How do I change my fuel filter on a nissan almera 2002 1.6

what a great question!
no year told, no country , no car told just raw engine
QG18 comes in many types QG18DD,,1999 to 04
QG18DE, 1999 to 2007 QG18DEN is the natural gas version?

lacking all key facts.
I go GENERIC (full bore)

the answer is super simple..
causes spark misfire. (and scanned PCM see P03xx errors DTC)

loss of engine horse power. and wasted fuel.
or engine dead. fully and no spark at ALL.

why worry it at all.??? if scans are clean this is it if CKP does not trip CKP errors DTC

must we guess all of these and if yes why?
and more,

The QG18DE is used in the following vehicles:

• 2000-2006 Nissan Sentra B15 and N16
• 2000-2005 Nissan Pulsar N16
• 1999-2002 Nissan Primera P11.144
• 2002-2007 Nissan Primera P12
• 2000-2006 Nissan Almera N16
• 2000-2006 Nissan Almera Tino
• 1999-2006 Nissan Primera
• 2000-2006 Nissan Expert
• 1998-2006 Nissan Avenir
• 1999-2005 Nissan Wingroad/AD van Y11
• 1999-2005 Nissan Bluebird Sylphy G10
• 1998-2004 Nissan Sunny B15
• every one sold in USA all scan easy as eating cherry pie !

the CKP and CMP sensors are the base line inputs for all spark and fuel injections and timing and timing advance of spark
if spark dies the PCM cuts all fueling dead( no crash&burns)

time to get tranny serviced

2002 Nissan Almera Workshop Repair Service Manual PDF Download

for the easy solution download the pdf file

look in the engine bay against the firewall to the right under below air filter box to throttle pipe usually cylindrical shape made of metal silver or black in colour

This is a fuel problem. Make sure the emergency fuel shut off is not engaged. From there check the fuel pump, fuel relay and the fuel filter. Lastly check fuel pressure.

Here is the video of How To Replace the fuel pump.
https://www.youtube.com/watch?v=TF-JnEzcseU

no external its Incorporated with the fuel pump inside the fuel tank

If you want to solve your problem, click on the link I attached https://www.reliable-store.com/products/nissan-almera-pulsar-n16-service-repair-manual-2000-2002-download

the early models had the fuel filter mounted in the engine bay against the firewall. follow the fuel lines from the motor to the firewall. if there is no filter there then it is the late model and the filter is part of the fuel sender unit, this is mounted in the fuel tank and includes the fuel pump. this type is difficult to replace, and sometimes requires replacment of the entire sender unit.
Best way to tell is to call a nissan spare parts dept witn you VIN number and ask if this filter is replacable.

There are places online that sells them, try googling it.