engine management system faulty

[woody86]

i got my ds3 a couple weeks ago, went shopping yesterday and when I returned to my car and started it the service light lite up and a msg saying engine management system faulty, so I got it checked by and friend and a garage but neither could find any fault codes, anyone one else had the same problem?

[Dangerousfish]

What engine model?

[joeking27]

Hi Woody

What model and engine do you have?

[woody86]

1.6 THP 150 DSport

[Dangerousfish]

1.6 THP 150 DSport

It's a shame the garage have cleared your errors as now you won't be able to see what they were.

For future reference, there's quite a few documented issues that the 150 has been known to experience.

Have a read here:

http://www.ds3club.co.uk/showthread....ight=THP+fault
http://www.ds3club.co.uk/showthread....-Engine-Issues
http://www.ds3club.co.uk/showthread....-things-engine.
http://www.ds3club.co.uk/showthread....faulty-message

[woody86]

they couldn't find any errors to clear

[Dangerousfish]

There really isn't much we can do to help you in that case unfortunately.

When an EML appears, a fault code should be logged to the ECU. This error code would typically tell you what the ECU believes to be faulty.

Without that information we'd simply be speculating.

[woody86]

I know citroen dealer said £85 to run a diagnostic, everything seems to run as it was only thing that has stopped working is the A/C so was thinking that might be the problem?

[gaz_dsport]

Try unplugging the sensors to the a/c.. if a new warning light comes up it may eliminate the a/c for fault as the way I think of it is if you unplug it and nothing changes the it was not working when unplugged. But if a new code comes up it must have been working so can't be the fault.. I could be wrong though

[woody86]

Any idea where I will find the sensor?

[Jamie@SPTuning]

You need somebody with Lexia

[woody86]

Been told by the garage need a new ecu

[SLC]

So it has no errors but the garage wants to change the ECU?

I think you should take your car somewhere else.

[Toxic]

its more likely to be a wiring issue somewhere.

[woody86]

Still has warning lights. Came out of the garage with more that it went in with, taken it back to the place I brought it and said I want a refund they refused and said they will fix the problem