I've installed a boost pressure gauge last day on my swift.
here are the pictures.
Wires from the fog lamp switch
Drilled the A pillar trim.
Its a mechanical boost gauge which has a hose.There was a 'T' connector supplied with the package. I couldn't click the photos of the installation,because the connection to the turbo was done at night.
And thanks to my Dad
for his help. Zengetz
also motivated me to do this,when I was stuck in the midway.
Finding the hose was the toughest part.In the user manual its written that it should be connected to the fuel pressure regulator.But when I asked MASS people,they said that there is no such hose there.
At last I just experimented with the connection and it reads the pressure now.