overriding the ic pump.

I read that the right relay above the distributor controls the ic pump. And the yellow wire is that one that controls the pump. Should i cut the yellow wire and attach it to the back of the alternator, or should i cut it and run a length or wire through the fir wall and connect it to a switch? What bad stuff could happen if i do this?

Is this a bad idea? Does it really need a switch or can i just hook it to a switched power source, i have my boost gage light connected to a switched power source. It turns on with the ignition. How do i even know if it works? Im gunna wait n see what you guys say(especially warm pancakes) he seems to have learned from his mistakes lol. thanks.
 

dgoodhue

BuSTeD 4.3
Re: overriding the ic pump.

FYI most aftermarket chips will hotwire the IC pump. I just do it in the chip rather than cut the wiring harness.
 
Re: overriding the ic pump.

SY2932 said:
You can see a "how to" here.
There are two methods to hot wiring the pump. You can splice/tap the yellow wire,and run to a ground.
The other option is to dismantle the relay, and wind a wire around the relay tab to avoid any permanent cuts to the harness.

Im not sure what run a ground means here. Maby im having a brain fart. The yellow wire is a power wire, do i splice the ground wire in with the yellow wire?
 
Re: overriding the ic pump.

Tophatjimmy said:
the yellow should be the negative trigger that turns the relay on, thus supplying power to the IC pump. You can cut it and ground it, or splice/scotchlock/t-tap a wire onto it and then run the wire to an on/off switch. Either way the pump will then run all the time with the ign on.

http://i173.photobucket.com/albums/w63/tophatjimmy/untitled.jpg
wait a minute it is or it isnt?? i dont want to ground a power wire.
 

Tophatjimmy

Syclone FNG
Re: overriding the ic pump.

I thought I was clear, but i guess not. The yellow wire is the negative trigger for the IC pump relay, 100% sure.
 
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Raist103

Engine Killer, iPhone Killer, Lawnmower Killer
Re: overriding the ic pump.

just ground the yellow and it will keep the pump running while key is on
 

turbodig

Active member
Re: overriding the ic pump.

Tophatjimmy said:
I thought I was clear, but i guess not. The yellow wire is the negative trigger for the IC pump relay, 100% sure.


The yellow wire is meant to be grounded, not power.
The ECM pulls it low to activate the relay. Connecting it to power will likely smoke the driver in the ECM.

Scotchloc tapping and running the tail to ground (self-tapping screw in the firewall) is by far the easiest. The relay will activate with the ignition key, at that point. I generally hate scotchlocs, but it'll work fine.

Check your relay to see if it has bad (green/black) contacts, many do. While you're at it, check the fuse behind the alternator, see if it's blown.
 
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