 Motronic fuel injection, DME relay |
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| Elliot Cannon |
 Apr 15 2011, 06:12 PM
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#1
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914 Guru  Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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For those of you running a 3.2 with Motronic fuel injection, if you don't have a spare DME relay, (fuel pump relay) go get one and keep it in the glove box. The first time I tried to start my car after getting home from the Rt. 66 tour, It wouldn't start. It would turn over, cough once then not start. It cranked but wouldn't start. It had the same symtoms as fuel starvation. I jumped 12 volts to the fuel pump and it ran great. I checked volts to the fuel pump and it read 0. I remembered someone tell me that the DME relay will sometimes crap out for no reason and the car will STOP and/or not start. I replaced the DME relay and it fired right up. Do yourself a favor and get a spare. I'm just glad it didn't crap out in the middle of the Mojave desert.
Cheers, Elliot |
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| ConeDodger |
Apr 15 2011, 06:28 PM
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#2
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Apex killer! Group: Members Posts: 23,594 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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Word! They are cheap enough that you can easily afford the insurance of having that extra too... $35 or $30 IIRC...
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| Elliot Cannon |
Apr 15 2011, 08:14 PM
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#3
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None
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Retail is about $67. I paid $52. Everything just keeps going up. (IMG:style_emoticons/default/headbang.gif)
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| AZ914 |
Apr 15 2011, 08:53 PM
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#4
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914 Dumbass Group: Members Posts: 1,459 Joined: 6-January 03 From: Sunny Tucson Member No.: 98 Region Association: Southwest Region |
Elliot.. where do you have your DME and relay mounted? Just curious..
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| Elliot Cannon |
Apr 15 2011, 10:53 PM
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#5
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None
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On the right side of the firewall. I'm told mounting them inside the car where it might be cooler is a good idea.
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| pcar916 |
Apr 16 2011, 06:10 AM
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#6
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Is that a Lola? Group: Members Posts: 1,523 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None
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(IMG:style_emoticons/default/agree.gif) gotta have one.
I've carried a spare since 1999 and had never used it until recently except to eliminate it as the source of a fuel delivery problem. Turns out a bad solder connection on the pump was the culprit, and using it as a diagnostic tool took no time at all. I have mine mounted on the roll bar inside behind the drivers seat about 8 inches from the firewall-mounted DME unit. I can get to it when I open the door. Takes longer to get it out of the glove box. (IMG:style_emoticons/default/beerchug.gif) |
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| jim912928 |
Apr 16 2011, 07:25 AM
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#7
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Senior Member Group: Members Posts: 1,485 Joined: 8-January 04 From: Granger, IN Member No.: 1,536 Region Association: Upper MidWest |
Good idea...tons of them on eBay! I mounted mine and the other components under the passenger seat. I had to raise the seat about 3/4 of an inch for clearance.
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