Rebuilt 3.7 runs great cold but stalls when hot

[Polebarnnorm]

Hi, Just put in rebuilt 3.7, had Accurite Engines, rebuild it.
Lots of new sensors, coils, plugs, injectors, etc.
Rebuilt Transmission, by Clems Transmission.
Original 196K miles, before engine rebuilt.
Starts Great when cold, soon as engine gets to normal operating temp, it has a tough time idleing.
It will stall 5 out of 10 times, when coming to a stop.
I will get a PO017 engine code, sometimes,
I replaced the crankshaft pos sensor and did the relearn on it (rev engine till it stops around 3200 rpm).
I replaced the cam pos sensor.
I replace MAP, MAF sensors.

Also, when I restart after it stalls, I smell gas.
I did fuel pressure test, 58 psi.

What else can I test or change to fix this?
Thanks,
Polebarnnorm

 

[alrock]

What year is your H3, and do you know what year H3 that engine came out of? Some of the others, like 06 H3 and Outfitter Design, know these engines better but I believe there are some differences between years. Could be different sets of sensors, for example.

 

[Polebarnnorm]

Hi, My H3 is 2008, I pulled motor and had it rebuilt.
Just did Driving Fuel pressure test, with gage taped to windshield.
Stalled 5 times when coming to a stop, no change in 59psi fuel pressure.
This drive, I did get a P0106, MAP performance code, along with P0017.
Sometimes I get the Service Stab Sys Failed Traction, when it almost stalls.
Then start driving and it starts to jump, feels like misfire. stop hummer on the side of the road, turn off engine, start back up and it drives normal, until stopping again.
Just did a smoke test, piping smoke into MAP sensor port.
No smoke coming out from intake, etc.
I just changed the battery cable terminals to solid ones.
I think I will put on original Throttle Body, to see what happens.
If this does not fix stalling issue, I will do oil pressure test on rebuilt engine.
This is very baffling to me.
I appreciate all HELP.
Norm

 

[08H3]

Pure guess, but that is similar to my 2008 when I bought it. Mine would stutter, sometimes die and go into limp mode briefly when accelerating. Then ran great. It was a bare wire on the cam position sensor. The wire would move just enough on acceleration to short to ground on the valve cover. The intermittent nature of what you are having would cause me to start looking at electrical issues.

 

[Polebarnnorm]

Hi,
Thanks for the info.
I have been looking at the wires, most of the black plastic corrugated wire protector is gone.
Could get damaged easily without the wrap.
I have been wrapping them up, as I can get to them.
Norm