No power and poor gas mileage

2004 NISSAN MICRA
100,000 MILES • 1.2L • 2WD • MANUAL
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GAVINCLYNE
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  • 1 POST
I have had engine light on and rough car idle for a while now and changed throttle body. It stopped the misfire but would not start now. So I changed crankshaft sensor and now it had a long crank and very little power and high fuel usage.

I have changed the spark plugs, ignition coils, camshaft sensor, o2 sensors and throttle body. Do not know what this could be? My vehicle is a K12 model.

Sep 16, 2018 at 2:00 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
Hi and thanks for using 2CarPros.com.

First, this vehicle is not sold in the US, so my information is very limited. However, what you are describing sounds like a plugged catalytic converter. Take a look through these links. It describes the symptoms, how to check a converter, and in general, how to replace one.

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

https://www.2carpros.com/articles/catalytic-converter-replacement

I hope this helps. Let me know if you have other questions.

Take care,
Joe
Sep 17, 2018 at 5:25 PM