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Hey guys l! New to the forum page. I recently bought a 07 night train and was riding it home when it suddenly started running like garbage. Running as if it had a bad plug. Limped it home and looked at the diagnostics code and was throwing P0262 (front injector high) so I changed the plugs. Old ones weren’t bad and got a stock set of new injectors from Harley and replaced them. Cleared the code and started the bike and no change. So I checked the battery(still good) checked the ground wire and cleaned it up. Then went through and inspected the whole bike. The 02 sensor was loose I could move it with my fingers tighten that back up and started it. No luck through same code. Started checking wire and found that the guy before installed an after market license place bracket and ran the wires through the rear fender. The tire ground 2 of the 3 wires but the lights and everything still work. He also used speaker wire to splice them so I’m assuming he did this exact thing once before. Would than have any effect on how my bike would run? I’m going to fix this issue but was wondering if that would do something to change the way my bike runs.
Hey guys l! New to the forum page. I recently bought a 07 night train and was riding it home when it suddenly started running like garbage. Running as if it had a bad plug. Limped it home and looked at the diagnostics code and was throwing P0262 (front injector high) so I changed the plugs. Old ones weren’t bad and got a stock set of new injectors from Harley and replaced them.Cleared the code and started the bike and no change. So I checked the battery(still good) checked the ground wire and cleaned it up. Then went through and inspected the whole bike. The 02 sensor was loose I could move it with my fingers tighten that back up and started it. No luck through same code. Started checking wire and found that the guy before installed an after market license place bracket and ran the wires through the rear fender. The tire ground 2 of the 3 wires but the lights and everything still work. He also used speaker wire to splice them so I’m assuming he did this exact thing once before. Would than have any effect on how my bike would run? I’m going to fix this issue but was wondering if that would do something to change the way my bike runs.
I hate it when someone hacks up a bike's electrical harness.... That PO needs a slap..
As to the injector... after you replaced the old ones with new injectors, took it for a ride, and it still ran crappy...... does it still throw the P0262 code?
If so, try a noid light to make sure the signal is getting to the injector.
If that checks OK, check the injector connector to ensure that a pin didn't get bent when you installed the new one, causing a bad connection. If that checks OK, check the injector.. it is possible, however improbable, that you got abad one
If the injector isn't getting a signal: Check the wiring between the ECM and injectors. Look closely, a wire under stress can have the wire separate under the insulation. You could start with a visual check, then a continuity test between the ECM & injector. Eventually checking the ECM output pin to the injector to ensure the ECM is sending the injector a signal.
If you are no longer getting the P0262 code, and verified a signal form the ECM to the injector, you may have a fuel delivery issue... Time to check fuel pressure and inspect the fuel system from the tank to the injectors...
I strongly agree with slapping the person responsible for the splice
So yea I changed both injectors. Brand new from Harley. I haven’t rode the bike because it runs so bad. When I was riding it home from a trip to town I took a corner and downshifted and it seemed as if it was running off one cylinder or had a bad spark plug. I limped it home and when I got close to home it went back to normal and seemed fine. I put it in my shop and turned it off. Started it back up and it was running like **** again and it threw the code P0262. I then went And got plugs from Harley and replaced them and tried it again. No change. Then read the code P0262 (front injector high) so I went back to Harley and picked up two brand new injectors that weren’t cheap lol Put those in. Cleared the code and started it. Same thing no change. Checks my ground wire and cleaned the connections. And looked for any messed up wires and made sure the connections to the injectors were on and all the way down. While checking the bike over I found that my 02 sensor that goes into the exhaust was look. I unscrewed it part way with my finger and then fully tightened it back down with a wrench. Thought maybe that way it. So I started it again. Same thing. So I I went looking once more and found that lovely splice job. I have not ride it since I first put it in the garage. One thing I noticed when I start it last I out my hand down at the exhaust to feeling the air pushing out and one pipe was warm and the other was blowing cold??? Other than that I haven’t tested anything
So yea I changed both injectors. Brand new from Harley. I haven’t rode the bike because it runs so bad. When I was riding it home from a trip to town I took a corner and downshifted and it seemed as if it was running off one cylinder or had a bad spark plug. I limped it home and when I got close to home it went back to normal and seemed fine. I put it in my shop and turned it off. Started it back up and it was running like **** again and it threw the code P0262. I then went And got plugs from Harley and replaced them and tried it again. No change. Then read the code P0262 (front injector high) so I went back to Harley and picked up two brand new injectors that weren’t cheap lol Put those in. Cleared the code and started it. Same thing no change. Checks my ground wire and cleaned the connections. And looked for any messed up wires and made sure the connections to the injectors were on and all the way down. While checking the bike over I found that my 02 sensor that goes into the exhaust was look. I unscrewed it part way with my finger and then fully tightened it back down with a wrench. Thought maybe that way it. So I started it again. Same thing. So I I went looking once more and found that lovely splice job. I have not ride it since I first put it in the garage. One thing I noticed when I start it last I out my hand down at the exhaust to feeling the air pushing out and one pipe was warm and the other was blowing cold??? Other than that I haven’t tested anything
It sure seems that one cylinder isn't firing. Did you check the new plugs to see if one was wet with gas?
Might be worth verifying you have fuel to both cylinders.
Because of the code, I would also make sure no pins are bent or loose in the injector connector. If they are, and you push the connector all the way on, they still won't make contact.
If the connector pins are OK, then I would use a noid light to ensure the injector is getting a signal from the ECM to fire....
Or, if you are electrically gifted (I am not), get the electrical diagnostic manual for your bike, and go right to the source. Check the output signal from the ECM to the injector for the proper signal/voltage...
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2007 night train issues
