6 Corvettes and LS motors - when the nanny is off it's really off.

 

Sorry for the confusion,

Yes, LSD will help in this case.

 

Thank you. That is good to know.