They do fail, Them ECU’s |
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They do fail, Them ECU’s |
Porschef |
May 22 2020, 10:55 AM
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#1
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How you doin' Group: Members Posts: 2,165 Joined: 7-September 10 From: LawnGuyland Member No.: 12,152 Region Association: North East States |
A couple weeks back I hit some real rough road on my way home from my mechanic neighbor’s shop. The car started running out of power, I made it another couple hundred feet before it died. With help from said neighbor we were able to push it down the road to a safe spot, where Hagerty towing picked it up.
I have a fuel pressure gauge in the engine bay, whenever I would engage the pump it would build up pressure and immediately fall to zero. I thought I had a bad injector or maybe the cold start valve failed, so I pulled them all individually and checked them; they were all leaking. A Noid light showed them all to be open. WTH? My neighbor suspected the ECU, but based on what I’ve read they rarely fail. Anyway everything else seemed ok so I put out a WTB and Jim Hoyland responded with a unit and an offer to check it out and then buy it if it worked . So last evening I pulled the harness off the one in the car and plugged it into the new one. Presto! Pressure held right where it should. A quick experiment putting the harness back into the old one got the same previous result. So I’m pretty confident that the problem has been resolved. As much as I wanted to start it, I did not based on the oil reeking of gas. So I’ll do a change, and see what happens. Big thanks to Jim for helping out, it’s a great community. (IMG:style_emoticons/default/beerchug.gif) |
914Sixer |
May 22 2020, 11:06 AM
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#2
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914 Guru Group: Members Posts: 8,883 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
Looks like you fall into the 10 % group for ECU failure. 90 % of the time it is a brittle wire harness and bad connections. You might have some loose parts in the ecu itself. Vibration got to some on the solder joints.
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