Speed Sensor Issue

[Lizard]

My Trike is in for no Speedo readings for the 2nd time in 200 miles. First time, they replaced the sensor, that lasted 200 miles. Now, it threw a code, speed sensor low voltage. Anyone have any idea what that might be other than an ECM issue?

 

[Bikerbozo]

When in doubt, bad ground.

 

[PIGGI]

My Trike is in for no Speedo readings for the 2nd time in 200 miles. First time, they replaced the sensor, that lasted 200 miles. Now, it threw a code, speed sensor low voltage. Anyone have any idea what that might be other than an ECM issue?

Had that happen years ago, turned out to be too much metal flakes in the trans oil. Built up on the magnetic sensor. Drain and flushed tranny to fix.

 

[Mr.Wizard]

Your TG is soooo strong and speedy that the speedo can't keep up !

Bozo and PIGGI could be right... easy to check for a dirty sensor, pull and clean, reset code.

I'm leaning to the ground issue or bad connector... which connector though? The speed sensor goes through the ECM and speedo. That won't be fun to find. It may just be one of the two push in connectors at the top... rain or corrosion.

 

[Lizard]

Update:

Got a call today, they found the new sensor fouled with oil Oil had pushed into the connector itself, through the sensor. They wanted approval to drain the gear oil I had in and put in Formula +, along with a new sensor, as they were guessing the gear oil was too thick. I approved, however, I did tell them that there is a drain in the top of the tranny that is supposed to prevent pressure build up as the oil gets hot. If a bug had crawled in, died, and blocked it, they oil would do exactly what it did. They are gonna check that, probably tomorrow. (Thanks for the input, Wiz).

I had 75W-90 gear oil in it. I usually use Redline Shockproof, but couldn't find it when I needed it. Redline is thicker, and I've used it for 10's of thousands of miles. Gear oil being too thick makes absolutely no sense to me.

 

[Gorilla]

Nothing is perfect. A defective part is possible.

 

[Lizard]

2 in a row?

 

[Sloufoot]

They will tell you anything when they can't figure out what the hell is going on. Just as long as they have a good story most people will believe it.
Also they have to write up a good story on the warranty report. While I was doing warranty work as a line mech. I wrote all kinds of things for the district rep to read. He always told me I had the sharpest pencil he knew of !!
Some of the best money to be made as a mechanic is warranty work. Much cleaner than working on some old dirty rig !