Small Speedo Problem

[tommyboyblitz]

I finally got my speedo working. It works great but sometimes it flips out and bounces up to a high speed then back down to what it should be.

Happens after heavy acceleration I think, but isn't very consistent and a bit random.

Is this normal for the emu? something to do with the signal wire? or could it be my sensor?

Cheers

[ihiryu]

Could it be noise in the wire? Is it shielded?

[Jadzwin]

Look at the log if the VSS channel is smooth

[tommyboyblitz]

Hi sorry for the late reply, but i finally fixed this problem, i was living with it for along time thinking it was just a dodgy wire or speed sensor in my gear box.

The problem got alot worse yesterday to the point where i had to limp the car home, 2 of my new coil packs had developed cracks. Being new I never checked them and while checking ht leads and revving the engine i see the back one arcing out onto the head. at the same time i was getting pops from the exhaust which are at the same time the speedo would jump about. This is probably due to unshielded speed sensor cable also.

Anyway just thought i would share my findings in case anyone else has a similar problem.

[Jadzwin]

You should find problem why your coils cracked. Probably too much dwell