Hi, my car is a 1.6 8v 102hp bora BFQ motor with LPG , I have problem for lean condition , but I can not resolve !!

I record a video please watch it 

https://www.youtube.com/watch?v=h4Q7...ature=youtu.be


What I did ? :

1- Manifolt gasket changed ! 

2- Bank1 sensor 1 lambda sensor changed > > It's failed ( But I suspect new one ! I get a bosch , original one is NTK ) maybe at idle , It doesn't read regularly ? Is it possible ?


3- I did a smoke test there is no leak ?

4- MAF sensor ? please watch the video 

5-Does Injector leaking cause lean condition ? I didn't clean it ? maybe I must clean ?


I'm watinig for your suggestions , Thank you

Could be a failing coolant temp sensor causing the ECU to fuel incorrectly. Very common issue on VAG cars.

Could be a failing coolant temp sensor causing the ECU to fuel incorrectly. Very common issue on VAG cars.

I changed it with a original one , nothing changed :(

Was it a genuine VAG revised green CTS?

Was it a genuine VAG revised green CTS?

 

Yes , I bought from authorized service of skoda 

Watching your video VCDS is showing CTS reading of 103 C is high, I've never seen more than about 92 C on a healthy VAG engine. Don't know whether that is being caused by it running lean or a faulty CTS ?? but I'm sure the ECU is going to be leaning it out at that sort of temp. Is the temp gauge showing 103 C too?

Edited 24 August, 20169 yr by pauldazzle

Watching your video VCDS is showing CTS reading of 103 C is high, I've never seen more than about 92 C on a healthy VAG engine. Don't know whether that is being caused by it running lean or a faulty CTS ?? but I'm sure the ECU is going to be leaning it out at that sort of temp. Is the temp gauge showing 103 C too?

 

no temp gauge stable at 90 

Watching your video VCDS is showing CTS reading of 103 C is high, I've never seen more than about 92 C on a healthy VAG engine. Don't know whether that is being caused by it running lean or a faulty CTS ?? but I'm sure the ECU is going to be leaning it out at that sort of temp. Is the temp gauge showing 103 C too?

 

in video I didn't look the temperature  ? where did you see ?

@veracocha Did you managed to solve the problem ?
What was causing in the end for Lambda idle self adaptation to be at %20 ??