I went to a mechanic to check the sensors especially oxygen's sensor on the computer, but the computer didn't show any problem. May not the sensor totally fault and sending wrong information to the car's computer to consume more fuel than the required? I hope you will tell me as soon as possible about the problem to start repairing it just after your replay.
Check the injectors for faulty tips. check the cat converter is not failed (blocking the system) check for dragging brakes especially the handbrake. Iam thinking that the mechanic did not know how to connect up the scanner properly as there has to be fault reports as it will be way out of the tuning parameters of the ECM
Testimonial: "Thanks a lot, but I checked the brakes,and they were good, I think the problem is electric. I'll check the cat converter as you suggest Thank you again. Also;I'm very thankful if you send me another tips in order to solve this problem."
CHECK EMITIONS.IS EVERYTHING OK THERE?THAT IS THE FIRST CHECK....IS CHECK ENGINE LIGHT ON?THE CONSUMPTION IS A LOT INDEED..
Testimonial: "I didn't understand what you are talking about exactly; Do you mean I have to check exhaust's emission? Tell me what do you mean exactly; please?"
SOURCE: high fuel consumption
change o2 sensors every 60,000 miles and use iridium plugs they will outlast engine.
check engine light will not come on until sensors are completely shot,this also goes for your mass air flow,had same issues with 99 beetle happened at 80,000 miles,changed all three items ended up with 35mpg after getting 24mpg before fix.parts are cheap on ebay.
SOURCE: I have a 2001 Audi A6 2.8 Quattro that needs new oxygen sensors
YOU HAVE 4 OXYGEN SENSORS AND IF YOU HAVE A 2.7T YOU WILL HAVE TWO EXHAUST TEMP SENSORS ALSO . GET THEM FROM AUTOHAUSAZ.COM
SOURCE: Alarm oil sensor in my Audi A6 1,9 tdi -2000.
sounds like a faulty oil level sensor i,v replaced them in the past you need to get it checked first because the sensors aren,t cheap
SOURCE: 1990 Audi, 90. Information on oxygen fuel
The oxygen sensor is located in the exhaust right before the catalytic converter. It is a 3-wire type sensor. You will need to use an oxygen sensor to get it out, and a handy tip is to spray it with some penetrating liquid, then let it soak for 20 minutes before removal.
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