Engine diagnostic light.

Romain · Aug 26th, 2008, 09:25 AM

The engine diagnostic light comes on after a few minutes running.
I have just had a 5000miles service but I have checked the oil which looks fine just in case. If i stop the engine, turn the ignition off and then start again, the light goes off, at least for a while. The engine seems to behave and sound normally.
I called my local HD to book a check up and they told me that this sometimes happen and that I shouldn't worry too much and that it was OK to ride.
I'd hate to blow an engine or cause any damage to it.
Are they right and what could be the cause of the trouble.

glider · Aug 26th, 2008, 09:30 AM

The light is telling you something happened in the past if it goes out, if it stays on it is a current fault.

Check out the cause using this...

04-07 HD DTC Codes and Activation - Harley Davidson Community

R. Lewis · Aug 26th, 2008, 09:35 AM

Quote:

Originally Posted by Romain

The engine diagnostic light comes on after a few minutes running.
I have just had a 5000miles service but I have checked the oil which looks fine just in case. If i stop the engine, turn the ignition off and then start again, the light goes off, at least for a while. The engine seems to behave and sound normally.
I called my local HD to book a check up and they told me that this sometimes happen and that I shouldn't worry too much and that it was OK to ride.
I'd hate to blow an engine or cause any damage to it.
Are they right and what could be the cause of the trouble.

IMO ----- any wrench-bender takes that stance on a potential problem isn't worth his salt and I don't care if it's a HD shop or a indy.!!! It could be a multitude of things from a simple loose wire to something inside the jugs.. Other than an oil change ,what else have you had done to it???

Romain · Aug 26th, 2008, 09:42 AM

I had new front brake pads and spark plugs fitted plus the oil change and a new oil filter, the hefty bill tells me. Thanks for the help, by the way.

glider · Aug 26th, 2008, 09:44 AM

Check to see that the plug wires are on all the way and the tips of the plugs where the wires attach aren't loose.

Romain · Aug 26th, 2008, 09:53 AM

I'm just printing the codes (thanks for the link Glider.) and as soon as it's done I will go and check it out.
I'm reasonably handy with a spanner but I am not yet familiar with my machine and as it is just still under guarantee I am a little cautious about tinkering with it just yet.

Romain · Aug 26th, 2008, 11:18 AM

Man! I didn't even realised that there was a built in diagnostic system, very impressive.
I followed the procedure and it gave me the error code P0134 : Front 02 Sensor low (lean).
Am I right in assuming that it is an injection related problem.
Is it lethal? Should I ride the bike to the shop or get it on a transporter?
The plug wires were OK.

glider · Aug 26th, 2008, 02:40 PM

Could be the injector but most likely the 02 sensor itself. Call the dealer and let them make the decision to pick it up or you ride it. This way any damage is on them.
Probably not a problem to ride it in anyway.

Amazing what you can do with just a little instruction...next is the servicing of the bike BY YOU!

Romain · Aug 30th, 2008, 02:33 PM

Just picked the Bike from the local HD repair shop. They confirmed the diagnostic. The O2 sensor had packed up and needed to be replaced. No charge as the Bike is still (just) under guarantee.
As soon as it runs out, I will take out my tool kit, look forward to it.

glider · Aug 30th, 2008, 02:34 PM

Glad you got hooked up.

Aug 26th, 2008, 09:25 AM	#1 (permalink)
Romain Contributor$ Ride: 2007 Sportster XL1200C Join Date: Aug 24th, 2008 Posts: 144 My Mood:	Engine diagnostic light. The engine diagnostic light comes on after a few minutes running. I have just had a 5000miles service but I have checked the oil which looks fine just in case. If i stop the engine, turn the ignition off and then start again, the light goes off, at least for a while. The engine seems to behave and sound normally. I called my local HD to book a check up and they told me that this sometimes happen and that I shouldn't worry too much and that it was OK to ride. I'd hate to blow an engine or cause any damage to it. Are they right and what could be the cause of the trouble.

Aug 26th, 2008, 09:30 AM	#2 (permalink)
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 11,625 My Mood:	Re: Engine diagnostic light. The light is telling you something happened in the past if it goes out, if it stays on it is a current fault. Check out the cause using this... 04-07 HD DTC Codes and Activation - Harley Davidson Community __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Aug 26th, 2008, 09:42 AM	#4 (permalink)
Romain Contributor$ Ride: 2007 Sportster XL1200C Join Date: Aug 24th, 2008 Posts: 144 My Mood:	Re: Engine diagnostic light. I had new front brake pads and spark plugs fitted plus the oil change and a new oil filter, the hefty bill tells me. Thanks for the help, by the way.

Aug 26th, 2008, 09:44 AM	#5 (permalink)
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 11,625 My Mood:	Re: Engine diagnostic light. Check to see that the plug wires are on all the way and the tips of the plugs where the wires attach aren't loose. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Aug 26th, 2008, 09:53 AM	#6 (permalink)
Romain Contributor$ Ride: 2007 Sportster XL1200C Join Date: Aug 24th, 2008 Posts: 144 My Mood:	Re: Engine diagnostic light. I'm just printing the codes (thanks for the link Glider.) and as soon as it's done I will go and check it out. I'm reasonably handy with a spanner but I am not yet familiar with my machine and as it is just still under guarantee I am a little cautious about tinkering with it just yet.

Digg this Post to del.icio.us Newsvine Yahoo Bookmarks Technorati Google Bookmarks Facebook StumbleUpon Live Bookmarks What is this?
	Thread Tools	Display Modes

Aug 26th, 2008, 11:18 AM	#7 (permalink)
Romain Contributor$ Ride: 2007 Sportster XL1200C Join Date: Aug 24th, 2008 Posts: 144 My Mood:	Re: Engine diagnostic light. Man! I didn't even realised that there was a built in diagnostic system, very impressive. I followed the procedure and it gave me the error code P0134 : Front 02 Sensor low (lean). Am I right in assuming that it is an injection related problem. Is it lethal? Should I ride the bike to the shop or get it on a transporter? The plug wires were OK.

Aug 26th, 2008, 02:40 PM	#8 (permalink)
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 11,625 My Mood:	Re: Engine diagnostic light. Could be the injector but most likely the 02 sensor itself. Call the dealer and let them make the decision to pick it up or you ride it. This way any damage is on them. Probably not a problem to ride it in anyway. Amazing what you can do with just a little instruction...next is the servicing of the bike BY YOU! __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Aug 30th, 2008, 02:33 PM	#9 (permalink)
Romain Contributor$ Ride: 2007 Sportster XL1200C Join Date: Aug 24th, 2008 Posts: 144 My Mood:	Re: Engine diagnostic light. Just picked the Bike from the local HD repair shop. They confirmed the diagnostic. The O2 sensor had packed up and needed to be replaced. No charge as the Bike is still (just) under guarantee. As soon as it runs out, I will take out my tool kit, look forward to it.

Aug 30th, 2008, 02:34 PM	#10 (permalink)
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 11,625 My Mood:	Re: Engine diagnostic light. Glad you got hooked up. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Engine diagnostic light.

Electrical