2004 grand prix rough idle

Asked by Nov 19, 2015 at 01:26 PM about the 2004 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

I have a 2004 grand prix GTP 3.8 supercharged.
When I start it up if it doesn't go into reduced power
mode it will go up and down in rpms 100-200
unless I keep it above 1000k. It also smells like it's
running rich. If it goes into reduced power mode it
runs find at 1500k rpm and dies after 30 seconds.
It always ends up dying. I get codes p0101 and
p0068. I've tried to clean both MAF sensor and
throttle body with no luck.

1 Answer

119,735

You may have leaking injectors..

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