BoonDocker ARCTIC CAT: 700/800 Turbo - Manual (Page 14)

BoonDocker – 1585 Hollipark Dr. Idaho Falls, ID 83401 – (208) 542-4411
website: www.boondockers.com - email: [email protected]
Revised 12-01-00 Page 14 of 15
Note 2: It is possible for the sled to run but the wiring harness to be wrong – the box cannot make proper fuel
adjustments. If you see an injector error, first recheck the wire positions in the black connectors according to
the tables in these instructions.
Other Issues
Engine runs erratic:
1. Verify that the ground on the sled’s harness (heavy brown wire) has a good connection to the chassis. On the M7
model, this ground is connected by an eyelet attached to the bolt at the base of the steering support hoop on the
Mag side of the sled (close to the gas tank)
Note: The nut that holds the ECU ground wire on M7 sleds is known to come loose!
2. Verify that the EFI Harness Ground Wire has a good connection.
Note1: Arctic Cats require that this ground wire on the Control Box must be connected to CHASSIS
GROUND (not Engine ground!).
Note2: If the headlights have been removed (hood is removed or aftermarket hood is used), the electrical
system can cause interference with the Control Box. We recommend using a 100W power resistor to place a
sufficient replacement load on the electrical system.
3. Verify that all wiring is in good condition and that the wires have not pulled out of the terminals. To verify this,
look inside each connector and verify that the terminal pins are all at the same height. If a terminal is starting to
back out, it will appear to be lower in the connector.
4. Unplug the EFI harness and plug original harness back into the injectors and verify that the sled runs OK (test can
only be done at low rpms before boost comes on).
5. If problem only occurs with Control Box plugged in, change all fuel adjustment settings to 0 and see if problem
persists.
6. Verify that the Control Box does not reset itself when the sled is running by doing the following:
a. When the sled is first powered up, change the menu screen on the Control Box to one of the fuel adjust
screens.
b. Run the sled.
c. Before shutting off the sled, verify that the screen is still on the same menu selection.
d. If the startup screen is displayed (showing version number etc.), the box has reset itself. This is likely
caused by bad voltage to the box due to an intermittent connection.
7. If necessary, the voltage supply to the box can be verified using a voltmeter. Probe from the Mag-side gray
connector on the EFI harness where two red wires go to one connector terminal. Insert a small thin wire such as a
paperclip or a small probe tip between the connector and the rubber seal in order to make contact with the terminal
inside. Place the positive voltmeter probe here. Place the negative voltmeter probe on chassis ground. At idle the
DC voltage should read around 19-21V. On the AC voltage setting, the reading should be less than 1V (this will
be much higher if an older analog-needle meter is used). A bad ground to the sled’s ECU will cause these
readings to be incorrect (DC readings around 7-9V).
Rough Idle Idle adjustments are much more sensitive than other adjustments since the injectors are on for a
very short duration. You may not be able to adjust your 3000 LO settings by very much.
LCD is dim If you are using a 9 volt battery to power the box when the sled is not running, your battery voltage
is getting low – replace your battery. Extreme hot or cold temperatures may cause the LCD to not
display properly.
LCD display is slow
Cold weather conditions can make the LCD respond very slowly. The Control Box will still
function OK. You can locate the box under the hood in order to provide heat so the LCD will
display quicker.