HDI wont start

[jaycc]

Hi Guys,

I've a HDI on a X plate. The other day when I went to start it wouldn't start. It was attempting to start but would not fire up. After about 15 mins it started.

Got home, then tried to start again - would not start.

I cannot hear the lift pump priming.

So far I've done the following

Replaced brown multiplug (brand new from Pug) behind ECU - problem persists
Steve @ HDI Tuning sent me out a tested working unlocked ECU - but again, problem persists
Cleaned up earth points below battery.

I've checked the voltage going to the lift pump with a multimeter - its reading 10.7v when the ignition is on. Should this be reading closer to 12v?

Thanks for any help

[jaycc]

Update. Put power direct to pin 2 and 3 on pump and pump still does not prime. Looks like pump issue to me.

edit- the reading on 10.7v i was getting above was an error by me.

For the first 3 secs ignition is turned on i get 12.95v then drops to ~3v.

[Poodle]

Sounds a lot like a dead lift pump, failing that there's a lot of info in the link in my sig.

[jaycc]

Thanks poodle. I just want to check, when wiring up battery direct to the fuel pump, is it pins 2 and 3 to get pump to prime? I've not found anything to confirm this. When running a multimeter in the plug itself I see 12v when ignition on so assumed it's these pins on pump to get it to run.

[jaycc]

No bother, its marked on the pump itself, under all the crud

[C2K]

Dead pump. I seem to recall only seeing 11v when engine off, but it was 2 years ago.

[Poodle]

You want 12v positive and an earth, don't know which pins off the top of my head, sorry.

[jaycc]

new pump fitted, started first time and running well. Bloody EML illuminated now though!

[Poodle]

That should go out after a few starts, or you can find someone local with a code reader and get it cleared.