Engine Management Light On - A4 1.8T Cabriolet (2005 MY)

[pvcprinting]

Hi folks,

My engine management light recently came on. There is no difference in engine performance so i am led to believe this could be simply a Lambda Sensor failure

I intend to replace the front sensor, but wondered where was the best place to buy a sensor
I have had a look at the one fitted has 5 wires

Would members suggest doing anything else either prior, during or after sensor replacement

I do not have access to VAGCOM or anything to interregate the codes


Thanks in advance


Pete

[kite]

Without a scan you have no idea what the fault is.
How do you know changing the lambda will fix it.


bloody smart phones....

[pvcprinting]

I'm only guessing given that the car is still running fine and not gone into limp home mode
I have had the MAF connector off and it ran like a bag of nails so have discounted the MAF

[kite]

Don't guess, scan.
By disconnecting the MAF you now definitely have a fault code...

bloody smart phones....

[pvcprinting]

Don't guess, scan.
By disconnecting the MAF you now definitely have a fault code...

bloody smart phones....

Perhaps you havent read the original post, I have NO WAY of reading the codes

[Guest 2]

Perhaps you havent read the original post, I have NO WAY of reading the codes

Now you do - VWAF User Location Map - VCDS - Google Maps

Make 4 more useful posts and you can PM if there is anybody near.

[mjhamilton]

Or buy a £5 cable and use vcds-lite to read the basics

[kite]

Just change the sensor, if thst doesn't work change something else...

bloody smart phones....

[pvcprinting]

Or buy a £5 cable and use vcds-lite to read the basics

That could be an option, what cable would be required?

[pvcprinting]

Or buy a £5 cable and use vcds-lite to read the basics

Also meant to ask if vcds-lite is something that runs from a laptop and is it able to reset any codes?