C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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MattBLancs
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

Unread post by MattBLancs »

darbuck wrote: 23 Jul 2023, 21:50 You need a known good 2.2 MAF reading to compare to it,Matt is your C5 a 2.2, if so can you check your MAF rate at a few different RPM rates for comparison purposes to rule out the MAF. I know they are different engines but the MAF rate should be very close.
Yes my C5 is a 2.2 HDi (super wizzy twin turbo "175" version)

I'll try and get the laptop plugged in and some of the live data values logged. Need to have a session with the 206 too (will put that in my blog/waffle/diary page rather than off topic here!) Not sure if will be tomorrow evening or else tail end of the week, but will do it soon as get chance.
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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Some of us have to make do with 128 horses. Or, at the moment, it feels closer to 90 or so. :-)
Paul

I would have more Citroens if I had the space...
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Rp0thejester
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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I have been using this recently, after 1 half tank, not much improvement, put a second half tank in and added this again. It's made a huge difference IMO,
IMG_20230810_185347.jpg
it's designed for start/stop engines so will get the engine to temperature alot quicker. Well worth a tenner in my opinion. The C8 will never win a drag race, but at least mine is starting to accelerate uphill, rather than dropping speed quicker than a guy at a rave. Even the dreaded Welwyn hill on the A1, which Mick will know, is now done at 50mph rather than a dangerous 30mph!!
Ryan

'99 Xsara 1.6 X (Red) with Sunkissed bonnet. T59 SBX
'54 Astra Estate 1.7DTI (Artic White)
'06 C8 2.2Hdi Exclusive (Aster Grey)

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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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Rp0thejester wrote: 10 Aug 2023, 19:01 I have been using this recently...
I see you're bottle of snake oil and raise you mine! ;-)
61YRShQXecL._AC_SX679_.jpg
Added it two weeks ago, but I'm driving very little right now - about 100 miles or so done, so early days. So far all I've noticed is slightly worse performance and the engine management light (finally) coming on - though it's gone again now.
Paul

I would have more Citroens if I had the space...
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Rp0thejester
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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Oh, I'm gunna try both together, has that worked for the uphill challenge?
Ryan

'99 Xsara 1.6 X (Red) with Sunkissed bonnet. T59 SBX
'54 Astra Estate 1.7DTI (Artic White)
'06 C8 2.2Hdi Exclusive (Aster Grey)

Champion of Where's CitroJim :-({|=
Yes I ask the stupid questions, because normally it is that simple.
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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I'm definitely going one at a time... So far it's at best no difference, but I haven't really used enough if it yet.
Paul

I would have more Citroens if I had the space...
Hell Razor5543
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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STP has been around for a VERY long time. When he used to race my Great Uncle Jim had their logo on his short nose D type Jaguar. Here is an article about said D Type, with Jim leaning on it.

https://www.oldclassiccar.co.uk/jaguar-d-type.htm
James
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
ex C5 2.0HDi VTR
ex C5 2.0HDi VTR
ex C5 2.2HDi VTX+

Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
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Rp0thejester
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

Unread post by Rp0thejester »

It's designed for stop start engines, so definitely worth ago imo, the EML turnt off for 15mins but then came back on.
Ryan

'99 Xsara 1.6 X (Red) with Sunkissed bonnet. T59 SBX
'54 Astra Estate 1.7DTI (Artic White)
'06 C8 2.2Hdi Exclusive (Aster Grey)

Champion of Where's CitroJim :-({|=
Yes I ask the stupid questions, because normally it is that simple.
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Huskyxantia
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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Worked on my car after 2 bottles more power & mpg no lights on dash either
Husky. :? Thinking outside of the box is better than sitting in a dark one.
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MattBLancs
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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MattBLancs wrote: 23 Jul 2023, 22:37 I'll try and get the laptop plugged in and some of the live data values logged. Need to have a session with the 206 too (will put that in my blog/waffle/diary page rather than off topic here!) Not sure if will be tomorrow evening or else tail end of the week, but will do it soon as get chance.
Sorry, had forgotten about this, will try and get these soon :)
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Rp0thejester
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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Just went to Go Compare, apparently my girl which I love to hate is worth money!
Screenshot_20230814-200613.png
Ryan

'99 Xsara 1.6 X (Red) with Sunkissed bonnet. T59 SBX
'54 Astra Estate 1.7DTI (Artic White)
'06 C8 2.2Hdi Exclusive (Aster Grey)

Champion of Where's CitroJim :-({|=
Yes I ask the stupid questions, because normally it is that simple.
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Rp0thejester
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

Unread post by Rp0thejester »

I'd probably get more for scrapping it due to her size and weight but feck it, I'm not a rational person, that's why I own a C8!! The STP stop/start is really starting to take effect. Within 10 minutes she's up to temperature even when doing the stop/start town driving and on the high speed roads she's holding her speed alot better
Ryan

'99 Xsara 1.6 X (Red) with Sunkissed bonnet. T59 SBX
'54 Astra Estate 1.7DTI (Artic White)
'06 C8 2.2Hdi Exclusive (Aster Grey)

Champion of Where's CitroJim :-({|=
Yes I ask the stupid questions, because normally it is that simple.
tearing hair out
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

Unread post by tearing hair out »

Generally, I prefer to spend my money on maintenance rather than losing it on depreciation, so I've never spent more than £2000 on a car - and I run them as long as I can. Even though the C8 has been expensive recently, I still think I'm well ahead of where I would have been buying equivalent 3-year-old (say) vehicles over the last ~30 years.

I might try a bottle of the DPF cleaner next tank - though I know my DPF is clean.
Paul

I would have more Citroens if I had the space...
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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Half way through the tank with a bottle of STP and, on a 50 mile round trip today, it feels improved. Still far from perfect, but able to accelerate in 4th at 30 and 5th at 50, which it hasn't for a while.
Paul

I would have more Citroens if I had the space...
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Rp0thejester
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Re: C8 2.2HDi really hates hills - turbo or DPF issue perhaps?

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Wow, I would never try accelerating from 30mph in fourth gear, that would be around 2k revs to start with! That's not even in the turbo band
Ryan

'99 Xsara 1.6 X (Red) with Sunkissed bonnet. T59 SBX
'54 Astra Estate 1.7DTI (Artic White)
'06 C8 2.2Hdi Exclusive (Aster Grey)

Champion of Where's CitroJim :-({|=
Yes I ask the stupid questions, because normally it is that simple.