[razvan.stoian]

Hello. I recently had to remove the whole intake manifold including the wire harness (octopus) in order to replace the gas lines. While putting everything back in I realised I can't find the socket for a connector. It has blue/red red/white wires coming out of it and is situated near the oil pressure sensor underneath the intake manifold. It has the code (1 427 515.9) on it.
The engine spins but doesn't start. Any help would be appreciated.
The connector looks exactly like the ones in the image below.

 

[markusmarkus]

I assume that the oil pressure switch has a connector. The easiest way to find a connector’s mate is to move the wayward connector in ever direction until you find its mate. Since it has 2 wires it’s likely a temperature sensor or another pressure sensor.

 

[razvan.stoian]

I assume that the oil pressure switch has a connector. The easiest way to find a connector’s mate is to move the wayward connector in ever direction until you find its mate. Since it has 2 wires it’s likely a temperature sensor or another pressure sensor.

That's what i thought but then why doesn't the engine start?

 

[razvan.stoian]

Update:
I solved the not starting part. It was unrelated to this connector. To this day i have been driving my car without that connector plugged in and it didn't make any difference except for the fact that it starts a little too rough and then settles in like 2 seconds. Would still like to know where that connector plugs in.