Thread: Surging DTI5

Not Petrol I hope.
Last week there was a Puma 4 with similar symptoms!
Regards Philip A

I don't know if you're being dramatic when you say 'lots of surging'.

But I'd be looking to fuel pump.

+1 for the pump, at least it's HP stage anyway

Is that a Fuel pump or Injector pump i should be looking at
and if injector would i be as cheap to buy new or get old one looked at , i know when on farm ,injector pumps cost an arm and a led, to be looked at

Td5 has only one in-tank 2 stage(LP + HP) fuel pump which feeds the electronic unit injectors(pumps)

Was chatting to some one down in Hobart and he told me to check fuel filter and mass air flow meter and turbo hoses ,before thinking about fuel pump, so have changed filter and that has helped , but still down on power ,so reading about MAF meter it says lack of power and high fuel use ,both of which i have ,so what fuse is used for MAF , and if that is OK, is it OK to clean MAF with electrical cleaner or must I use MAF cleaner

Unplug the MAF and drive it so...if you'll feel noticeable improvement a cleaning doesnt help IMO, you'll need a new Siemens/VDO unit, for cleaning the dedicated cleaner is the best but the electric one doesnt hurt, check fuse F2 engine bay to rule it out

Still working on disco to get full power, trying to stay away from fuel pump if i can
but looks like i might have to bite the bullet and replace it
one thing i have tried is to disconnect the MAF sensor and drive , nothing seems to happen, some people say ,disconnected should see a lot of smoke out of exhaust, nothing no more drop off on power than what is occurring with MAF plugged up,
if i take disco to mechanic will thy be able to tell with a diagnostic test if thy can connect into the system , also replaced the turbo hoses, now that's a story about price differences