VCDS help for a poorly polo

[james.l]

Hi,

Is there anyone out there who might be able to help with my girlfriends polo. It hasn't been running right for some time. The symptons are

Poor Fuel Economy
Smells of petrol
Using oil

The engine management light has come on before with an error code for the lambda sensor. Would anyone be able to help me log it with VCDS and help fix the problem once and for all?

Cheers

 

[Slimy]

What did you do with the lambda sensor, have you replaced it?

 

[james.l]

What did you do with the lambda sensor, have you replaced it?

I haven't done anything as yet. I was hoping there might be someone local who can help me log it to have a look at the fueling and exhaust sensors.

 

[james.l]

I think I might have to bite the bullet and buy myself VCDS of gendan.

 

[james.l]

How many things could it be, MAF, o2 Sensor or coolant t sensor, these are the only things I can think of?

 

[Slimy]

I haven't done anything as yet. I was hoping there might be someone local who can help me log it to have a look at the fueling and exhaust sensors.

I know this might sound obvious, but you might actually solve the issue if you replace the sensor. If the lambda sensor isn't working, it won't know how much fuel to add. My car failed it's emissions due to a lambda sensor fail, it was basically dumping too much fuel in and therefore the amount of c**p coming out the back had increased.

I'd start with what you know, then look at other solutions if that doesn't help.

 

[james.l]

I know this might sound obvious, but you might actually solve the issue if you replace the sensor. If the lambda sensor isn't working, it won't know how much fuel to add. My car failed it's emissions due to a lambda sensor fail, it was basically dumping too much fuel in and therefore the amount of c**p coming out the back had increased.

I'd start with what you know, then look at other solutions if that doesn't help.

Could this of been happening for a while and buggered the CAT? I don't want to replace the post cat sensor only to find out that it's the cat that isn't working properly?

 

[Slimy]

If you have two sensors, ignore the post cat sensor. It has no effect on fuelling, it just monitors the efficiency of the cat. The pre cat sensor feeds back to the ECU and it uses that to alter the fuelling as required.

 

[james.l]

If you have two sensors, ignore the post cat sensor. It has no effect on fuelling, it just monitors the efficiency of the cat. The pre cat sensor feeds back to the ECU and it uses that to alter the fuelling as required.

Thank you for this, will get on ELSAWIN this evening and get the part number so I can order another one.

Many thanks

 

[james.l]

Installed the lambda probe, doesn't smell like petrol anymore, gained power, problem fixed hopefully, will report back later this week....

 

[processpaul]

I know its fixec now, but I have full Vag-com in Hove if you ever need some assistance, pm me

Cheers