OK so the other day I did my valve lashings with my buddy watching and as I Looked at the ground wire from frame to valve cover I noticed the wire was being grounded on the stud with the plastic bushing that holds the valve cover on and not the actual spot its supposed to be grounded at thats 2 inches from it that would give it metal on metal contact.. SO when I finished the valve lashings I moved the ground wire to where it should be grounded and started the car, it was idling at like 1500 on my tach. Then after a min or so it went down and showed 0rpms like normal if the car is sitting haha but the temp gauge was past H and I decided to push the window up buttons and the temp dropped to half way each time I press it. Then I held the buttons downa d it actually shut the car off... switched the ground wire back to sitting on the plastic bushing on the spot where it origionally was and was fine, So my question is, is the ground wire bad or what? I have some kinda issue with electrical and am wondering if the ground to the valve cover could be causing it all and if its even necessary to have? SORRY FOR THE LONG READ

 

It should be grounded like this. Not sure why people think you need to ground the valve cover. The purpose is to ground the head.

 

Yea I get that but that doesnt really answer what or help me haha nice bay tho

 

Your description is kind of confusion, so I hope this will help you.

The idea is to ground the head, as donut says. This is best achieved by attaching the wire to one of the studs that holds the valve cover down, above the rubber grommet. This is because there really isn't a good place on the head exposed for a bolt hole.

If the wire is attached straight to the valve cover, there will be either intermittent or no electrical connection, as the head and valve cover are separated electrically by the valve cover gasket and the rubber grommets for the studs.

If the wire is connected to the valve cover or below the rubber grommets, you would have to jumper the valve cover to the head or body.

In the end, the hole in the far corner of the valve cover is not a proper grounding for the Integra. It was likely there for another model of car that used the same cover - probably for a bracket.

 

The V/C ground is for noise suppression it is not needed for engine operation.

Ops problem is most likely a grounding issue, but not the VC ground.

Anytime one circuit, [power windows] has an effect on another circuit, cluster, tach/temp. gauge] it is almost always because of a grounding issue.

To eliminate grounding as the possible problem, redo your main ground, DO NOT just eyeball them, disconnect/clean/reconnect the batt. post and cable clamp, batt. to chassis and chassis to engine grounds, may as well redo the thermostat housing ground(s) also.

See if that solves your problem. 94

 

Good information. It's odd the V/C ground is all he claims to have changed. Perhaps he did something else, inadvertently.

 

My guess is a bad chassis to engine ground, that is why anytime you have an electrical issue, the first thing you do is check/redo your main grounds. 94

 

Sounds like another ground wire issue.

I always use the far right spot for my valve cover ground on my Type R motor but in fact my gsr is setup this way grounded on the valve cover spot slightly off to the middle near the bottom of the valve cover, not the under the gromit bolt this is from the factory.

MY ITR motor,


gsr motor,

 

I completely zoned out on that one. It took wunfstgsr's pic to jog my memory. That cable is for the valve cover, either connection point should work.

That being said, if the ground problem goes away when you connect that cable to the head - through the valve cover studs - then the head is not getting a proper ground, and you should look at the engine block/head grounds.

 

When I got my JDM B16a the spot to the far right had a bracket for the throttle cable on a right hand drive vehicle, I used the same spot as your gsr on my b16 it cam with a bolt there and ground hanging off when I got my motor

on my LS the spot to the far right, like the spot you are using on your ITR, is not tapped ie. there is no hole