Xantia - Faultcode reading

IanR · Post by **IanR** » 03 Jan 2005, 21:50

Can anyone suggest a link or info on the Motronic MP 5.1.1 injection system as fitted to Xantia (1996) 1.8 16v Dimension?
I have the Haynes fuel-injection book, but it's so vague as to be useless.
This model has a multi-pin diagnostic socket in the fuse-compartment under the steering-wheel. Pinout of this would be useful, as would the method of reading faultcodes.
The warning-light is staying on for 5-10sec after starting, which suggests there may be a minor faultcode. It would be useful to know what this is as the car has to go for MoT in a month or two.
The vehicle runs perfectly, so it's not a big issue but I'd rather find out what's causing it. (and I don't trust your average garage with this kind of thing, when it comes to electronics they usually tend to make things worse rather than better!)

IanR · Post by **IanR** » 04 Jan 2005, 14:41

No-one any ideas on this?

Post by **martyhopkirk** » 04 Jan 2005, 14:57

Warning light or STOP light?
Stop light its usuall for this to stop on untill the system reaches pressure.

IanR · Post by **IanR** » 04 Jan 2005, 16:44

ECU warning light. (engine with transistor "K" symbol)

NiSk · Post by **NiSk** » 04 Jan 2005, 21:13

Lamba sond getting up to temperature maybe?
//NiSk

Richard Gallagher · Post by **Richard Gallagher** » 04 Jan 2005, 21:33

The only way as far as I'm aware of getting the fault read on your car is with a professional fault code reader, ie not a 'Gunsons' LED type FCR.
You will be able to get it read by any competent garage who has the necessary equipment, indeed if you are anywhere near Iver, Bucks I can do it for you as I have the magic tool.
You can try disconnecting the battery for a while to 'clear' the fault but it could be useful to know what code is registered in case the problem worsens.

IanR · Post by **IanR** » 04 Jan 2005, 22:26

Scotland, actually.
I was thinking along the lines that maybe I should check the lambda sensor voltage to see if it looks like it's responding. It is fairly old, and might be a bit doubtful.
I've cleaned the connectors on most sensors. Methinks I'll disconnect the battery and see if it recurs.
Oh boy, another round of radio re-tuning, that's the worst of it!!