Powering up the PCIIIUSB
The Power Commander needs to be constantly powered in order to communicate fully with the computer. It should have a constant green light on. Make sure you have a fresh (above 8.5 volts) 9 volt battery if using the battery adapter; or if using the bikes power, most bikes need to be running to provide the constant power needed rather than just turning on the key. Make sure the USB connector is fully seated into the Power Commander. If there is any silver showing on the connector, it is not completely plugged in. It is a tight snap-in fit connection.
Power Commander V on older bikes
The PC V was initially released for 09 models forward only. We have started offering the PCV for some models older than 09. We have not tested and verified operation of the unit on some of the older models at this point, so we cannot officially support it for use on anything other than what we have tested. Some of our dealers and individuals as well have successfully retro fitted the PC V to older model bikes that have not changed from previous model years to 09. Since we have not done any testing on the older models we do not have any pre developed maps for many model years prior to 09 either. A map for a Power Commander IIIUSB can be imported to the PCV. Any installation and utilization other than those applications specifically recommended by Dynojet would be at your own risk.
Does a Power Commander make my vehicle faster?
The Power Commander is a tuning tool to adjust fuel, and on some models ignition timing. Just adding a Power Commander to a completely stock vehicle usually does not increase peak horsepower. It usually will improve drivability, throttle response, and mid-range horsepower and torque. If the vehicle has been modified in some way to increase airflow through the motor, the Power Commander can provide the correct amount of fuel for those modifications. This will often give an increase in overall horsepower.
Do I need to disconnect my o2 sensors?
In order for the race ready line of Power Commanders to have complete control over everywhere a vehicle runs, we usually want to disable, or control the stock o2 sensor(s) on a machine. This gives us the ability to tune the vehicle everywhere. If the stock o2 sensors are left connected as from the factory, they would conflict with the fuel changes the Power Commander is making. In effect, nullifying the fuel changes the Power Commander makes.
Will this Power Commander fit my bike?
Dynojet makes about 500 different Power Commanders; they are pretty much unique to a certain year/model vehicle. A Power Commander for one vehicle, most likely will NOT work on a different vehicle. There are exceptions to this rule; a similar model from the same manufacturer might use the same Power Commander. If you have any questions, just give us a call or email for fitment questions
Why doesn’t your AutoTune use 10/12mm o2 sensors?
Dynojet supplies industry standard Bosch 18mm wideband o2 sensors in our AutoTune kits. 10/12mm wideband o2 sensors are not readily available. To use the AutoTune module, 18mm bungs need to be welded into the headpipes and the 18mm sensors need to be inserted into these bungs. Dynojet has tested a few of the 10/12mm to 18mm adapters and found them to not work correctly.
Does the Power Commander V have built in Ignition control?
We do offer “built-in” ignition timing adjustability and ignition controlled features (Rev X-tend, Launch control, Pit-lane Speed Limiter, etc.) on the Power Commander V module for a select few single and twin cylinder models. Three and four cylinder models would require an additional Ignition Module accessory for this capability, if available.
PCV Map Switch
The Power Commander V is capable of having two maps loaded, and being able to switch between them on the fly. Once you have made the physical connections of the map switch, you need to enable the option in the software, and then send a second map to the Power Commander. In the desktop software this option is found under Power Commander Tools/Configure/Feature Enables & Input Selections. Check the box next to Map Switch; click Ok, and then Send Map. After enabling this option, the first time you send a map to the Power Commander, you should get prompted on which position to send the map to. Once you have sent two maps to the Power Commander, every time you Send or Get Map, it will perform that function on the map that is selected.
How often to accept AutoTune trims?
The AutoTune module creates the adjustments and stores them in a table called Trim. It is a good practice to accept these trims a few times (2-3), on a new install. When you accept the trims you will be moving the values generated by the AutoTune from the trim table(s), to the fuel table(s). This feature can be found under Map Tools/Auto Tune tables/Accept All Trims. Be sure to Send Map after accepting the trims. After accepting the trims a few times, there is little benefit to continue accepting the trim values further; the AutoTune will always make small day to day adjustments.
How do I add a SFM or Ignition module to my PCV?
The Power Commander controls the secondary units SFM or Ignition modules. In order for the Power Commander to do that, it has to know the other unit has been added. To accomplish this, just plug both the PCV and other unit into the computer using two USB cables. The Power Commander software should detect a second device, and prompt you to add it to the network. Once a second device is added to the network, the Power Commander software will want to see that second device from then on. You will need to use two USB cables, or run the engine to accomplish this.
Should I buy the AT-200 or AT-300 AutoTune?
If you have a 2 cylinder bike with a PCV, you have a choice to use either the dual channel kit (AT-300) or the single channel kit (AT-200). The dual-channel AutoTune kit tunes more accurately (cylinder advanced), but is more expensive. Some people don’t feel the gains outweigh the cost, but others do. The gains to be made with dual channel over single channel are dependent on the bike model. On an air cooled V-twin, the cylinders are going to need different fuel quantities because of the cooling differences. A parallel or boxer twin would have very similar cylinder temps, and have similar fuel requirements. There is also exhaust airflow differences to consider, a V-Twin has very different flow from cylinder to cylinder; other types of twins have nearly identical exhaust flow from cylinder to cylinder. It’s a judgment call which is best for your bike.
How do I tell if my AutoTune is working?
The easiest way to determine if the AutoTune is working is to go for a ride, come back, plug the Power Commander into a computer and look at the trim table(s). If there are values in any cell other than zero, AutoTune is working. If the table is all zeros, AutoTune is NOT working.
What does the start-up fuel option do?
This option gives you the ability to add, or remove fuel for a short period of time during engine cranking and initial start-up. This option is commonly used on with big motor builds, to get the bike to start when cold. It can also be used to remove excess fuel during start-up when larger injectors are installed.
Should I purchase the AutoTune module, or have my vehicle custom tuned on a dyno?
The AutoTune module does give an end user the accessibility and capability to custom tune a Power Commander map file, as accurately as a professional dyno tuner using the Bosch LSU 4.2, 5-wire, wideband O2 sensors for exhaust gas analyzation. Some users may find that having a professional tuner setup everything as needed (including the AutoTune feature) is necessary. As a professional tuner is only as good as the equipment he/she uses, the equipment is only as good as the person using it also.
My Launch Control option is not working, how can I test it?
First, the Power Commander has to be in control of Ignition timing to use this feature. The Power Commander is basically looking for a change of continuity to ground on a wire when the clutch lever is moved. Basically the wire would be grounded, and then not grounded when the clutch lever is pulled, or vice versa. Test this wire with a multi-meter, engine running, side-stand up, and in gear. We have seen various bikes act differently under all of these conditions.
Quick shifter configuration in PCV
When setting up a Quick Shifter with a Power Commander V, there are a few things to keep in mind.
- If the bike has 8 fuel injectors, just the Power Commander is not enough; you will also need an Ignition module, SFM, or QEM.
- You can only use gear dependant mode it you have ran a wire from the bikes speed or gear sensor to the Power Commander V, and have configured speed or gear input. In most cases start out with Single Time mode.
- Make sure the settings for switch style is set to match the sensor you actually have. Dynojet has sold both types, open or closed. The best way to confirm your sensor type is with an Ohmmeter. At rest, the sensor will either have full continuity (closed), or no continuity (open). Set the switch style to match your sensor.
How do I configure AutoTune target AFR?
Dynojet creates target AFR tables for most of our pre-configured maps. The values in our supplied AFR table are what we recommend for most users. You are free to change these values to meet your needs or desires. The AFR values we supply are what we have found to work best on that particular vehicle. There are some older maps that do not have any values in the AFR table; you will have to fill those in yourself. Most naturally aspirated four stroke engines, running pump gasoline, make the best horsepower at an AFR between 12.8 – 13.4; and get the best fuel economy around 14.7 AFR. Boosted engines need significantly different numbers.
How do I configure Quick Shifter settings?
The Quick Shifter has settings that can be adjusted for longer or shorter kill times; and the minimum rpm the Quick Shifter will function. You may find the default settings work for you, or you can make adjustments. You can adjust the kill time longer or shorter; the engine will hesitate for that number of milliseconds. You can set the minimum RPM to whatever you like; the Quick Shifter will only work above that RPM. You can only use gear dependant mode if you run a wire from the bikes speed/gear sensor, and configure speed/gear input.
Can I have AutoTune start working after a certain engine temperature?
The AutoTune process has an option to start working only after a certain engine temp is reached. In order to use this option, the Power Commander V has to be connected to the engine temp sensor, and temp input has to be enabled on the PCV.
Software Issues and Features
Power Commander III Button adjustment
With the ignition off, hold down all three buttons on the Power Commander III unit. While still holding down the buttons, turn on the ignition and start the bike. Release buttons. The light(s) should show up in the last place they were left, by default the center two lights. Select the range you wish to adjust: Low, Med, High by pushing the corresponding button once, (these ranges are determined by taking the bikes RPM limit and then dividing it into thirds). At this point holding that button down will move the lights down (leaning out the mixture). Pushing the button repeatedly will move the light up (richening the mixture). When the two center lights are lit up this is the “0” setting. After making your adjustments wait 20 seconds before turning it off. This allows the settings to be saved to memory.
AutoTune Running Light
The AutoTune running light in the software will only come on if all of the parameters for the AutoTune to work are true.
- The light on the AutoTune module is steady Red.
- The Can cable and Terminator plug are installed.
- The require run time, if enabled, has elapsed.
- The require engine temp, if enabled, has been exceeded.
- AutoTune Switch, if turned on, switch is in the correct position.
- The motor is running at an RPM and Throttle position that has a valid number in the target AFR table.
- The live AFR reading is between 11.5 and 16.0. If all of these parameters are met, the light for AutoTune Running should be lit.
How do I downgrade my map from advanced to basic?
On the Power Commander IIIUSB, just go to Tools, Demote map to Basic. With the Power Commander V, this setting is found under Map Tools, Advance Demote map, Fuel Tables (TPS). Change to Basic. If Basic is not an option, you will need to Delete AutoTune tables first. To do this go to Map Tools, AutoTune tables, Delete tables. Once this is done, the option to change to Basic fuel tables should be available.
Can I use two maps and AutoTune at the same time?
The Power Commander V does have the capability to store 2 maps in its memory that can be toggled “on the fly” with any simple single pole, single throw switch wired to 1 of the 2 available switch inputs on top of the PCV module. The extra memory capacity for the 2nd map is also what is used to store Auto-tune tables, so the Map Switch feature and Auto-tune feature can NOT be enabled simultaneously. If Auto-tune is enabled, you could instead use the switch to toggle the Auto-tune feature on/off “on the fly.”
PCIII USB firmware update failure
You can import a Power Commander III USB map into a Power Commander V by following the steps below.
- In the PCV software, click on File, then Import PCIIIUSB map.
- Click on a PCIIIUSB map, and then click Open.
- The PCIIIUSB map will be converted to PCV format, and opened in the PCV software.
- At this point you can either save this map on your computer in PCV format, or send the map to a Power Commander V.
Rev Extend in predeveloped maps
The reference in the map notes about the Rev Extend enabled indicates that that map was developed with the Rev Extend enabled and the fuel was mapped though the higher rpm settings. It does not indicate that the Rev Extend feature is turned on in your Power Commander. You must still manually turn on the feature in your Power Commander in order for it to rev to the higher limits.
The Power Commander is controlled by firmware in the unit. This firmware can be updated in the field by running a firmware update. The latest firmware is always available on our website. Firmware updates are how Dynojet introduces new features, and fixes known problems. A firmware update is not required unless you are having a problem, or want to take advantage of newer features. You have to be using the latest desktop software to install the latest firmware. Just download and save the latest firmware, and then unzip the file someplace you can find quickly on your computer, like the desktop. Next, run the update firmware from within the Power Commander desktop software. The update will take a few minutes to run; when complete your firmware should be up to date. The Power Commander V firmware update often needs to be run a few times to complete fully. The Power Commander III USB needs the 9 volt adapter to perform a firmware update.
The Power Commander V, SFM, and PCV Ignition module all take the same version of firmware, and all modules on one vehicle need to have the same version. The Power Commander III USB and Ignition module have different versions of firmware available, and they need to have compatible versions. If you update your Ignition module, you may also need to update your Power Commander. Be sure you select the correct firmware for your device. The Power Commander III USB needs the 9 volt adapter to do a firmware update. The Ignition module needs the Programmer module and 9 volt adapter. The latest firmware is freely available on our webpage.
Loading a map
The map in a Power Commander controls how the vehicle runs. The correct map should make the engine run well; the wrong map may cause the engine to run poorly. To load a map in a Power Commander, you need to have installed the correct Power Commander Software and maps. Both of these are freely available on our website. First open the software, and then select Open Map. Select a map you want to use, then Send Map to overwrite the current map with the one you have selected. The Power Commander III USB needs power to complete this; either the 9-volt adapter or by running the engine. The Power Commander V only needs the USB cable to do this.
How do I use the Switch Input under feature selections on the PCV?
You have two options for switch input, 1 or 2. These relate to the holes on the side of the Power Commander. Starting at the outside edge at 1, and counting inward, holes 6 and 7 are switch input 1. Holes 4 and 5, are switch input 2. If the wires from your Map switch or Quick Shifter are connected to the holes 6 and 7, set the option to switch input 1. If they are connected to holes 4 and 5, set the option to switch input 2.
Setting throttle position on fly-by-wire bikes
The normal procedure to set the throttle position will not work correctly on fly-by-wire bikes, because the throttle is controlled by the bike’s ECM. The throttle blades may not go fully open until the engine is actually above a certain RPM, or some other parameter is met. In these cases, you only need to adjust the closed value so TPS reads zero at normal idle. In the throttle calibration screen, there is an arrow button pointing to the left. If you click this button, the numbers in the left box will be changed to match those in the center. Click Ok, you should see the TPS is now reading zero.
Do I need to use Get/Send Map or Table on the PCV?
The Power Commander V software offers the option of getting or sending a table, vs. getting or sending a map. A map for a Power Commander can be made up of multiple tables. If you are looking at one table, and select Get or Send Table, you are only doing that one table. If you select Get or Send Map, you are doing all the tables.
How do I adjust gear calibration?
The Power Commander V has a utility to accept speed input, and then the unit will be able to calculate what gear you are currently in, based on that speed input. Connect the factory gear sensor to Analog input on the PCV. To calibrate this, put the bike on a stand with the rear wheel able to spin freely, start the motor. In the PCV software go to Power Commander Tools > Calibrate > Gear position. Put the bike in first gear, and let the rear wheel spin while the bike idles. Click the Calibrate button for gear 1. Next, shift the bike into each higher gear, and repeat the process, clicking on the Calibrate button for that gear. If the bike is moving with the clutch out, the Power Commander will now know what gear the bike is in.
How do I calibrate speed input on a PCV?
For the Power Commander to display the correct speed, it has to be calibrated. In the Power Commander software, there is a utility to accomplish this. First a wire has to be run from the vehicle speed sensor to the Power Commander V, speed input. Next, go to the menu Power Commander Tools > Calibrate > Speed Input. On this screen, you can type in a Target Speed, and then get the vehicle up to that target speed (on a stand or dyno). Once the vehicle is at the target speed, just press the Calibrate button. The Power Commander software should now display the correct speed.
How do I load two maps on my PCV?
First you have to enable the option in the Power Commander software. This setting can be found under Power Commander Tools > Configure > Feature Enables & Input Selections. Next check the box for Map Switch, and then click OK. Next, you need to open a second map, and then click Send Map. You should be prompted to choose Position 1 or 2. Click Position 2. Now you should have two map positions. From here on out, when you click Send/Get Map, both maps will be handled.
Most Power Commanders are powered by the injectors on the bike. When you turn the key on, the fuel pump gets power and primes the fuel circuit. When this happens, the injectors get power, and the Power Commander also gets power and lights up. After a few moments, the fuel pump has pressurized the system, and usually shuts off. If the fuel pump shuts off, the injectors’ loose power, and the Power Commander shuts off. If you attempt to start the bike when the Power Commander is off, the bike will NOT start, until the fuel pump comes back on. The fuel pump may come on instantly, after a few engine revolutions, or on some bikes seemingly not at all. If the fuel pump does not come on, the bike will not start. We recommend starting the bike once you turn the key on. Do not wait for the fuel pump to shut off, or a check engine light to go out.
When troubleshooting, try removing the PC from the bike first. Does the problem go away? If yes, then load a zero map from us to the Power Commander. Does the bike run the same as it did with no Power Commander? If yes, the map you were using was incorrect for the vehicle. If no, the Power Commander is not working correctly, try a firmware update. Then test again with a zero map. The latest version of firmware is always available on our website.
The predeveloped maps on Dynojets’ website were created on a Dynamometer at our facility in Las Vegas Nevada. All of the maps we have created are listed on the website. These maps were created with the model vehicle listed, with the modifications listed. There is no way for us to have a predeveloped map with every possible aftermarket component. If there is not a map listed for your exact configuration, select a map with similar aftermarket components. If you have an aftermarket slip-on type exhaust, then select a map with a similar slip-on exhaust. If you have an aftermarket full exhaust, select a map for a similar full exhaust. If you have an aftermarket air cleaner, select a map with an aftermarket air cleaner. The map created for one vehicle, should work pretty well for a similar vehicle, with similar aftermarket components installed.
The maps created by Dynojet have very few (if any) changes to ignition timing. Dynojet is very conservative in giving out maps to customers everywhere in the world. An ignition timing map that works well for one customer, may not work for another customer, in another area, with different quality fuel.
Harley crank error or no start
If you are getting a hard, or no start problem with a Power Commander installed you may need to have the CKP (crank position sensor) on the bike checked for its output voltage. When they get to the lower limits of their specified range (weak) they can cause errors when the Power Commander is connected. It is a very common occurrence on the older Magnetti Marelli equipped bikes. Sometimes the sensor can pick up metal particles from the crankcase, removing the sensor and cleaning it off may correct the problem. If the sensor tests out at a voltage near or at the lower limits of the specified range, the sensor should probably be replaced as it is an indication that it will soon fail completely.