When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
...after 10 years of ownership the 993 refused to start!
Today's a beautiful day in these parts and perfect for getting the car out after a winter's slumber. Car just kept cranking and not firing. I couldn't hear the fuel pump priming so I put my spare DME relay in and it fired right up.
I love this car... here it is next to other hard working machines.
The nice thing is that because the old DME failed, all the cranking built up some oil pressure after the long winter dormancy before the new DME fired it to life.
The nice thing is that because the old DME failed, all the cranking built up some oil pressure after the long winter dormancy before the new DME fired it to life.
Enjoy the driving season!
That is exactly how I do my oil changes after replacing both the filters. Pull the DME relay and crank the engine in short spurts not to overheat the starter. It takes a while but the oil pressure will rise a bit. Plug the relay back in and start her up with immediate oil pressure and no or minimal lifter noise. I just feel better about doing it this way.
I did take the old relay apart and all the solder joints all appeared to be okay.
I re-soldered everything anyway and tested on the bench with a 12v power supply and it appears to be working again. I kinda wish I tested it before as well, but oh well...happy to have a spare one again!
Hairline cracks can be hard to see without a scope. The other thing you can do is wiggle the hardware while holding the PCB. Any movement of the pins relative to the board is indicative of broken solder joints.
nicely done,
04-07-2024, 03:42 PM
It finally happened...
