Tip & How-To about Volkswagen Cars & Trucks

Vw tiguan 1.4tsi engine light on/running only on 95 fuel

If you do not get rid of engine light on (yellow one), and computer diagnostics say: bank intake manifold valves stuck and/or toghether with errors in lambda sensors..do not change anything until trying to run only the fuel 99 or 100 for few thousand miles...assuming that you've used until now the 95 fuel. The TSI DOES NOT RUN WELL ON 95 FUEL, although VW says it does. After several K miles using 95 fuel all the evacuation and intake system will be full of dirts. I had the same starting with 80K...and after running 10K only on 100 fuel, the system got cleaned, engine light off, engine sounds smoother and no chocking in the morning. Now I have 118k and all is fine. Until I solved the issue with the help of 100 fuel, no auto dealer could tell me the problem..all of them adviced me to change different parts, upgrades etc.

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3.2l. What are the probable causes of DTCs P2006 and P2007?

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