Porsche Enthusiasts Club Forum

Rob

Have agree with that last bit, just look at hold crap heap a few posts back

Bit of hard work and some good materials

A clean, looked after, fully functioning 944 beats a gleaming sh*t box. At least it's 'honest'.

Thanks for those kind words about my sh*tbox

At least you have a sense of humour.

Indeed I do,

Too old to take things to serious

What did I do to my 944 today?
Well, I finished putting it all back together.*.

*Bar power steering reservoir and gearknob.

Cranked it over with the HT lead off in the hope that some oil would circulate around the engine.
Then attached the HT lead.
Then cranked it over.
It cranked but immediately I thought 'Can't hear the hum off the fuel pump'and needless to say, it didn't start and I had no fuel at the rail.
DME is fine, Fuse #34 is okay.

I guess that's tomorrow's job.

You have been fiddling about under the rear make sure the pump power connection is clean and working

Also did the tacho bounce when you turn the key

You can bridge out the DME relay and make the fuel pump run continuously

Yes. I have tacho bounce and I will disconnect the fuel pump connector and see if I get a current and I will bridge the fuel pump at the DME relay.

Been busy tinkering during lockdown.

1. Welded up 3 rust holes with a stick welder, quite a challenge and the wrong tool but ground back flush and clean.
Re-applied Wyeth stone chip in that area and cavity waxed the hell out of it.

2. Replaced some of the old and ugly parts of the loom that feed signals back to the Standalone. Including a new plug to the TPS.

3. Replaced the crank sensor for the 36 tooth crank pulley with a modern one rather than the recycled 30 year old Bosch unit.

4. Ran the wasted spark wiring and plugs. Not completed as I’m not happy with the VW coil pack I have.

5. Oil change

6. Replaced drivers side front flex brake hose as a bit scabby.

7. The thing I’m happiest about is I finally have a working interior light off the drivers door!!! Only taken me ten years to get round to it.

8. Re-fitted the rubbers that line the window runners and stop the glass rattling when the windows are down. Both doors needed doing.

Oil temp gauage and magnetic drainplug/adapter arrived from Lindsey Racing.
Amazing service from DHL, took 3 days. Last order via Parcelforce took a month and I had to travel 20 miles to pick it up from depot.
https://www.lindseyracing.com/LR/Porsch ... L-DP1.html

Hmm...

I have 12.3v at terminal 30 on the DME relay mount.
Bridged 30 and 87b. Nothing.
No current at fuel pump.
(No current to fuel pump connection).

Car is cranking.
Tacho is bouncing and I re-set Crank and reference sensor just to make sure.

Needs a three way bridge if I remember correctly

87 87b 30 as 30 is battery power

Did you check you have power at 30?

I did the 3 way bridge.

http://rennbay.com/dme-relay-info.html

I will run the pump off an external power supply to see if I can at least, get it started.

With the dme bridged you should see your 12.3v at the connector by the fuel pump, the two pin rubber connector,

If not then a trail needs to be followed,

I believe that the dme 87b connects directly to the fuel pump

https://www.pelicanparts.com/techarticl ... ooting.htm

I will do that.

Do I presume that because I have Tacho bounce, the ECU is okay?
Shall I also presume that the immobiliser if not activated, won't even allow you to crank and it is cranking, so therefore, the alarm/immobiliser system is not at fault?