I borrowed a diagnostic machine and had a play with my "new" (to me) C5 today. I was just curious to see what was in there, what was available to change, how my values looked, and what faults may be stored if any.
Some screenshots are below for anyone interested.
The only significant logged faults under the 'engine' screen were to do with the brake sensor (possibly because the other day I used the accelerator while also lightly pressing the brake - oops!). None of these faults caused a dash warning to show up or any other negative effects.
I'm not sure how to interpret "EGR opening control applied". Should this match the value for "EGR Required opening position"?
There was a fault for the rear body height sensor which I cleared. The readings show the height sensor as working okay.
Specifically I was looking for any hints related to the vehicle's performance. It's a bit lethargic unless you really keep your foot down. However the readings for air flow sensor and turbo etc seemed "normal" to my untrained eye and there were no recorded obvious faults.
Hope this is interesting to somebody.
I put my '09 C5 onto a diagnostic machine
Moderator: RichardW
Re: I put my '09 C5 onto a diagnostic machine
Oh one more questions - would these fault codes (e.g. the rear height sensor) also have shown up on a generic/ebay OBD fault reader?
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- Donor 2023
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Re: I put my '09 C5 onto a diagnostic machine
Doubtful. Although car manufacturers 'agreed' to standardise the diagnostics communications, they didn't all do so. Anyway, the Lexia can tell you so much more than a simple generic reader.
James
ex BX 1.9
ex Xantia 2.0HDi SX
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Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
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Yes, I am paranoid, but am I paranoid ENOUGH?
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- qprdude
- Posts: 1754
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- My Cars: Renault 5 TS, Renault 14ts, Citroen C5 Mk1, Renault Clio sport, Renault Laguna Privilege. Citroen C5 X7 Exclusive. Citroen DS5 D/sport . And around 25+ other brands from Morris Oxford to S Type jag and most things between.
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Re: I put my '09 C5 onto a diagnostic machine
You say it's a bit lethargic, but you don't say what engine size/power you have. My 2.2 (173) is anything but lethargic,but I'm not sure I fancy a 1.6 in one of these big cruisers.
Rick.
2013 Citroen DS 5 D/Sport
2007 Renault Clio Campus sport. 1.2l
Sometimes the change doesn't work.
2013 Citroen DS 5 D/Sport
2007 Renault Clio Campus sport. 1.2l
Sometimes the change doesn't work.
Re: I put my '09 C5 onto a diagnostic machine
Indeed and I do really want a Lexia but can't justify it when I have access to this diagnostic device. I hope this one (Autologic) does everything a Lexia does albeit at greater cost, since I spent an hour looking through every menu - there were hundreds covering everything from the Alarm's sensitivity to the stereo settings and depressurizing the hydractive. I can't think of anything that was missing - but then I've never used a Lexia .Hell Razor5543 wrote:Doubtful. Although car manufacturers 'agreed' to standardise the diagnostics communications, they didn't all do so. Anyway, the Lexia can tell you so much more than a simple generic reader.
Wishful thinking for a generic OBD reader to show those codes I guess.
My mistake. It is the 2.2 (173). It suffers from a poor throttle response. If you let off the accelerator at, say, 3000 rpm and reapply it, it takes a full two seconds for it to build up power again. Once the power has arrived it's very spritely, but it just takes so long for the power to arrive. I realise there is some turbo lag to deal with but I've driven a thousand turbodiesels and this seems to be among the worst for slow throttle response. It puts me off overtaking, because if I have to change gear during the maneouvre, I'll be floundering for two long seconds with no acceleration. Scary.qprdude wrote:You say it's a bit lethargic, but you don't say what engine size/power you have. My 2.2 (173) is anything but lethargic,but I'm not sure I fancy a 1.6 in one of these big cruisers.
I need to drive or passenger in another one with the same engine, but am not sure how I achieve that (unless there's another friendly owner around Gloucestershire parts who wants some "beer tokens"!)
- qprdude
- Posts: 1754
- Joined: 06 Apr 2012, 18:56
- Location: Woking, Surrey
- My Cars: Renault 5 TS, Renault 14ts, Citroen C5 Mk1, Renault Clio sport, Renault Laguna Privilege. Citroen C5 X7 Exclusive. Citroen DS5 D/sport . And around 25+ other brands from Morris Oxford to S Type jag and most things between.
- x 10
Re: I put my '09 C5 onto a diagnostic machine
The 2.2 seems a bit rare in the earlier X7 cars, as it was quickly replaced by the 2.0 I think. I have little, or no noticeably lag, and to be honest, one of the joys of the car is the superb overtaking power available instantly from 2000 revs upwards. Not to say that it's a slouch off the mark either. Not quite as rapid as my Saab, but a good balance for a big comfy cruiser. I think you might need a few tweaks somewhere.
Rick.
2013 Citroen DS 5 D/Sport
2007 Renault Clio Campus sport. 1.2l
Sometimes the change doesn't work.
2013 Citroen DS 5 D/Sport
2007 Renault Clio Campus sport. 1.2l
Sometimes the change doesn't work.
Re: I put my '09 C5 onto a diagnostic machine
Thanks for writing that. What's it like when you change up a gear, is there a pause? Even if the new gear puts you over 2000 revs still?qprdude wrote:The 2.2 seems a bit rare in the earlier X7 cars, as it was quickly replaced by the 2.0 I think. I have little, or no noticeably lag, and to be honest, one of the joys of the car is the superb overtaking power available instantly from 2000 revs upwards. Not to say that it's a slouch off the mark either. Not quite as rapid as my Saab, but a good balance for a big comfy cruiser. I think you might need a few tweaks somewhere.
- qprdude
- Posts: 1754
- Joined: 06 Apr 2012, 18:56
- Location: Woking, Surrey
- My Cars: Renault 5 TS, Renault 14ts, Citroen C5 Mk1, Renault Clio sport, Renault Laguna Privilege. Citroen C5 X7 Exclusive. Citroen DS5 D/sport . And around 25+ other brands from Morris Oxford to S Type jag and most things between.
- x 10
Re: I put my '09 C5 onto a diagnostic machine
No pause or lag when I change up a gear, very smooth and there seems a continuous supply of power. I know exactly the feeling of a delay in power when you change up, as I had a Rover 75 with the 2 litre BMW derived engine which suffered from that. If I remember correctly it was something to do with the MAF sensor, but I couldn't be positive about that.
Rick.
2013 Citroen DS 5 D/Sport
2007 Renault Clio Campus sport. 1.2l
Sometimes the change doesn't work.
2013 Citroen DS 5 D/Sport
2007 Renault Clio Campus sport. 1.2l
Sometimes the change doesn't work.
Re: I put my '09 C5 onto a diagnostic machine
I believe that was only for engine management & emissions related diagnostics so other systems like suspension, body control modules & autoboxes don't need to be standardised.Hell Razor5543 wrote:Doubtful. Although car manufacturers 'agreed' to standardise the diagnostics communications, they didn't all do so.