traction contol button off -better engine performance?

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Sep 13, 2005 | 07:00 PM

Bluemill

Thread Starter

Racer

Joined: Mar 2005

Posts: 286

Likes: 36

From: Scituate, MA

traction contol button off -better engine performance?

I was getting my annual inspection sticker the other day and was biding my time in line by talking with a mechanic who seemed interested in my 2000 coupe 6 speed. He said he had a 2005 GTO with the LS2 engine and 6 spd. He told me that the traction control off setting puts the engine in much higher performance ignition and fuel injection timing profiles. He also said you would get better fuel economy. I told him my understanding was that if you started to slip on a rear wheel under load that the ABS would kick in and reduce fuel to the engine. It would only do this when you lost traction. Who's right?

Also, I have got a nagging soft rattle in the firewall/driver side dash area that I've put a lot of work into. I thought for sure that it was the HUD projector, but after removing the whole dash, the whole instrument cluster, and the HUD unit, it still does it. Could there possibly be anything in the heater core/evaporator area that could do this? It does it all the time but is most noticable at 30 mph when going over "cracked" or older asphalt.

Thanks for any help you can offer-

GBWBook/Bluemill