By Greg Kilgore
Wife and I were on a little 20ish mile ride. Machine was running fine. Stopped at store to get a drink. Inside maybe 10 minutes. Came back out and Axis would not start without giving it gas. Axis would not idle. Had to hold gas to keep idle around 1500. Let off gas and it would die. Restart a few times but didn't turn key off before starting again. Just went from run to start with key switch. So I kept idle around 1500 shifted to H and headed to the house. Dash flashed error code 201.
Axis ran fine. Except when we had to turn around. It would die when letting off gas. Started right back up. Got to the house. Let off gas and Axis died when I Let off gas. Turned key switch off. Waited 30 seconds. Started without hitting gas and it idled just fine. Both in neutral and in gear.
Thinking it maybe be something with ignition switch. Cause when it would not idle when starting. I did not turn key to off. I just tried to start again. But after I got home and it died. I turned key off waited and it started back and idled just fine.
By Joe Toup
There does not seem to be a lot of good sources out there for troubleshooting and diagnosing ECU problems with my Massimo Buck 400 (which is also a Bennche 400 & Cazador 400 only with different badging), so I thought I'd share some info that I found during my searches the past few days. I was trying to diagnose and repair a hard starting issue. Using the following info, I was able to figure it out. My ignition coil threw a 0351 code. I discovered how to read the codes without an OBDII code reader. The following procedures should help you check your fault codes and clear them if needed.
Fault Code Troubleshooting for Delphi MT05 ECM on the Massimo Buck 400, Bennche Bighorn 400, Bennche Cowboy 400, and Cazador 400
*NOTE: The MT05 ECU is not really OBD 2 compliant. It is much more similar to an OBDI system. I know this because I once converted a Suzuki Samurai from carburetor to a full on EFI system a while back and it had all of the same type of sensors as a Delphi EFI system. The MT05 ECU controls either 1 or 2 cylinder engines commonly found on Massimo, Bennche, and Cazador.
Much of the ECU info was found here:
https://netcult.ch/elmue/HUD ECU Hacker/Delphi MT05 Manual.pdf
Delphi EFI System Design
Delphi EFI employs 5 sensors to monitor engine performance.
1. Crankshaft Position Sensor
2. Coolant Temperature Sensor
3. Oxygen Sensor
4. Throttle Position Sensor
5. Manifold Air Pressure/Manifold Air Temperature (MAP/MAT) Sensor
Delphi EFI employs the following system components.
1. MT05 Engine Control Unit (ECU)
2. Fuel Pump
3. Multec 3.5 Fuel Injector
4. Idle Speed Control Valve (Idle Stepper Motor)
5. Multec Ignition Coil
6. Fuel Vapor Canister Purge Valve
Using the Digital Dashboard to Decipher EFI Trouble Codes
In addition to the diagnostic scan tools, you can use the engine warning light of the Siemens dashboard to diagnose EFI problems. The digital dashboard receives signals from the MT05 ECU, and the engine warning light will flash a diagnostic trouble code (DTC) if the ignition key is switched on/off for three cycles.
When you turn on the ignition, the engine warning light will illuminate, which indicates the EFI system is operational. After the engine is started, the engine warning light will extinguish if the EFI system is working properly. However, if the engine warning light remains illuminated, it indicates the EFI system is not working properly, and there is a system component failure.
Deciphering Diagnostic Trouble Codes
To read the diagnostic trouble code (DTC), open and close the ignition key three times in rapid succession, as follows: open/close—open/close—open. At this point the engine warning light will flash a DTC which indicates the fault in the EFI system. Refer to the attached fault code table to identify the corresponding problem.
The engine warning light will emit a sequence of flashing lights. If the light flashes 10 times, the translated number is 0. If the light flashes one time, the translated number is 1, et cetera. For example, if the MAP/MAT sensor is disconnected, or the connector is shorted to ground, the engine warning light will flash in the following manner (This is an example only).
The engine warning light will flash 10 times: The first number of the DTC is 0
After an interval of 1.2 seconds, the engine warning light will flash 1 time: The second number of the DTC is 1
After an interval of 1.2 seconds, the engine warning light will flash 10 times: The third number of the DTC is 0
After an interval of 1.2 seconds, the engine warning light will flash 7 times: The fourth number of the DTC is 7
The resulting DTC is P0107.
In my case, I had an ignition coil failure that threw a code. When I checked, it was in this sequence: 10, 3, 5, 1. The 10 represents a 0. So the actual code was 0351. I fixed a loose wire and rebooted my ECU using the procedures I detailed below.
If there are other fault codes, the engine warning light will flash the next code in 3.2 seconds after finishing P0107. After all existing fault codes are flashed, the engine warning light will repeat the fault codes, in sequence, until the ignition key is turned off.
To clear fault codes you need an OBDII Fault Code reader and a Delphi 6 pin connector adapter cable that you have to order from China and wait 8 weeks…or you can simply reboot the ECU using the instructions detailed below.
Rebooting the ECU
Perform the following steps to reboot the ECU.
1. Turn off the ignition for 15 seconds.
2. Turn the ignition on/off for 5 cycles. Make sure each cycle lasts about ½ second, verifying the start of the fuel pump for each cycle. If the fuel pump doesn't start during any cycle, begin the entire reboot procedure from the beginning.
3. Turn off the ignition for 15 seconds.
TPS (throttle position sensor) re-learn procedure after rebooting ECU.
This must be done after replacing the TPS or the ECU....and after rebooting an ECU! Source: ECU Hacker. Reworded slightly to make it a more sensible flow in my mind. 1. Turn idle screw one full turn clockwise before starting 2. Start engine, run at low idle until engine warms. Maybe a couple mins. 3. Idle should be above 1500 rpm. If it isn’t, turn it up to 1700 then shut engine off. Do another reboot of ECU. 4. Restart engine and let it stabilize at 1700 rpm. Then turn idle screen down to 1500 rpm and let it stabilize for a few seconds. Once it stabilizes, set to final recommended idle speed for your machine. The placard under your seat should show idles speed, valve adjustment, spark gap, etc. mine shows 1600 rpm.
5. Shit it down. Wait 10-15 second before restarting. Procedure is now complete. Final Notes:
I have included pictures of the OBDII connector and the Delphi 6 pin connector in case anyone wants to go buy your own and build a connector to use for an OBDII reader. You can do the same thing with code reading and resetting using your check engine light on your dash. But some folks want to do it with code readers.
Hope this helps some folks. I have been scratching my head until tonight on how to reset my fault codes. Then I discovered all of this on some motorcycle forums. The source for the diagrams is here:
https://netcult.ch/elmue/HUD ECU Hacker/
I am not a technician. I do not endorse any manufacturers. I am just an OCD driven old man that likes to work on my own crap. I have lots of time to figure things out. If you run into a problem that stumps you, give me a shout. I may be able to give you some ideas. Or maybe not. This system is essentially an OBDI and very simplistic. If you are methodical and patient, most problems can be figure out thru a process of elimination.
Addons for 2022 Tracker 800sx crew, and looking for other alternatives to OEM. Turn signals, wiring it up.By Greg In Iowa
10:31 AM (9 minutes ago) I'm always trying to add more options, when it comes to parts, fluids or anything else, if it's good quality and saves me money. I want it to look right also. My new 800sx crew is just about broken in. I'll use Amsoil 0w-40 engine oil. After pounding around in Google for a while, I found a couple of oil filters other than Chery.
I was hoping for a little more quality, and found Wix 51394. I got it at O'Reilly's for 13 American. I wanted to be sure, so I stopped into Bass Pro. I asked for an oil filter for my machine. The guy went over to the shelf and opened an oil change kit from Tracker. (You know, the oil and filter kit for 69.99.) Inside the box was a Wix 51394. I'll change the differential and trans-axle fluids at the same time. I think I've found some fluids, other than Tracker/Artic Cat.( I did end up with Artic Cat trans-axle fluid, still looking for a good alternative.) Has anyone already found something? It would be great to know?
I also put a Kenimoto turn signal/horn kit on it. I did have to lengthen the wires from the switch on the steering column into the firewall and then back to the rear turn signals. I went to the battery for power. It looks and works great. You will see that my turn signal indicator lights are out on the hood. I'll have to extend the wires to get them into the cab area. As it works out, I like the added lights outside on the front and I see the lights easily.
I bought a 6x10 canvas tarp, added a couple of grommets, used the black rubber stretchy tie downs and I now have a nice top that does all I need it to do until I get a hard top. I did this for under 60.00.
I did roll roll the front with a 1/2" fiberglass rod that I got at the farm and home store. I used 1/2" insulated clamps from the electrical isle. I did have to puncture the canvas for the screws. On the back I used one of the bicycle/moped fiberglass flag poles. It stays tight, keeps the sun off the passengers and would repel rain.