Engine loss of power

Tiny
RICH ISAAC
  • MEMBER
  • 2003 NISSAN MARCH
  • AUTOMATIC
  • 179,000 MILES
My is losing power even when I step on the pedal sensor.
Tuesday, September 28th, 2021 AT 11:13 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

This vehicle isn't offered in the US, but I will try my best to help.

First, is the check engine light staying on when the engine is running? If it is, start by having the computer scanned for diagnostic trouble codes. Here is a quick video showing how it's done:

https://youtu.be/u-4syLc-ifQ

Now, oftentimes power loss when trying to accelerate is caused by low fuel pressure. If you haven't already, I recommend checking pressure to make sure the pump is producing what is needed. Here is a link that shows how that is done:

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

Let me know what has been done so far. Also, if you have the computer scanned, let me know if there are codes found and if the fuel pressure is within the manufacturer's specifications.

One more thing. Let me know if there are any odd sounds, odors, or anything out of the ordinary that you noticed. Additionally, pay attention if there is any smoke from the exhaust or raw fuel smells.

Take care,

Joe
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Wednesday, September 29th, 2021 AT 7:44 PM

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