madbiker
Well travelled
- Location
- United Kingdom
I am posting this in case anyone else gets this weird starting issue it might help them diagnose the problem.
So I have had this bike for over two years and in over 30,000 miles of use I have never had any issues with starting it.
About two months ago I parked it and everything was OK. Two weeks later I tried to start it but there was a problem.
The bike would start and run for one or two seconds before cutting out.
The MIL light was lit showing an issue. I checked the long/short codes and it gave the following.
3 Long & 3 Short (Fuel Injector Circuit)
3 Long & 7 Short (Ignition Coil Circuit)
4 Long & 1 Short (Fuel Pump Relay Circuit)
5 Long & 4 Short (EXAI Circuit)
The fuel pump was priming. I changed both relays (2018 BS 4 model) I tested the resistance on the fuel injector and it was good.
I removed the spark plug and grounded it but no spark. Now this I found strange as the bike would start and run for a few seconds. I could not understand why it would do this but I did not get a spark when the plug was out and grounded.
I tested the coil resistance and it was good.
I could not start the bike so I could not check the O2 sensor but f it had failed that would not prevent the bike from starting.
I changed the original 4 year old battery for a new one. I changed the spark plug for a new one but still there was no change in tha it would start them immediately cut out..
As I had no spark I fitted a new coil but no difference. I tested the power and earth connection to all of the above and they were all getting power. I checked the power and earth connections to the ECU which were also good. The ECU circuit diagram shows all of these sensors on the same circuit so I thought that maybe the ECU had an issue.
I like to do all my own maintenance but not having a diagnostic computer I had to bite the bullet and put it in to the RE dealer in Katowice.
After a diagnostic check it turned out that the both the fuel injector and O2 sensor had failed. They replaced the injector from a new bike that they had in stock.
The O2 sensor is still malfunctioning and the MIL light is still on but at nearly 200 Euros for a new one I think that I shall just remove it and fit an elimination kit.
I still do not know why it registered a fault with the ignition coil circuit and the fuel pump relay circuit when they were both OK. I can only presume that since all of these appear to be on the same internal circuit in the ECU the failure of two of them caused the additional false error codes to be shown.
Hope my issue adds to the knowledge base for the Himalayan.
So I have had this bike for over two years and in over 30,000 miles of use I have never had any issues with starting it.
About two months ago I parked it and everything was OK. Two weeks later I tried to start it but there was a problem.
The bike would start and run for one or two seconds before cutting out.
The MIL light was lit showing an issue. I checked the long/short codes and it gave the following.
3 Long & 3 Short (Fuel Injector Circuit)
3 Long & 7 Short (Ignition Coil Circuit)
4 Long & 1 Short (Fuel Pump Relay Circuit)
5 Long & 4 Short (EXAI Circuit)
The fuel pump was priming. I changed both relays (2018 BS 4 model) I tested the resistance on the fuel injector and it was good.
I removed the spark plug and grounded it but no spark. Now this I found strange as the bike would start and run for a few seconds. I could not understand why it would do this but I did not get a spark when the plug was out and grounded.
I tested the coil resistance and it was good.
I could not start the bike so I could not check the O2 sensor but f it had failed that would not prevent the bike from starting.
I changed the original 4 year old battery for a new one. I changed the spark plug for a new one but still there was no change in tha it would start them immediately cut out..
As I had no spark I fitted a new coil but no difference. I tested the power and earth connection to all of the above and they were all getting power. I checked the power and earth connections to the ECU which were also good. The ECU circuit diagram shows all of these sensors on the same circuit so I thought that maybe the ECU had an issue.
I like to do all my own maintenance but not having a diagnostic computer I had to bite the bullet and put it in to the RE dealer in Katowice.
After a diagnostic check it turned out that the both the fuel injector and O2 sensor had failed. They replaced the injector from a new bike that they had in stock.
The O2 sensor is still malfunctioning and the MIL light is still on but at nearly 200 Euros for a new one I think that I shall just remove it and fit an elimination kit.
I still do not know why it registered a fault with the ignition coil circuit and the fuel pump relay circuit when they were both OK. I can only presume that since all of these appear to be on the same internal circuit in the ECU the failure of two of them caused the additional false error codes to be shown.
Hope my issue adds to the knowledge base for the Himalayan.
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