Okay my truck will start up and idle great until it gets to operating temp. Once it's warmed up it m

What do I do to fix this problem I have to drive my wife 30 some miles to work every day. Once my truck warms up it starts to misfire and starts to cut out

 

Check engine light on?
If so, what codes?

 

P0115 engine coolant temperature sensor 1 circuit

 

I just replaced that sensor

 

If you have a scan tool. Look and see what the scan tool says the temp is under live data.
Maybe it want the sensor, and it was the wires too the sensor.

We can test that. But let’s see what live data says first.
Cold engine. The temp should read close to outside air temp.

 

Ugh
Brokenneck
Check out my ETC thread
Pretty much under yours

my AM sensor choice failed after 6 months

 

Now im getting a misfire on cylinder 1 along with engine coolant temperature sensor circuit 1

 

similar issue, following ....
i have no codes but after warms up will idle down to 500-600 (slight vibration/annoying)
have replaced: maf, temp sens, both o2 sensors, adjusted throttle cables

it will idle back up if i turn the wheel or turn on ac but then idles back down..
2.4 185k, new to me truck I'm fine replacing what ive done so far cause it seemed to have little to no regular Maintenace.. beyond this point im just throwing $ at ?? since no codes

 

PBwithJ... pull the intake tube off and look in the throttle body and see if it is gunked up, if so, clean it.