First of all I have a 6th gen I4 Accord (F23A1):



I'm using 4ga wires + connectors that are both crimped+soldered using a propane torch. However, I'm still not clear on a few ground points.

So far I have:
1. Upgraded Driver's side engine mount->chassis ground
2. Upgraded Battery->Chassis ground
3. Created Battery->Cylinder Head ground wire (not installed yet)

I am not clear about:
1. Throttle body ground
2. Intake Manifold ground
3. Alternator ground
4. Valve cover ground
5. VTEC solenoid

Will it be alright to connect a ground wire to any point on the throttle body? Or does it have to be closer to the sensors where the intake pipe connects. Or should I ground the actual intake manifold? Is it ok to daisy chain this wire, or should I just run it directly to the battery?

For the alternator, should I connect a ground wire to the body of the alternator, and run it to the negative terminal of the battery, or the chassis?

What actual advantage will grounding the Valve cover give me? Will it help ground the VTEC solenoid? Should I even bother with this? I'm about to add a ground wire to the cylinder head right next ot the upper radiator hose in the above pic, so will that make grounding the valve cover unnecessary? If I were to ground the valve cover which of the bolts would I attach the cable to?:


Sorry for all the questions, I just want to finish this project, but haven't received any good answers.

Thanks for your time,
LX4CYL


Modified by LX4CYL at 8:44 AM 6/5/2003

 

^bump for the morning crew

 

Maybe your Accord is different but I wouldn't know since I don't work on them one little bit... Never with an F23 either, hehe I'm all B series and on a Civic/Integra motor you have 2 grounding points for the entire motor... First your tranny side upper ground, then the "valvecover ground" (which doesn't actually ground the valvecover, you're really grounding the head) A lot of people put this ground on completely wrong since Honda tapped the valvecover with 6mm x 1.25 holes all over the place... You want to have you this ground on one of the studs that holds your valvecover down, directly under the nut or you could just do it your way grounding the head... It's not going to do anything for your VTEC, etc. but it is the ground for the most of the sensors in your head (the ground wll carry through your headgasket tho, it just helps split it up) It is most crucial for your spark plugs and igition system... However I've never heard of grounding the TB and alternator and I don't know why you would want to unless for some reason Accords come like that from the factory... Sorry I couldn't help ya much, oh well... Good Luck

 

So grounding the cylinder head next to the upper radiator hose won't be as good as doing the valve cover bolt?

 

No, it's actually probably better... Sorry if i worded that weird but I was just sayin why the original ground is mounted and what it does... Peace

 

Also search would help you...