Engine wont start - Help with global test PP2000

[JensJakob]

The resistance in the inertia switch is furthermore very low. So it dørs not seem to be the sinner.

[PeterN]

If it only clicked ones that would suggest it had been triggered.

Peter

[JensJakob]

It might be when I closed the hood. Sine the resistance is low.

[lozz]

+1.
If it clicked then its been triggers.

When u put the ignition on can u hear the lift pump in tank?
If not get a mat/peice of cardboard. and crawl under and give the tank a good thump with your hand ..

[lozz]

Is there actually enough fuel in there?.

The fuel gauges tell lies on these things..so don't trust the gauge.

[JensJakob]

Let us start with the inerty switch: it is only triggered by force/velocity, right? Not by sparks or other electrical problems. If there is no resistance across the switch, I assume it gives no problem at all.

The pump is not turning or humming, as it gets too little voltage. It will not help hitting the tank, I guess.

I know there is plenty of fuel down there (+50 liters).

[lozz]

Resistance?

The inertia switch only cuts the ' negative feed'.

It has been known on here...that giving the tank a thump sometimes bring a lift pump back to life...

[JensJakob]

Yes, resistance. Meassuring the resistance across the inerty switch to almost 0 ohm means the switch is not cutting of the connection.

Tomorrow I will try to feed the pump manually with 12 volt and I bet it will turn.

[JensJakob]

Update: Against my believing it was indeed the in tank fuel pump. After replacing the pump the engine startet first time without bleeding the fuel system. I got a engine failure light in the dashboard though (related to fuel system), but I cleared the fault in PP2000 and got no problems now.

[lozz]

Ah that's good news then.

Ibet u had fun getting the lift pump out..

[JensJakob]

It was quite simple until I realized the fuel level indicator showed no fuel. So I had to get new pump removed again and I had tightened the union nut too tight
Bottom line, I got the pump removed again, got the indicator arm released, got the pump refitted and the engine running

[lozz]

Your lucky then.

' maybe its been out before:.

Some people on here have resorted to cutting back some metal to get the pumps out.