ev13wt

Additional Info on:
NUMBER 3 GND WIRE

I had this hooked up to the valve cover, which makes no sense. As stated, it GNDs the spark plugs. The head cover is sort of isolated from the rest - no real or good GND connection

This is out of an 3K mile old OEM 22-RE engine spark plug. Notice the pitting. It does look a bit large too, the gap.




Engine is smoother, makes a bit more power maybe. The idle is smoother as well. Will check high idle later when off work. (till now I placed it to the ECU bug where you have to set the timing at 3° or even 2°. https://22reperformance.com/faq-diagnostic-info/ )

Putting new plugs in on the weekend, will report back in 3K miles.

Allysa Chandler

Thank you very much it took me quite a while to get it but i finally got out of that gas station parking lot! Lol

ev13wt

Now check the other ground wires too

Tyler7777777

So I just bought a 93 Pickup w/22R-E and I went to clean the grounds as I've read that they are pretty important and my grounds/wiring seems pretty different... So far I've cleaned the postive & negative battery terminals, Grounds #3 & 4, and the extra ground I have and immediately, headlights are twice as bright. I had 4 error codes before cleaning disconnecting the terminals, now they are all gone (but I've also only driven a couple of miles since resetting the codes)


I intend to replace terminals in near future as recommended.


normally goes to A/C, but instead mine goes directly below it

should I move this one?




for whatever reason this is not an all black wire like other people have






In another post, I read you should replace two ground connectors above the fuse box in the interior (drivers side) . Mine only has one ground in the interior.


to the right of air filter / air flow meter

Not sure why mine would be wired so differently (I understand very little about car electrical) , I know the previous owner had a head unit installed, he also said there was an subwoofer with a built in amp at some point, but the vehicle no longer has it. Not sure if that could be the reason.

So I'm thinking the only ground I should move to the correct spot is #1? does it matter for the other ones? I also do intend to replace the terminals that go on the battery.

Co_94_PU

iTrader: (-1)

#1 serves as the ground for the starter, anywhere near it on the block side of the motor mount shouldn't be an issue.

RAD4Runner

Good article on why accessories should be grounded to body* ground, not directly to batt3ry nagative.
https://epicenergy.ca/chassis_grounding/
*On our trucks chassis ground really means body ground = to sheet metal of the body. Not ground to the frame. There is no guaranteed ground to the frame/chassis.