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91 tarago running very rich fuel consumption very high why?

New fuel and air filters new plugs and leads

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  • rino franceschini Feb 21, 2012

    that could be the problem but at $285ea i'll need 2, it's a bit too pricey if that's not the problem

  • rino franceschini Feb 21, 2012

    thanks for your advice is there an easy way to remove O2 sensors they are pretty tight also how can i tell if they are working or not ?

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  • 183 Answers

O2 sensors are what controls the fuel air mixture on a fuel injected engine. You will find them on the exhaust. They are attached to the wires that seem attached to your exhaust pipes under the car. Should be a 15\16 or a 22mm. You will need an open ended wrench for this task.

Posted on Feb 16, 2012

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Posted on Jan 02, 2017

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SOURCE: we have the same prob

plugged air filter will result in too lean.not too rich. have the fuel pressure tested. overfuelling will result in the catalytic converter overheating.if the 02 sensor on the catalytic is no good,it will not sense unburnt fuel and the ecu will overfuel. check the air inlet hose and the airflow meter

Posted on Jul 13, 2009

  • 14036 Answers

SOURCE: Very high fuel consumption on 2002 Honda Odyssey

transmission slipping dragging brakes.timing off worn timing belt .bad spark plugs + wires +coil.defected valves and worn cam shaft.use scanner to check oxygen sensor. run engine 5 minutes look at scanner . should read closed loop . if read open loop replace oxygen sensor.

Posted on Apr 03, 2009

  • 273 Answers

SOURCE: High fuel consumption

try adjusting the distributor

Posted on Jun 08, 2009

  • 5 Answers

SOURCE: engine problem

get your car diagnosed by OBD tool. you have sensors malfunction. may be oxygen or coolant sensor. check MAP also. does the smoke smell fuel. then your car is running on rich cycle.

Posted on Aug 24, 2009

pippall
  • 1486 Answers

SOURCE: 1990 corolla high fuel consumption

Replace the air flow meter.That will cause you to use a lot of fuel.

Posted on Sep 01, 2009

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Please remember to rate this soltion.

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