I keep getting a P007B CEL but only when after I have driven in 4A. I have replaced 2 of the 3 MAP sensors (the one near turbo has not been repalced) and the CEL sill occurs when I drive in 4A.
Does anyone know what may be causing this?

2015 F150 3.5 ecoboost
everything is stock

Thanks

 

Bank 1 Charge Air Cooler Sensor is open circuit.
The code is set after the engine sets about 8 hours for all sensors to read close to the same.
When the ignition is turned on, the PCM looks at the readings from all these sensors. If one is out of limits too far, the code is set to ID which one is in fault.
Don't think it has anything to do with 4A drive train.
Good luck.

 

I'd suggest taking a closer look at the turbocharging system. Start by checking out the turbo itself—make sure nothing is blocking it and the vanes can move smoothly. Also, give the intercooler and its hoses a once-over to spot any leaks or damage messing with the air pressure.

Since the P007B code is related to the intake manifold pressure sensor, it's a good idea to dig into the vacuum system. Look for vacuum leaks, especially in the connections and hoses linked to the turbocharger and intercooler.