CareyPJ

with just over 100k miles, my wife finally had the L-tuned shocks & springs installed on her GS400. We also replaced the sway-bar bushings with the Daizens. The mechanics at mahdavi motorsports suggested we hold-off on installing the control-arm bushings to make sure we really wanted to make a drastic change in the "Lexus" smooth ride.

Anyway, on her ride home, the VSC engaged on a few mild turns and would kill the engine power. Any recommendations?

Sam is going to look at it this morning, but curious if anyone has any suggestions.

From some previous threads, it sounds like the speed sensors may have been affected. It appears that if we carefully clean the sensors and reset the ECU, we should be ok.

BA_GS400

iTrader: (1)

Sorry to hear that man.

I've heard of the CEL coming on when those speed sensors are accidentally damaged during an S&S installation. (at least I think it was the CEL)

I didn't recall it as being "vsc kicking in" at all. You've got me stumped. Sorry I got nothing to help.

Hopefully someone will though!

400DGRZ

iTrader: (2)

Well it is possible that the GS was just doing its job.

The turns you took may not have been as mild as you thought they were. With an upgraded suspension, you can push the car a lot harder than you previously could with a lot less effort. Maybe the tires just arent up to par. How old are they?

CareyPJ

after resetting the ECU (negative ground disconnected from battery for 30 minutes), the VSC warning light seemed to be correctly reset.

The Michelin PS2's and L-tuned S&S seem to be working well together.

I imagine a BBK may be in order in the near future.

Thanks for everyone's help.