low engine power?

2000 NISSAN PULSAR
180,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
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KEVINCASTROUND
  • MEMBER
  • 5 POSTS
Hi, my nissan pulsar n16 is accelerating really slow and it is having problem going uphill. also when i'm in the freeway my car speed can't even hit 100khp.
what could be the problem?
Thank you for your help.
Mar 31, 2015 at 5:40 AM
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DANNY L
  • CERTIFIED EXPERT
  • 5,648 POSTS
Hello, I'm Danny,

This situation could be caused by a few different things. First you should check to see if there are fault codes stored in your car's computer if the check engine light is on. Here is a tutorial showing how to retrieve check engine light codes:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Second, It possible you may have a weak or failing fuel pump which might not be supplying proper fuel pressure when accelerating. Here is a tutorial showing how to test the fuel pressure:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

I've attached a picture below of your vehicles fuel pressure specification. Lastly, It's also possible you could have a plugged exhaust system or catalytic converter causing this issue. I've attached a few catalytic converter tutorials for you to view as well.

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

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

Hope this this helps and thanks for using 2CarPros.


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Feb 4, 2021 at 3:19 AM