redbird555

iTrader: (14)

So in my quest to wire my meziere pump neatly I came up with this option and I'm wondering what you all think. My idea is to use the air pump relay to control the EWP. I'm planning to use the pcm constant hot at pin 30 on the relay then tap the fuel pump wire just as usually done to pin 85 for the trigger and then finally ground pin 86. This will take the pcm almost completely out of the equation besides providing the constant hot source. Anyone see any issues with this? I would think the air pump draws more than the meziere would but I'm not sure.

Heres the diagram and what i want to do.

redbird555

iTrader: (14)

well i did some research and found that the air pump relay just like the fuel pump adn fan relays are 20 amps. does anyone see an issue with that and the meziere? I know its normally 30 amps when you buy an ewp kit

Gray86hatch

iTrader: (83)

I would use that to trigger the ewp relay.

Tim

redbird555

iTrader: (14)

I was thinking that but in that case I would just use the fuel pump wire and not even use the air pump relay. I found that the air relay is in fact a 30 amp not a 20 so it should be just fine. The same relay is used for the starter a/c and fuel pump all of which I would think draw more power than the meziere.