Probably the bloody fuel pump relay but...

[Stretch]

G'day Folks,

Effing effing effing effffffffinnnnnnnnnggggggggg CIS - Sodding car!


I have a problem with the fuel pump not running on my 190E.

Put a jumper lead across the contacts with the fuel pump relay removed and the pump runs - so pump and wiring is fine.

(Phew - I've just replaced the fuel accumulator and do not want to drain the tank again - and yes I could clamp fuel lines but that buggers up old pipes which are seriously expensive to replace {like the best part of 500 euros})

Anyway:-

Put relay back in and turn the ignition key two clicks so the ignition is on and the pump does not run for the usual one second or so to prime the fuel pump.

I can hear clicking in the relay when the ignition is turned on though - so I thought may be low battery - but it ain't that 'cos the starter motor will crank the engine over.

So I now think the relay has probably decided to be a pain in the arse and die.

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The only thing that is nagging in the back of my head is "TD signal". I'm 95% sure the TD signal is only used once the flywheel is turning - but it is one of the inputs that goes to the fuel pump relay...

...and I'm only thinking TD signal because I have just had the engine out again...