Airmaster controller, FP1 connector

Posted Aug 16, 2025 Updated Aug 17, 2025 5:20

By Fan Zhang

1 min read

TLDR

Installed Airmaster controller onto the panel
Fixed and installed FP1 connector

Detail

Airmaster Controller

There are 2 parts of the airmaster controller to install - the main controller box, and the fine/coarse manual adjust lever.

There are three wires that goes between the main box, the manual lever, and the harness to wire them all together.

I first took the G5 out to allow more work space, then installed the manual lever and connected wires between the manual lever and the main controller box.

As I double-checked the wiring labels, something didn’t add up. On my wiring diagram I am supposed to connect ENG7B22 to power the box, and ENG8C22 as the ground for the box. Well I don’t have a ENG8C22 wire. Instead, I had 2 wires eng7B22 and eng7C22. I measured the continuity for these 2 wires to airframe. Neither of them were grounded.

I sent an email question to MWPB, and they confirmed it’s ok to run a new wire directly from the box to ground bus. It’s not ideal, but simple enough. So the wiring question was solved and I fully connected all the controller stuff to the panel.

After the controller, most of the holes are filled on the panel!

FP1 Connector

Another issue is the FP1 connector. Last time when connecting the panel I noticed the female side of FP1 connector’s pinout didn’t match the wire diagrm. The diagram listed pins 1-15, but the connector I had came with pin 1-13, 14 empty, then 15 & 16. So at least one of the pins is incorrect.

Today I used a pin extractor to remove pin 15, 16 and checked them against the diagra. It turned out they should be in pin 14 15. So I just swapped the pins and connected the connector behind the dash.