• Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

EFI Fuel Pump

Very old thread but the last post is exactly what my problem is with my 450, So what was the fix???****************************************
 
As per the below - this is exactly what I am seeing so any ideas?? ! Looks like the ECU to me but that is $$$$

Thanks



bkjohn said:
If you guys dont mind I would like to share a problem that I am having with my power relay circut as well. I have a 2008 TE510. I found that I had no power at the fuel pump and coil. I check the fuses and all are good. I check for power on the swithed side of the power relay and I have power all the time. I check the coil side of the relay and I have power with key on. I check for ground on the ground side of the relay and I have about 7k ohms for about 1 second and then open. I can over lay my own ground that should be supplied by the ECM and fuel pump and coil work fine. I have checked the two grounds that go to the ECM and both are good at .2 ohms and no short to power on those grouds either. From the crapping wiring diagram that I have and wires that I have ohmed out it looks like with key one power is supplied from the power unit interface to the power relay. Then the ECM gives the ground to allow the power relay to switch. This is what turns the fuel pump on for 3 seconds or so when key is turned on then is powered up agin when engine is running. I called some dealers up to check on a ECM. Not one has ever heard of an ECM going out. I have double and triple checked myself and everything points to the ECM. It just wont ground that circut. Has anyone seen anything like this or has any other ideas? Thanks
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