2012 dodge ram 5.7 2500 will not stay running
I have replaced the crank sensor, the cam sensor and the ECM. no codes initially all gauges and electronics seemed to be fine. the fuel pump is running and I jumped the TIPM for good measure. seems to be no fuel injector pulse Currently the truck will start and run for about 20 min then will cut out and not restart until cooled down. no codes until recently now have code for intake air temp sensor.
Cars & Trucks - Dodge
Answers & Comments
If you don't have a code reader that reads live data, borrow one or go to an auto parts house and 'rent' one. Watch your intake air temp (and coolant temp) as the engine warms up. If you don't see the temperatures going up (coolant more than IAT), you may have a bad temp sensor. The computer feeds more fuel when the engine is cold, and may be running the engine excessively rich when it is warmed up.
Coolant temp is rising more than IAT, IAT and ambient temp about 6's IAT 1-2 degrees higher.
It seems to loose injector pulse from what I can tell. is there a relay in the TIPM that controls this? or possibly the WIN module?
What does the vehicle security system disable?