EmirGan

So just a quick update, being that it's my uncles car. Ran no better with the plug connected, but runs good in general. Although he gets around 9 liters to the 100, the dash reads anywhere between 17 and 25, which is weird. The check engine light was on upon buying and was reading a faulty lambda sensor. Upon resetting it today, the car ran the same but the light popped up again only a few hours later. Could the plug itself be a lambda plug potentially? It is an 03 1.4 with an AQW engine...

@TMB is this any better?? The upper wires go into the car through the top, wasn't able to trace the bottom.

Hi All, First post for me. Bought an '03 Fabia, 1.4 MPI AQW engine in it, and this connector was disconnected... Reconnecting it changed nothing so im curious as to what it is... Right above the abs pump and next to the coolant reservoir. Any help would be amazing. Thanks in advance!