Well, if it won't start unless you manually add gas down the throttle body it
means its not getting fuel by itself. Sounds like a fuel pump problem to me.
Try banging on the tank while someone cranks it. I doubt the code 37 has
anything to do with it not running.
I'll beat Stefan to the punch here:
http://minimopar.knizefamily.net/fault/index.html
Synopsis
Notes: For non-turbo engines with automatic transmissions only
Description: Part throttle unlock (PTU) solenoid circuit is open or shorted
Power loss light: Off
Limp-in mode: None
Possible Causes
http://minimopar.knizefamily.net/fault/code37-NA.html
Fault Code 37-NA
Synopsis
Notes: For non-turbo engines with automatic transmissions only
Description: Part throttle unlock (PTU) solenoid circuit is open or
shorted
Power loss light: Off
Limp-in mode: None
Possible Causes
Bad connection