96trans am

I am wiring up my Meziere Electric Waterpump and I am going to run off of my AIR pump relay. The problem is where do I get my signal from to tell the relay to stay closed and keep my waterpump running? If I run it how it is, it is going to turn the waterpump off as it does the AIR pump. I was wondering if I could use the signal going to the fuel pump and tap into that? Does anyone have any other ideas or maybe a wiring diagram showing me
1) where the AIR pump relay is
2) what wire runs from the computer to the fuel pump

Thanks for any replys. Shoebox, hopefully you can chime in on this one.. Thanks. -Matt

ZL1modified

http://lt1info.com/TECH/Temp/2ledmez.jpg

this is what i used.

3gc

I used the painless wiring electric water pump kit and used the the fuel pump signal to activate the relay. I just taped into the wire sticking out of the loom near the passenger side firewall. Wiring up this way will run the pump for a few seconds when you turn the key to On but that won't hurt anything. Let me know if you need some pictures.

96trans am

A picture would be great showing the wire coming out of the loom. Also a picture where the air pump relay is would be great to. Thanks for your help. -Matt

3gc

I don't know where the AIR pump relay is, but if i had to guess i'd say in the fuse box in the engine bay.

This is the kit i used, PRF-50106

Had pretty much everything I needed for the install. I crimped, soldered and shrink wrapped all the connections to be extra safe, with the exception of the turn on lead, that was simply soldered and wrapped with electrical tape.

Here is where I hooked up to the fuel pump turn on lead.
The wire shows 12V with engine on and when the pump is priming. It fits nicely back into the loom completely invisible.


The wires are hidden in looms where possible. The only wires showing are the actual wires going to the water pump but that's still rather hidden. The circuit breaker get's it's power from the red junction box. The relay grounds under the bracket for the hood bumpstop and the water pump grounds at the arrow.

ZBLKHELLRZR

Thanks I was wondering myself.

Buttercup

I've said this before but I'll say it again. If you've removed your AIR system, just use that circuit. Voila, a clean reliable circuit that's already there and rockin.

I'm using most of the wiring, relay, and fuse that was in the car for the AIR pump. Unfortunately I don't where in the PCM code I could tell the car to run the pump constantly so I'm using the fuel pump relay as the trigger signal. You have to reverse polarity across the relay and trace the wires but if you've got the reference material it's easy. Someone here even put my diagrams on the 'net somewhere I think

This is a very easy solution for us OBD1 guys and you can even use the AIR pump diagnostic code as a waterpump diagnostic code

Buttercup

Found it! Our friendly member "Stevil" made a page on it if anybody's interested.

http://stevil.easy48.com/AIR-CSI.htm

96trans am

Hey thanks a lot for your help 3gc, them pictures should make it a lot easier for me. I seen that website buttercup but wasn't sure how much different things would be for me since I am OBDII.

1quickTA

I ran my signal wire from the ignition fuse to the relay and it works well.

seawolf06

buttercup, I'm seeing a discrepency between the way your wiring diagram on stevil's website has the relay wired, and the way that ZL1modified did it. On ZL1's diagram, the blue wire from the pump is connected to the relay at #30, #85 is connected to ground and #86 is hot when the ignition is turned on. However, in stevil's diagram, the hot wire from the pump (blue or red) is connected to #87, #30 is connected to the AIR pump fuse 7 and is hot at all times, while #86 is grounded and #85 is connected to a brown wire that I can't see where it goes. Can you clear some of this up for me? Many many thanks.

EDIT: what are the stars on those diagrams for???