Ducati Monster Forum

Moto Board => Tech => Topic started by: 696DCRider on August 25, 2010, 11:48:09 AM

Title: Low Battery causes bike to lose power?
Post by: 696DCRider on August 25, 2010, 11:48:09 AM
Recently, my friend helped me install an HID kit in my headlight.  I thought I had all the wiring done correctly, and I installed a relay as well.  I noticed afterwards, that my computer panel was flickering when I turned the bike on.  Well that was last week.

Today, I decided to ride to work.  As I hopped on the highway, I see my EOBD(Error on Board Diagnostic or something like that) light go on, and all of a sudden my bike was at like half power.  I was able to ride it like that for a bit until it just died on me.  The engine was bogging down.  I determined that battery caused the EOBD light to come on because the HID kit was drawing power.  My question though is why would my bike lose power like that?
Title: Re: Low Battery causes bike to lose power?
Post by: Speeddog on August 25, 2010, 12:12:34 PM
Could be:

A) Voltage got low enough that the ECU either went into 'limp-home' mode, or flat out started working improperly.

B) There is something else wrong, coincidentally it happened after you put the HID on.

Title: Re: Low Battery causes bike to lose power?
Post by: 696DCRider on August 25, 2010, 12:41:07 PM
A is an interesting theory.  My friend who used to be a car mechanic was telling me how some cars have this mode: limp mode.  I never knew something like this existed.  Does anyone know for sure if the engine goes into some sort of limp mode for sure when it throws an error.

I really just want to know like you said if there is something else wrong or not.  I also want to know so in the future if it happens again, I will be prepared to handle it.

Quote from: Speeddog on August 25, 2010, 12:12:34 PM
Could be:

A) Voltage got low enough that the ECU either went into 'limp-home' mode, or flat out started working improperly.

B) There is something else wrong, coincidentally it happened after you put the HID on.