MAP sensor range/performance on Ford EcoBoost/TDCi — usually a contaminated sensor or boost-leak rather than the sensor itself.
Ford P0106 — MAP sensor range/performance on Ford EcoBoost/TDCi — usually a contaminated sensor or boost-leak rather than the sensor itself. Typical UK independent garage cost: £80–£380.
What actually causes P0106 on a Ford
On 1.0 EcoBoost the MAP sensor sits on the intake manifold and gets coated in oil mist from blocked PCV breather — the contamination skews readings, ECU sees mismatch with throttle position and stores P0106. On TDCi diesels a split intercooler hose causes the same symptom; the sensor reads atmospheric while ECU expects boost.
Ford engines that log P0106
- 1.0 EcoBoost (Fiesta, Focus, B-Max)
- 1.6 EcoBoost (Focus, Kuga)
- 2.0 EcoBoost (Mondeo, Kuga)
- 1.6/2.0 TDCi (Mondeo, Focus, Transit)
How we diagnose P0106 on a Ford
- FORScan / IDS — read MAP voltage at idle and during snap throttle
- Smoke-test full intake from turbo to inlet manifold
- Inspect PCV system for blockage (causes oil contamination of MAP)
- Remove MAP sensor and inspect tip for oily film — clean with carb cleaner or replace
- Compare MAP vs baro readings — should match within 50 hPa at key-on, engine off
The common misdiagnosis to avoid
Replacing the MAP sensor before smoke-testing the intake is a £60 mistake — half of Ford P0106 cases are intake leaks, not sensors.
Ford P0106 repair cost in the UK
Expect £80–£380 including parts and labour at an independent garage. Main-dealer quotes on Ford are usually higher for the same job, and the spread exists because the cheap cause and the expensive cause throw the same code — pay for the diagnosis before you pay for parts.
Bob's workshop tip
On 1.0 EcoBoost specifically, if the MAP is oily, fit a new PCV/oil separator at the same time (£35 part) — otherwise the new sensor will contaminate within months and you'll be back where you started.
Codes usually seen alongside P0106 on Ford
- P0299
- P0238
- P0405
Symptoms drivers report with P0106
- Sudden loss of power on a motorway slip road — car drops into limp mode at exactly the point you plant the throttle
- Full power returns after a key-off / key-on cycle, then disappears again 10–20 miles later
- Whistling, hissing or a chuff-chuff noise from the engine bay under acceleration
- Slight oil mist around intercooler pipework or a stain on the underside of the bonnet
- MPG drops 4–8 mpg within a tankful, sometimes with faint black smoke on hard acceleration
- Sometimes paired with P0299 (underboost), P0234 (overboost), or P0401 (EGR flow)
Repairs that clear P0106
- Clean or replace MAP sensor
- Smoke-test intake and boost pipes
- Check EGR isn't stuck open
For the generic, all-makes explanation of this code — meaning, every known cause and UK cost bands — see our P0106 guide.