Hello,
2002 GTP - Stock
I pulled the engine and installed a new transmission last week. Everything went back together great but now the car won't idle in Park or Neutral when warm. The idle bounces from nearly stalling to 1500 RPM or so and is really rich smelling. It's throwing P0171 and sometimes P0306. It idles fine at first start up, and in gear, and it ran well before I took everything apart. no issues(aside from the blown up trans).
When I pulled the engine/trans I only disconnected the fuel rail, harness, TB, and a couple vacuum lines. I didn't disturb the top end of the engine or supercharger at all. I also swapped over the old NSS and speed sensor to the new trans.
I've checked all the vacuum lines/connections
I've checked all electrical connections
I've pulled the fuel rail and cleaned up the ports
Where do I go next in the troubleshooting? I really don't want to start throwing a ton of parts at it...
Thanks!
