aaargh orange engine managment light is on :(

[Don_Dice]

as above has just happened, and im pretty new to the saxo way of life. i have been searching on here and google to find out info but the question i need answering i cant find so...
Is there a way i can test the ecu at home to find out what the fault is? On my vauxhall calibra if i cross two pins on the ECU diagnostic plug and turn the ignition on, the dash lights 'blink' a code to tell me what the fault is. Is there a similair way to do this cause i dont want to fork out £58 at my diagnostic place if i dont have to...
The light just came on when i was doing normal driving.
Ane help is appreciated :)

[stevo67]

Not really mate unless your buy yourself a diagnostic reader or know a mate with 1.Not all garages charge to scan your car.

[Don_Dice]

bugger oh well :( cheers for the info anyway mate

[Don_Dice]

although ive just changed the middle and back box on the saxo, would this have any bearing on the lambda at all??

[f13sta]

is the car running ok? does it feel any different?

if the answer to this is no then just leave it its doing no harm probs just a lambda sensor gone down

[Don_Dice]

seems to be running ok mate, its idling fine and not stuttering at all but i thought a sympton of a dodgy lambda was irratic idling?

[f13sta]

nope if the light didn' come on the you'd never know.

irratci idling is due to idle contol valve. the lambda controls the fuel/ air mixture going into the engine. so if its reading wrong them normally they use a little more fuel.

[Aureol]

Funnily enough, I also got the dreaded engine management light last night, as I was driving back from Matlock Bath. The performance hadn't changed in the slightest and, having been plugged in to a diagnostics reader today, it was just a sensor which had thrown a wobbly and the light was reset.

[jailbreakvito]

I had the same thing other day... Engine misfired when turning it on... Took it to my local garage... Said it was a misfire reset the light and all for free... I love my mechanic

[Don_Dice]

ill get it on a diagnostic at some point then, considering the price of both lambda's id rather be sure i get the right one sorted.