2018 fiat ducato .

[jessestrum]

Please can anyone help with advice acceleration has a power lag only when under load, but revs ok when on a standstill ,also can anyone recommend a good old diagnostic meter for home mechanic

 

[huck999]

Unfortunately, it could be any of several problems. See this web-page : Power loss

For diagnostics, if you have a windows laptop, you can run MultiEcuScan for Ducatos.
You will need special cables to access the ecu's properly - Cables and software


Good luck

 

[jessestrum]

Huck999 thanks for your advice checking it out cheers john

 

[U.Toadifact]

Is is not just normal turbo lag?

 

[Podney]

Thrash it . ie Italian tune up. If that doesn’t work,revert to Plan A.

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[jessestrum]

Sorry ponder what’s plan A

 

[jessestrum]

Sorry podney

 

[Podney]

Sorry ponder what’s plan A

Plan A is to do it by the book,which,in my case,would be to take it to my local garage (not main dealer).

The reason I said thrash it is because a good long run at a good speed in third or fourth will often do the engine a power of good . By that I mean keeping the revs up above 3000 at least for at least 20 minutes. Diesel engines like to be worked and often do not take kindly to pottering about at low revs.

 

[jessestrum]

Thanks for that,I tend to be a bit timid with the accelerator I give that a shot, 90 % of the time it revs ok,but I have noticed loss of power 2 times last time was on motor way so a bit worried thanks anyway

 

[Wack]

Is the DPF regenerating properly

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[jessestrum]

Hi wack when I get home I’m taking it to the garage and possibly getting a obd diagnostic tool I’m really keen to be able to fix things myself thanks mate

 

[Wack]

When did it last have a fuel filter ?

 

[the1andonly]

You need a obd2 reader that speaks Fiat there are 2 used in the diy world
Windows laptop and multiecuscan (as previously mentioned) or Alfaobd for Windows.
Android phone, tablet and alfaobd . Specific obd2 dongles are also needed as as not all talk Fiat. Gendan is a distributor for both mes and USB dongle . For Bluetooth I use a vgate from ebay seller in Porthcawl s Wales they work, cheap £10 ones do not. To use other ecus you will need a yellow adapter.
I use a win10 obdsx USB dongle and multiecuscan
Alfaobd Samsung j6 phone a8 or tabA tablet and vgate. More detail in previous threads

 

[jessestrum]

Hi wack going to check when filter was done

 

[jessestrum]

Hi one and all .thanks for great info ,I have a windows lap top so I will be buying what you suggest and start getting my head round it ,gone are the days when I could pull an engine apart with ease .thanks mate and thanks to everyone for advice

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[Wack]

There's a tool for getting it back together so it doesn't leak , even if the garage is doing it I'd buy one for them to use having had one leak that looked tight ,it stinks for days

 

[eurajohn]

Not on a 2018 van they changed the filter with euro5 engined vans around 2012-13 now an aluminium canister.

 

[Pukka]

Go look at the vacuum hoses for the turbo pressure sensor. Open the bonnet and it straight in front of you. We had a mouse chew one of the blanking plugs. Engine would rev at stand still but under load it had no oomph

 

[the1andonly]

Back to square one , the new ones have black plastic caps/ bodies?

 

[Pukka]

Found the photo. Bottom pipe is disconnected

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[jessestrum]

Thanks pukka I’ll check that

 

[andymun]

Hi, just a thought; did you touch the brake pedal at the same time as the accelerator. This can cause the engine to power off for several seconds.
Andy

 

[jessestrum]

Thanks Andy I don’t think I did but I was overtaking at the time,and that’s my worry

 

[andymun]

I've done it when overtaking as I have touched the brake pedal changing gear. First time the power just disappeared and I wondered what had happened.

It's a possibility to be aware of. Fiat Ducatos cut the power for a few seconds and you have to take your feet off the pedals. Other manufacturers just cut the power while you are touching the brake pedal so you would probably never notice.

If it's not this then I hope you find the cause.
Andy