No Spark!! 2nd Opinion needed.

[BigB]

Just finished the WP install. Everything seems to work except bike wont run.

Have lights and everything just no spark.

I tested for power at the coil. Test OK.

I found the no spark test post from Moe and tested the cam sensor. My results were:

1st test. Neg test lead to the backing plate and the Pos test lead to each of the 3 wires from the sensor. Tested open.

2nd test. Pos test lead to the green wire neg to the black wire. Test read 600 Kohms.

3rd test. Pos lead to the black wire neg to the green wire. Test read open.

It is like the opposite of the results that Moe posted.

Just wanted to check and see if I might have crossed a wire when puttting in the WP kit. Or get conformation of the cam sensorbeing either good or bad. Note the bike did not run before I started the WP kit. It had headlight issues and had died on the road on my last ride.

This was a new cam sensor from BigDog installed about 1000 miles ago.
Thanks
B
:bang:

 

[BigDogBro1]

Make sure all Deutsch pins are seated in housings fully.

 

[DRBarnhart]

I found the no spark test post from Moe and tested the cam sensor. My results were:
1st test. Neg test lead to the backing plate and the Pos test lead to each of the 3 wires from the sensor. Tested open.

That's a good thing! :up:

2nd test. Pos test lead to the green wire neg to the black wire. Test read 600 Kohms.

It should be an "open" so your result isn't so good... :down:

3rd test. Pos lead to the black wire neg to the green wire. Test read open.

An "open" here is also bad.

It is like the opposite of the results that Moe posted.

While Moe was reposting what I had written, he did it accurately... So unless you have the wires crossed on your meter or the cam sensor is still plugged in to the bike it sounds like you have bad sensor!

Just wanted to check and see if I might have crossed a wire when puttting in the WP kit.

The WP kit has nothing to do with the results you should be getting if you've done exactly as I've said.

Or get conformation of the cam sensorbeing either good or bad.

Assuming everything (the meter leads with the sensor disconnected from the bike) it sounds like you've confirned it yourself!

Note the bike did not run before I started the WP kit. It had headlight issues and had died on the road on my last ride.

The only "issue" the WP kit will fix is a bad EHC. If you have/had other problems you'll still have to fix them for the bike to work right. :bang:

This was a new cam sensor from BigDog installed about 1000 miles ago.

It seems like the heat from the engines and/or exhaust pipes really take their toll on the cam sensors in these bikes. I'd check everything again to make sure but it seems like you may already have your answer... :2thumbs:

Dennis

 

[DRBarnhart]

Make sure all Deutsch pins are seated in housings fully.

Especially the ones supplying power and ground to the ignition module! Originally the power wires were at pins 13 & 14 on the EHC but now should be hooked to pin #5 of plug #3 of the WP. The ground WAS supplied at pin 37 which I'm thinking should now be combined with all the other grounds.

Dennis

 

[Slider]

Try to just turn on the key and press the start button. Don't press the run button first.

 

[BadBrad]

Try to just turn on the key and press the start button. Don't press the run button first.

Slider is right about that BigB. When you convert to WP, you no longer use the run button.

 

[BigB]

Thanks for help guys!


In a PM with Jake he mention he knew of a couple ignition modules that were taken out when the EHC went out and told me to verify the led light flashes when cranking.

HERE is the latest.
Red light flashes now. Not sure if it was before or not . At both red and yellow wires going to coil I have power with key on and when cranking. Tested spark at plug again and now I have spark.

I know my eyes are going but I even did the idiot spark test and held the plug yesterday. I had none.

All I did was unplug the Cam sensor at the ignition and in the wire harness under the motor. I did take the sensor out and inspect. looked fine, not cracked like my last one.

So now I have spark and don't know why I didn't yesterday.

Any thoughts?

 

[seatmaker]

Mine was the ignition when the EHC went out

 

[BigB]

Finished and test road today. Everything worked great.

Thanks for all the help!!!!!!

B

 

[Moespeeds]

Just for the archives, I've seen 2 bikes that wiped the ignition when the EHC went, or the other way around, who knows.

 

[BigDogBro1]

You may have a pin(s) in those connectors that is making intermittent contact causing the no spark problem. Try some dielecric grease in the connections to help connections and help seal outside water/dirt from corroding the contact pins.

 

[DRBarnhart]

Just for the archives, I've seen 2 bikes that wiped the ignition when the EHC went, or the other way around, who knows.

Considering the EHC only supplies power and ground to the ignition module I'd think it's more likely that a problem within the module (such as drawing too much power) would take out the EHC than vice versa...

:zz2cents:

Dennis

 

[Slider]

Now finish the job with a crane or dyna ignition module. You'll be amazed.

 

[BigB]

How AMAZED?

 

[JRosales]

I have just ran to the same issue here!

I have just completed my WP installed and have no spark to plugs... I guess my next step is to change the Dyna ignition module...

If you look at the previous threads, I have the green Dyna ignition module... Should I upgrade?

Thanks for the help in advance!

 

[DRBarnhart]

I have just completed my WP installed and have no spark to plugs...

Did the bike run before the WP install?

I guess my next step is to change the Dyna ignition module...

What kind of troubleshooting have you done?

If you look at the previous threads, I have the green Dyna ignition module...

I see a gray Thunderheart module in the first pic, am I missing something?

Dennis

 

[JRosales]

NO SPARK, AGAIN!

The bike ran..
-new ignition coil.
-New spark plugs and cables.
-Checked fire from the battery (with a tester) to coil connections, checked good.
-When you say (you see a thunderheart module) Does it need troubleshooting as well, maybe replacing the thing?

All the lights work... I have double check all the connectors and connections... all checks.. except no spark!!!!!:bang::bang::bang::bang::bang:

 

[dnespolo]

My bike had the same problem not sparks was the shaft crank sensor

 

[DRBarnhart]

The bike ran..
-Checked fire from the battery (with a tester) to coil connections, checked good.
-When you say (you see a thunderheart module) Does it need troubleshooting as well, maybe replacing the thing?

Here's couple of things to check:

On connector #3 (6 pin connector) of the WP do you have TWO red wires connected to pin 5?

Assuming you do, unplug the 4 pin connector from the Thunderheart unit and see if you have power to the red wire on the bike side of that connector at the same time you have power to the coil. (You should...)

Dennis

 

[Jeff585]

No spark slightly different

Ok, I am a newbie here and to Big Dogs. Last year I bought a 2002 pro sport. Getting it ready for the upcoming summer I couldn't get it to start. While I was testing to see if one of the plugs was getting juice, everything went out. I lost all power. Is this an EHC problem as I suspect?? Opinions?? On that note, I looked at Wire Plus for a replacement module and could only find 2003. Does anyone know if that will work in an '02?? If not, any suggestions for a module? I did several searches on the forums already and haven't found anything that helps. Thanks in advance.