Engine loss of power

2003 NISSAN MARCH
179,000 MILES • AUTOMATIC
Avatar
RICH ISAAC
  • MEMBER
  • 11 POSTS
My is losing power even when I step on the pedal sensor.
Sep 28, 2021 at 11:13 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 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
Sep 29, 2021 at 7:44 PM