Tricky No Spark Situation
#1
Tricky No Spark Situation
02 F4i with 27k on the clock.
Alright, so I'm certainly no pro, but I can usually handle doing intermediate level stuff on my bike. I decided to replace the cam chain tensioner lifter before the season starts up here in Maine, and figured I'd do the air filter and plugs while I was in there. Got the cct replaced, put new plugs in and put everything back together and went to start her up and it wouldn't fire. pulled it back apart and checked for spark, and nothing on any cylinder, with any combination of new or old plug, this coil here, that one there.. I tested the coils and they all have good resistance and all register roughly 12 volts when the ignition is on.. so I'm a little lost as to why I'm not getting spark. I've made sure everything I unplugged while taking the air box and fuel rail off got replugged... not sure where to go from here. Any and all ideas will be super appreciated!
Thanks!
Alright, so I'm certainly no pro, but I can usually handle doing intermediate level stuff on my bike. I decided to replace the cam chain tensioner lifter before the season starts up here in Maine, and figured I'd do the air filter and plugs while I was in there. Got the cct replaced, put new plugs in and put everything back together and went to start her up and it wouldn't fire. pulled it back apart and checked for spark, and nothing on any cylinder, with any combination of new or old plug, this coil here, that one there.. I tested the coils and they all have good resistance and all register roughly 12 volts when the ignition is on.. so I'm a little lost as to why I'm not getting spark. I've made sure everything I unplugged while taking the air box and fuel rail off got replugged... not sure where to go from here. Any and all ideas will be super appreciated!
Thanks!
#2
#3
Thanks for the reply, 74 Demon. You'll have to humor me as I have lots to learn about electrical stuff in general, and the electrical system of my bike specifically.
Where is the crank sensor, and the coil/injector harness, and are they things that I would potentially have unplugged in order to do the job I did?
And how does one check for a pulse signal?
Does it make sense that I have power at the coils when the ignition is on, but no spark when I crank?
Thanks!
Where is the crank sensor, and the coil/injector harness, and are they things that I would potentially have unplugged in order to do the job I did?
And how does one check for a pulse signal?
Does it make sense that I have power at the coils when the ignition is on, but no spark when I crank?
Thanks!
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