How to ground you N/A FC ver. 1

[need RX7]

Kind of a stupid question (I'm an electrical noob lol), but for the pressure sensor reground, do you basically just cut the wire, and solder the ends back together with a 3rd wire added to the joint, and ground that 3rd wire?

Like this?

[My5ABaby]

Originally Posted by need RX7

Kind of a stupid question (I'm an electrical noob lol), but for the pressure sensor reground, do you basically just cut the wire, and solder the ends back together with a 3rd wire added to the joint, and ground that 3rd wire?

Like this?

Yeah. I would also suggest cleaning the factory ground point as well.

[takahaski.r]

i did the hks circle earth system, gold plate to negative battery with 6 wires coming off to engine, one to each of the housings and one to each of the irons
and one to the main harness ground. i have no hesitation at any point, and no more bogging from starts. this is in my 90 GTUs

[TitaniumTT]

Originally Posted by Fidelity101

I just wire wheeled all the factory grounds and ran a semi thick gauge wire between all of them that loops from engine group to ECU ground. no hesitation here!

I also did re ground the map sensor too.

Nicely done.

Originally Posted by takahaski.r

i did the hks circle earth system, gold plate to negative battery with 6 wires coming off to engine, one to each of the housings and one to each of the irons
and one to the main harness ground. i have no hesitation at any point, and no more bogging from starts. this is in my 90 GTUs

I think that HKS thing is a waste of hard earned money. You could've done the entire thing yourself for much cheaper. Also, grounding the int and front iron are kind of a waste. The rear holds the coolant sensor for the gauge, so that is kinda nice to re-ground.

The housings are key for good spark so I would definately ground those, as well the ECU points, housings, waterpump housing, TPS, pressure sensor, and maybe the MAF. Everything should be common and leading to a GOOD chassis ground or to the battery. When I did mine I started with an 8 gauge grounded by the ECU that spiderwebbed out with CRIMPS (NOT solder) to hit all the key points.