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Product/Service: Power Commander PCIII-USB
Manufacturer/Provider: DynoJet - Powercommander
Reviewed by: Jeff Kufalk

The advent of fuel-injection on today's modern sportbikes has taken much of the mystery out of tuning, and certainly most of the time required to perfect such. No longer do you have to pull carbs and fiddle with a box full of jets and needle clips which disappear without warning. Now it's as simple as "plug-n-play".

Dynojet took a step forward in 2003, bringing out the new USB supported Power Commander III.

A quick call to DynoJet and the package was on the doorstep 3 days later.

What's in the box?

Unit, cables, adapters, comprehensive instructions and stickers.

Out to the garage I go. Installation was pretty simple. I already had the bike apart, so it was nothing much more than propping up the tank and getting at the connectors to install it. The instructions with the unit are extremely detailed and spot on.

Once you have enough bodywork off to get the tank lifted, do so, and prop it up using the holes in the frame to insert a prop-rod.

Lay the PCIII-USB pretty much anywhere, and attach the negative lead to the battery.

The PCIII-USB has connectors which go in-line with the stock connectors for the unit. Remove the stock injector connectors and insert the PCIII-USB connectors, then insert the stock connectors into the PCIII-USB leads. Ensure that each injector is inserted into the right connector! This is important!

Next, you have to locate the Throttle Position Sensor and tap into the RED and YELLOW wires. I found this easiest when I removed the TPS connector completely. The connector is located directly behind the left main portion of the frame, and can be difficult to get to if you don't have small hands. I used a small flatblade screwdriver and a pair of needle nose pliers.

That's really all there is to it for installation! From there, find a place to mount the unit and secure it to the bike.

A few notes on the PCIII-USB

Early models had a problem with them cutting out when the bike would warm up. I actually had one of these units, and Dynojet was more than happy to replace mine immediately. My understanding is that all of these units are off the market and have been re-built to resolve the problem.

Following replacement, I had more problems with the PCIII-USB cutting out. Talking to one of the engineers at Dynojet, we determined that the problem was my mounting location. I had mounted my unit quite close to the exhaust can, and despite installing a heat barrier, it was not enough to prevent the PCIII-USB from cutting out due to overheating.

Upon relocating the PCIII to the front upper cowl of the bike, I have not had a problem since!

Through all of my problems with the PCIII, I have to say that the support from Dynojet was fantastic.

Tuning the PCIII-USB

Powercommander.com has pre-made maps for most any exhaust system which are available to download for free on their website. I personally opted to have mine custom mapped by my mechanic Shane at Lake Country Powersports.

BEFORE DYNO - AFTER DYNO

With just a Micron Slip-on we managed to go from 104.5 to 105.2 with the PCIII-USB. However, the air/fuel ratio and power curve are perfect!

The beauty of the PCIII-USB is that it is much quicker and easier to make adjustments than any carbureted bike on the market. Additionally, the PCIII from Dynojet is probably the most widely used FI management system in the world. Definitely worth my time and money, and certainly a recommended product for you.

Where can you get yours? Just about anywhere!

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