Advice needed for grounding points

retroid · Post by **retroid** » Sun Feb 22, 2009 4:48 am

Hello eveybody! Many thanks to Hondata for having such a great costumer suport as this forum! Full RESPECT! :D

I soon will go for K Pro, but first I want to "prepare" the car for it. I want to instal some gauges (oil temp/pressure) and a wideband (I think the zeitronix one)....

I also want to make a grounding kit. We al know the benefits of this kits and I want to add 3 more grounding points:

first I want to conect this, directly to the negative battery instead of valve cover

the other 2 will be:

the ECU case

and this :

(the black wire in the picture is from a vtec light)

It's safe? What do you think? Many thanks! :D

Post by **Spunkster** » Mon Feb 23, 2009 10:28 am

The ECU case does not need to be grounded.

The factory grounds are all you need. Make sure you have the timing cover side ground and the transmission grounded to the chassis.

Post by **Hondata** » Mon Feb 23, 2009 10:52 am

I would recommend cleaning the stock ground points and doing nothing else. There are three critical grounds:
- transmission to chassis
- wiring harness to cylinder head
- chassis to timing cover (via engine mount)
Don't ground the ECU case.

retroid · Post by **retroid** » Mon Feb 23, 2009 2:24 pm

Thank you! :)

Garrett_si · Post by **Garrett_si** » Mon Feb 23, 2009 4:59 pm

why using a zeitronix wideband?

the OEM wideband does a great job

fonz600 · Post by **fonz600** » Tue Feb 24, 2009 1:30 am

Cause he has a EUDM EP3 which comes with a narrowband.