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chaysem

chaysem 6/10/2021

2014 Ford Fusion SE 4 Cyl 2.00L

Engine

What does the code P0236 mean?

I have a 2014 Ford Fusion SE 2.0. The other day I was driving and coming to a stop when my car completely shut off, and my check engine light came on along with a wrench. I started it back up and it would just shut back off. Finally I was able to start it up and drive back home. During the drive home the car was running and shifting very jerky. The RPM's were bouncing up and down. When I made it home I put my scanner on it and the code P0236 appeared. I was able to erase the code and restart the vehicle and everything performed fine until a few days later is did this again. The same code appeared and I have done the same thing. Does anybody know what's going on? The DTC code is a permeant code.

1 Answer


Jimm

Jimm 6/14/2021

P0236 = Turbocharger Boost Sensor A Range/Performance

Potential causes for this code to set are:
Vacuum supply
Pinched, collapsed or broken vacuum lines
Faulty control solenoid
Faulty PCM

A good starting point is always to check for technical service bulletins (TSB) for your particular vehicle. Your issue may be a known issue with a known fix put out by the manufacturer and can save you time and money during diagnosis.
Visually inspect for kinked, pinched, cracked or broken vacuum lines. Check all of the lines not just the ones related to waste gate control. A significant leak anywhere in the vacuum system can cause poor performance of the entire system. If okay move on to step 2. Using a vacuum gauge check for vacuum at the input side of the control solenoid. If none is present suspect a faulty vacuum pump. If vacuum is present move on to step 3. The control solenoid is operated by Pulse width modulation or duty cycle. Using a digital volt ohm meter, that has a duty cycle or frequency setting, back probe the signal wire at the solenoid connector. Drive the vehicle and check to see that a signal shows on the DVOM. If signal is present suspect a faulty control solenoid. If no signal suspect a faulty PCM

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