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.
Reading P0106 on a Ford properly
A generic reader will show P0106 and nothing else. What matters is the freeze-frame data stored with it — engine speed, load, coolant temperature and fuel trims at the moment the fault was logged — plus whether any other module on the Ford has logged something at the same time. Codes rarely arrive alone, and the order they were stored in usually points at which one is the cause and which are the consequences.
Clearing P0106 without fixing it
Erasing the code resets the Ford's readiness monitors as well as the light. The fault returns on the next drive cycle if the cause is still there, and in the meantime the incomplete monitors can stop the car passing an emissions check. After a genuine repair, the car is driven until the relevant monitor completes before it is handed back.
Bob's Mechanical Repairs is an independent garage in Birnam, Dunkeld, Perthshire, with 32 years of Bob's experience on the tools. If P0106 is showing on your Ford, bring any scan results with you — we will read the live data ourselves, confirm which cause it actually is, and price the repair before any work starts.