Powertrain, generic · Fuel and air metering, auxiliary emission controls
P00D0 Barometric Pressure - Turbocharger/Supercharger Boost Sensor B Correlation
Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible
With the engine stopped or without boost, the boost pressure sensor B (between compressor and throttle) must read practically ambient pressure. This code is set when it deviates from the barometric pressure sensor by more than a threshold; the code does not say which of the two is wrong. B denotes the second boost pressure sensor, for example on a second turbocharger. Manufacturers that publish their diagnostics run the same comparison under other codes. None of the published manufacturer documents searched uses this code; the explanation follows regulations and comparable manufacturer monitors.
Likely causes
Boost pressure sensor dirty, oil-coated or drifting
Barometric sensor drifting, also when inside the control module
Contact resistance at connector, ground or 5 V reference
Sensor port or hose leaking or blocked
Symptoms
- Check engine light on
- Reduced boost or limp mode possible
- Often no further symptoms
Repair estimate
DifficultyEasyDIY possible
Parts and labour€40–300
Time0.3–1 h
Typical range across vehicles; the real cost depends on what the testing finds.
Parts involved
boost pressure sensor bbarometric pressure sensorsensor reference voltage
Related codes
References: law.cornell.edu, fordservicecontent.com, gsi.ext.gm.com.