I have an 02 4.0 edge.It is acting up,I recently changed the fuel pump and it worked fine for weeks,now it barely runs throwing code p0113.I changed the maf sensor,I checked the voltage today at 40 degrees or so it is at 3.5 volts.Can anyone tell me what else to check?Thanks for your help.
Kenny
My scanner says IAT too high

 

Unplug the MAF to put it into open loop mode and see if it clears up (the running not the code)

Verify that you have 5 volts into the IAT and that your signal return wire has low resistance by checking it from the IAT to the PCM. not sure if that truck uses the MAF or if it has a seperate IAT sensor. I think it has a seperate sensor in the intake tube. Not sure

 

I have tried that many times it will idle alittle better but stumbles and dies when I increase throttle.with the maf off the volts at the gray wire is 4,52.

 

what wire do I check at the pcm and is the harness on the firewall that has a bolt holding it on?

 

Ok ,this will idle without the maf sensor plugged in but wont with it,without and with it in it dies as soon as you give any throttle at all.it falls on its face and dies. reral fast.