AFM Ground Wire Location?

[chaseincats]

Hi guys,

I am going through the AtlanticZ contact cleaning checklist (http://www.atlanticz.ca/zclub/techtips/electricalconnections/index.html) and have finished all but the AFM ground which I can't find.

Does the 78 with the 5-pin AFM not have a ground wire?

 

Any ideas?

 

-chase

[chaseincats]

I noticed that a lot of pictures show the AFM having a ground strap that goes to the bracket - mine doesnt have one and doesn't even touch the bracket...

[EuroDat]

There is a wire with two round eye terminal about 15cm long. It connects under the efm and to one of the mounting bolts. It grounds the afm because the afm is mounted with rubber vibration dampers and rubber hoses. The air passing through it can built up static electricity and effect the circuits.

You can see it in this photo

 

Edited August 11, 2020 by EuroDat

[chaseincats]

I don't see one attached to the bottom of my AFM.  Is that why it runs fine?  It sounds like a good idea to have one of those so should I try and add one of these?

[EuroDat]

Here is a better photo

[chaseincats]

Ah ya, I definitely don't have that since it's not bolted to the bracket at all...

Edited August 11, 2020 by chaseincats

[EuroDat]

You can make one very easily with two 8mm eye terminals. It is about 10cm long iirc

Edited August 11, 2020 by EuroDat

[chaseincats]

On 8/11/2020 at 1:14 PM, EuroDat said:

You can make one very easily with two 8mm eye terminals. It is about 10cm long iirc

Good to go.  I checked continuity from the AFM housing to the plate welded to the car that the screw screws into.  Is that good enough or do I need to check continuity between the plate and something else?

[EuroDat]

That should solve your problem. That plate is spot welded to the inner body.

[chaseincats]

24 minutes ago, EuroDat said:

That should solve your problem. That plate is spot welded to the inner body.

Awesome, thanks