For the MAF, first step is to feel around the air hoses from the turbo down under the air filter to the intercooler, and up from the other side of the intercooler past the coolant reservoir to the engine. There are 4 sections of rubber hose. The metal pipe down under the air filter has been known to rust through also.
cwmoser. 9459 posts ยท Joined 2004. #4 ยท Jun 27, 2021. If I recall correctly, the 3 prong sensor is Engine Temperature and reflects on the Instrument Cluster. The 2 prong sensor turns on/off the electric fan in front of the Radiator. There are 50C and 70C metal temperature sensors under the Air Cleaner.
manged to locate the connector block for 1 side reversing lamp next to seat belt tensioner see pictures. picture 1 reverse light connector to lamp. picture 2 connector block located next to seat belt tensioner unplugged it the tried reverse light not working but opposite side is , plugged it back in light working.
7 minutes ago, Vikigib87 said: all it comes up with is fuel fired heater. Some sensor faults, if intermittent or minor & within range, do not show up as errors. In that case, the only solution may be to change things, starting with the cheapest (I hate that approach, but sometimes it is the only way).
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ford mondeo 1.8 tdci coolant temperature sensor location