BADSZ28

iTrader: (39)

When I started my car this morning it died right away. I started it again and gave it some gas and it tried to die again. After it settled it idles at 400RPM. I drove to work and power seems good, responce is good. After I let off the gas and put it in neutral it drops to 400 for a few seconds then comes up to 700. When I decelerate in gear it pulls the car harder to slow it down. The car has had the same setup for a year now with no problems. Basically stock with minor bolt-ons and stock tune. 2002 Z28 M6. It stays in the garage. I drive it at least once a week (just drove it for over 100 miles last weekend with no probles). This has never happened before and there is no SES light or anything. Is it bad gas? I am worried. Please help me figure this out without a trip to the dealer.
TIA

777

iTrader: (21)

geez...at first i thought you had said it idles at 4000 rpms...but anyhow if you installed a throttle body...that could be it...i guess something could have loosened something in there....but having that setup for over a year and nothing happening seems odd that it would do it all of the sudden...something also could have gotten into your gas i suppose...i can't really help out too much...nothing is really making too much sense to me

BADSZ28

iTrader: (39)

It doesn't make sence to me either. I'd blame gas, but it runs smooth and strong in the throttle.
Any one else?

Juiced

iTrader: (2)

chek your air filter at idle it might not have enough vacum to feed the motor through a clogged filter but when the rpms go up it might be able to pull enough air

BADSZ28

iTrader: (39)

Now it's fine. So strange. No problems today.

Full-Force

iTrader: (11)

if it does it again give your computer a wack! see if it stumbles or comes back to life ... ive seen it happen before on a cavalier .... just a bad computer