175 proxs water pressure connector location?

[dudewheresmyboat]

I'm looking to replace water pressure gauge on the dash and would like to locate the hose that connects to outboard under cowl to blow out any gunk stuck in the line. I cannot find any info on the mercury parts catalog, any ideas where it is? Are there any special tool that I would need to remove this and reinstall?

2015 175 Pro XS
S/N: 2B116597

[Riccochet]

probably a thin gray hose on the starboard side of the engine.

[EuropeanAM]

Look on and below the coil plate. Small gray tube that "tees" (one up to the sensor, the other towards the dash). DO NOT blow compressed air into the line unless you FIRST remove the line from the Block (water) Pressure Sensor.

Fittings are LEGRIS (slip-collar) fittings.

[dudewheresmyboat]

thank you SIR!