HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Standalone Fuel Pump Relay. What to do with DME?

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Standalone Fuel Pump Relay. What to do with DME?

Post  chrenan on Mon Nov 20, 2017 10:14 am

Based on a bunch of reading on this forum, I sent the output from the fuel pump relay on my standalone LS harness to pin #4 on the 14 pin connector. This pin is supposed to be a direct shot for supplying 12V to the fuel pump. My standalone harness has seprate relays and fuses for the fuel pump and two radiator fans.  

So the questions is, what do I do with the DME relay in the stock fuse box?  Leave it in place? Pull it? How about the fuel pump fuse in the stock fuse box?  I've probably confused myself by looking at too many threads on here, some folks seem to be making connections between things under the stock fuse box lid, so now I've confused myself.  

I'm getting close to turning the key on my swap and as you can probably guess wiring is not my strong suit.  Smile

chrenan

Posts : 156
Join date : 2011-11-20

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Re: Standalone Fuel Pump Relay. What to do with DME?

Post  sharkey on Mon Nov 20, 2017 1:14 pm

when i did my swap i allowed my ecm to turn on its own fuel pump relay and i ran new wiring to the fuel pump. nothing for my fuel pump is hooked to the dme relay. that being said, i left my dme relay in place, i dont think it actually does anything now, but its still there.

sharkey

Posts : 526
Join date : 2014-11-21
Age : 33
Location : Abbotsford BC

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Re: Standalone Fuel Pump Relay. What to do with DME?

Post  Rich L. on Wed Nov 22, 2017 10:18 am

I pulled my DME relay out. And I used the slots leftover in the fuse box as connectors for the new wiring into the stock wiring back to the pump.

My new wiring includes the engine harness, PCM, fuses and a fuel pump relay. The output of that new relay sticks into the fuse box where the original DME relay was. Make sense?

Rich
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Rich L.

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Join date : 2011-05-30
Location : Seattle

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Re: Standalone Fuel Pump Relay. What to do with DME?

Post  chrenan on Wed Nov 22, 2017 10:42 am

Thanks Rich, yes that makes complete sense. If it turns out that my plan to use pin 4 on the 14 pin connector to get 12V to the fuel pump doesn't work, I'll do exactly what you did, send 12V through the DME socket.

chrenan

Posts : 156
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Re: Standalone Fuel Pump Relay. What to do with DME?

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