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02 emission readiness not passing!

TBlown

Passed Driver's Ed
Hi all! Just recently purchased a 2009 gti with a tsi ccta engine code and I’m having problems getting it to pass my o2 emission readiness monitor. In vag com all data blocks are passing for the o2 monitors except data block 037 I start the test and it just goes on forever saying test on. The car is a stage 2 revo with a catless dp and o2 spacer. Anyone have any ideas? They would be much appreciated!

Block 037 in engine basic settings in vagcom is lambda control (delta lambda bank 1) and during test it’s showing: engine load: 14.3%-15% sensor voltage is 0.63v and delta lambda bank 1 sensor 2 is sitting at 0.00
 

smanierre

Drag Race Newbie
My guess is the tune disables the sensor. Will have to probably go back to stock to get it to pass.

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TBlown

Passed Driver's Ed
My guess is the tune disables the sensor. Will have to probably go back to stock to get it to pass.

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I thought that at first to but the sensor is reading fine in vagcom ive tried calling revo to see if it’s a test pipe tune but they won’t tell me.
 

Jiffyjetta

Ready to race!
It will still work and show data, but the readiness monitor will show "unsupported" or "unready" for the 02 monitor and/cat monitor.
I'm pretty sure it's a legal thing, no big name tuners will give you a catless tune with a passing readiness monitor.
 
Last edited:

TBlown

Passed Driver's Ed
It will still work and show data, but the readiness monitor will show "unsupported" or "unready" for the 02 monitor and/cat monitor.
I'm pretty sure it's a legal thing, no big name tuners will give you a catless tune with a passing readiness monitor.
cat monitor is showing ready thats why i think something else is wrong but i am going to try and switch back to stock tune and find out.
 

Jiffyjetta

Ready to race!
cat monitor is showing ready thats why i think something else is wrong but i am going to try and switch back to stock tune and find out.
I believe Revo disables O2 readiness. You can use the SPS to go back to stock and it should go ready.
 

TBlown

Passed Driver's Ed
I believe Revo disables O2 readiness. You can use the SPS to go back to stock and it should go ready.
do you know if i can go back to stage 2 without bringing it back to the dealer after? I just purchased the car and the nearest dealer is 4 hours away.
 

TBlown

Passed Driver's Ed
Yes, you'll need to buy the Revo SPS though. It will allow you to switch between tunes without a dealer.
Ok that was my only concern I was just wondering how the sps would know if I had stage 2 already but I guess it just reads it when I plug it in.
 
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