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Automotive/96 nissan pickup 2.4liter
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Question
I get@ 28-30 mpg in the summer but in the winter it drops down to @17-18 mpg. I have taken it to the dealer and they don't know
It is because the atmospheric pressure changes ie..the weather is colder.On your car there is a MAP sensor which is affected by pressure changes such as cold and hot weather and also altitude changes.Unless your sensor is working, you may get a large variation of fuel consumption issues such as you have.It can also be related to O2 sensors and MAF sensor.You may get your dealer to give the car a complete diagnostic but it will cost to do so.
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| Rating(1-10) | Knowledgeability = 10 | Clarity of Response = 10 | Politeness = 10 |
| Comment | Thank you very much it was the map senor. | ||
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Answers by Expert:
Sean Halliday
Expertise
general auto repair,japanese,bmw,mercedes,mini cooper 1960/2009,general british cars,ford.I DO NOT work on automatic transmissions.Manual transissions i install clutches only.Many people ask me to diagnose noises from their cars,unfortunately i cannot do this unless i hear it.As you appreciate,vehicles can and will make a variety of noises.I DONT UPGRADE or fit aftermarket performace kits,parts,chips,only replacement parts.
Experience
40 years experience on all general auto repair.
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