Update 1-3-2011ECU ReinstallHad time this weekend to reinstall the ECU and mock-up the custom fairing to use with the TrailTech and dual headlights. First, the ECU reintall.
First, here's the ECU upon its return. You'll notice the RACE sticker, which according to urban legend immediately means the bike makes 15 more hp and the only exhaust from now on will be rainbow farts. I'm a realist however, I don't expect much change.
First is to reinstall the two bolts that hold down the ECU, taking special care to reinstall the ground strap on the left hand bolt.
Once they are both attached, time to reattach the ECU wire bundles. First seat them into place.
Then rotate the hold down arms into place.
Until they lock into place.
Do the same on the other connector.
Lastly reinstall the negative power lead.
Go ahead and lower the tank and reinstall the seat, the physical reinstall is finished. Now it is time to take care of the programming issues you will have with a freshly flashed ECU. First is setting the position of the Throttle Position Sensor (TPS). After that, fuel trim should be adjusted.
TPS ResetTo do both of these procedures you have three options:
1. Buy a VDSTS cable from
www.technoresearch.com for your specific ECU
2. Take the bike to the dealer and pay them to do it (the bike is safe to ride, these procedures are for tuning purposes)
3. Be a cheap bastard and borrow one from a generous friend.
I obviously went with option 3. bergdoerfer was kind enough to let me borrow his cable (thanks!).
The TPS reset procedure is incredibly simple. First we have to get the bike hooked up. Find the ECU data harness that comes off the left side ECU connector. Looks a little something like this.
Remove the plastic cap so you can get to the connector
Hook up the power leads on the cable using the alligator clips
And then attach the data cable
Turn on your ignition and you're set to start adjusting.
Launch the software and click the gauges icon to connect to the ECU. You should see the TPS position change from 0 to whatever your TPS is currently reading, in my case 4.2
Now click the Active settings icon, the blue screwdriver.
Click the TPS tab
Click the blue screwdriver, you will get a warning saying "Hey dummy you're about to screw with something that will affect engine operation, sure you want to do this?", We do, so click OK to proceed. You will get a brief countdown and then this dialog box.
Turn the ignition off for at LEAST 13 seconds (I counted slow to 30 just for safety's sake) and turn it back on. Upon it powering back up, you should get this:
Voila, your TPS is reset, now on to fuel trim. For this one you're going to have to get the bike to operating temp. So you know what that means. Start it up, then
Once it gets around 170 You can begin. Click the Fuel Trim tab.
Fuel Trim
The left hand side is your fuel trimmer. Click the Trimmer button, you will get a message at the bottom saying that the engine must be at operating temp, it is not an error, just a warning. Then use the arrows to raise and lower fuel trim.
The precise method is to use a gas analyzer positioned on the tailpipe to get a CO reading of 4-6%. The po boy method is to use your ears and listen to the motor. Starting from 0, raise the value three steps at a time. You should hear the idle speed increase SLIGHTLY. This is half science and half voodoo, not gonna lie. Keep increasing the value in two or three step increments until the idle starts slowing down instead of speeding up. Once that happens back off two steps and click Save. This method will result in a slightly rich condition, which frankly I prefer over lean.
You're set, you have a mostly tuned ECU and can go for a test ride.
ECU Flash ImpressionsI'm a realist. I know that a little electrical voodoo isn't going to turn a tame 695 into a fire-breathing beast with a few mouseclicks. With that said, I'm truly impressed with the improvement. Not the incredible amount of power it adds (my ass dyno isn't finely tuned enough to tell you if I gained a few hp or not) but instead how much it improved the low end power delivery. "Throttle response" is a term I usually associate with jagoffs self-justifying spending stupid money on a worthless mod. But in this case, I'm that jagoff. Starting from a stop and low speed cornering are butter smooth compared to the jerkiness of the stock programming. Delivery is more linear, and once the roads aren't 15* it just might end up I have a few more horses. Overall VERY impressed with Houston Superbikes' work and would recommend spending the $250 to anyone. There are always the YMMV warnings, but my transaction was incredibly smooth and I'm very happy with the final result.
And most importantly after the flash, the bike started up without the gauges attached... Which leads to the next part of the write-up, removing the stock gauges and preparing to install the TrailTech Vapor...
