OEM Relay vs URO

[Antomero]

I recently replaced my URO dme relay as a preventative maintenance with an OEM relay, as well as doing a whole bunch of other stuff. Fuel lines, injectors, spark plugs etc etc.
(Big winter project) Also had Steve Wong retune the DME since I upgraded the exhaust system Scart per muffler and exhaust. Awesome set up for anyone thinking about it

This is where the problem started… my cold start up would stutter for 3-5 seconds and then hit its correct idle mark. Everything else was perfect. The Porsche runs great after warm up. It was driving me crazy.. couldn’t figure this **** out. Until this afternoon I decided to put back the URO relay and BAM!!! perfect cold start.

Why would an OEM DME relay not work correctly? Anyway I went ahead and ordered a DME relay from Focus 9.
Hope this helps anyone else out there with the same symptoms!!

Cheers ��

[darrin]

Originally Posted by Antomero

I recently replaced my URO dme relay as a preventative maintenance with an OEM relay, as well as doing a whole bunch of stuff. Fuel lines, injectors, spark plugs etc etc.
(Big winter project.) Also had Steve Wong retune the DME since I upgraded the exhaust system Scart per muffler and exhaust. Awesome set up for anyone thinking about it

This is where the same problem started… my cold start up would stutter for 3-5 seconds and hit its correct idle mark. Everything else was perfect. The Porsche runs great after warm up. It was driving me crazy.. couldn’t figure this **** out. Until this afternoon I decided to put back the URO relay and BAM!!! perfect cold start.

Why would an OEM DME relay not work correctly? Anyway I went ahead and ordered a DME relay from Focus 9.
Hope this helps anyone else out there with the same symptoms!!

Cheers 🍻

sounds like the OEM DME was defective, had a cold soldier joint that self-resolved once current passed through it.

[Joe Bob]

Old school electronics. They all will fail eventually. I have a solid state aftermarket one and STILL keep a backup. Kind of like two layers of tin foil on my head under the ball cap.

[GH85Carrera]

Once upon a time the factory OEM parts were the best. Now Porsche sells some of the same garbage and poorly finished parts as aftermarket.

For sure the solid state relay from Focus 9 is a good option. Mine has been flawless.

[JackkTheMackk]

https://www.ftech9.com/new-products/911-ssr-pp

Permanent solution ^

[Antomero]

Originally Posted by JackkTheMackk

https://www.ftech9.com/new-products/911-ssr-pp

Permanent solution ^

Ordered!

[7783911]

too bad they dont make for older 911's

[mb911]

They make the DME relays and if you need a proven oem style fuel pump relay for a 83 and earlier car 914rubber.com makes a really nice one that is better than the uro one.

[7783911]

Thank you, I looked at the website and it didn't indicate if it was the original design (likely sourced from China) versus a solid state relay?

[mb911]

Are you referring to the 914rubber one? It's my understanding they are US made. Mark the owner has a video of all the test cycles before failure as well.

[7783911]

I luckily have a spare red (original OEM) but its old and a solid state version would be a much better choice, i was unable to find any video on the 914rubber offering

[GH85Carrera]

Originally Posted by 7783911

too bad they dont make for older 911's

From 1983 back to 1964 there is no need of a DME relay. It is like wanting a power steering pump for an early 911. 1984 was the first year of the DME, and of course the need for a DME relay.

[7783911]

i m looking for a fuel pump relay (red) that is solid state

[sugarwood]

Glad to know the URO DME relay works.
I'm gonna order one as a spare

[Marknado4000]

Did you have the car running on stock chip and the SW? what did it do the exhaust sound with the SW chip? I have the same exhaust setup.

[DaytonaCoupe66]

OEM stuff isn't necessarily superior as in don't assume it's fabbed by P. My two new red fuel pump relays ordered via the P mothership and picked up at the dealer are stamped "Made in China", and are 3-4 times the cost of the URO copies. Just buy a few UROs.