Nissanhelp.com Forums

Nissanhelp.com Forums (https://x.nissanhelp.com/forums/)
-   Maxima (https://x.nissanhelp.com/forums/maxima/)
-   -   Fuel Filter Replacement in a 2001 Maxima (https://x.nissanhelp.com/forums/maxima/11720-fuel-filter-replacement-2001-maxima.html)

searcherrr 05-30-2009 03:27 PM

Fuel Filter Replacement in a 2001 Maxima
 
I recently have gotten fancy and gotten an ELM OBDII interface to use with my laptop and free OBD software. I put it on my mom's Maxima to see if I could figure out a slight hesitation or maybe even half-second bog down before it thrusts forward on a pedal stomp. Its only got 52k miles on it.

The software showed (at idle) a lean mixture at full warm temp. Am I supposed to see Lean mixture at idle? or is this a clue that fuel filter is clogged?

This only happened once, but one time just after getting gas from nearly an empty tank we got on the road and gave the pedal a moderate stomp to get up to 55 on the state hwy and it nearly killed. Has not happened since then, but I really believe because this car is so wonderful and has no other problems that the fuel filter is clogging from sitting so much.

I look up the fuel filter procedures and I don't think the manual for it is on this web site's knowledge base and a lot of the service procedures say to let a tech do it and that its not supposed to have to be done.... well... BS. I know better.

So where is the fuel filter and is there anything special I have to know about replacing it?

What do ya'll think about it running Lean at idle with so few miles on it and no other engine troubles whatsoever?

desert_fox 05-30-2009 06:21 PM

Fuel filter is in the gas tank with the fuel pump. The entire servie manual is available if you join the site. Really a bargin.

If you were running lean, you would get a code. I would probably replace the plugs.

searcherrr 05-31-2009 02:32 PM

Yeah, there are no codes. Thanks though.

I thought the OEM plugs were supposed to be good for 100k miles?

nissan master tech 05-31-2009 05:52 PM

check you mass airflow sensor might be dirty

desert_fox 05-31-2009 06:01 PM

Quote:

Originally Posted by searcherrr (Post 40785)
Yeah, there are no codes. Thanks though.

I thought the OEM plugs were supposed to be good for 100k miles?

I changed mine at 60K. It was like getting a new car.

searcherrr 05-31-2009 06:18 PM

Wow, I have the manual and getting to the plugs on this car is amazingly easy. Thats how easy it should be on all car's IMHO.

I've got some mass airflow cleaner too. Would be worth it to clean the element.

streamcast 06-01-2009 04:24 PM

Try cleaning the mass air flow meter. The meter has a window of value that it can operate, give some drivability but no code. I do beleive the alpha ratio is from 90% - 115 % before it will trigger a code or if it stay in the min or max value for a certain amount of time. However in your case the alpha ratio maybe at 115 at that given time of hestitation. Have never replaced the sock/ filter in the maxs.


All times are GMT -8. The time now is 07:29 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO v2.0.42 (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.