Engine Management alarm

[Tony E]

Hi can some please tell me if the engine management warning on the dash needs to be reset by someone with the diags software if the fault is intermittant ie; if the fault clears itself will the warning still show?

I had a couple of air sensors changed a couple of months back when this warning light came on, it was all ok after that and have since done about 2k, but the warning light has returned and I'm just wondering if it is due to the really cold weather we have here -9 overnight. cant believe they are faulty again.

any thoughts

Thanks

[kenney]

Most intermittant faults,AND if the fault does not reoccur will be self erassed,after 50 starting cycles

[kite]

How do you know it's the same fault that has returned ?

[Tony E]

I dont know its the same fault, but as last time there are no symptoms, performance and MPG are good like before, if the light wasnt lit then I would be none the wiser,

I am just assuming its a similar problem.

[kite]

A fault scan will tell you where the fault lies..

[Tony E]

can you do a scan without a diags terminal using the onboard computer?

[kite]

Don't think so, have a look in the vagcom section for a member in your area.

[Tony E]

ok thanks