# Refresh car with some lost power and milage?

**URL:** https://forums.speedlife.net/t/refresh-car-with-some-lost-power-and-milage/122091
**Category:** SON240sx Off Topic
**Created:** [February 24, 2009, 11:26am UTC](https://forums.speedlife.net/t/refresh-car-with-some-lost-power-and-milage/122091 "2009-02-24T11:26:31Z")
**Posts on this page:** 1
**Showing post:** 54

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### Author: ![fastback240](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fastback240/32/5591_2.png) [@fastback240](https://forums.speedlife.net/u/fastback240)
#### Post date: [February 24, 2009, 4:25pm UTC](https://forums.speedlife.net/t/refresh-car-with-some-lost-power-and-milage/122091/54 "2009-02-24T16:25:16Z")

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> [@problem with a dell inspiron 1100](https://forums.speedlife.net/t/problem-with-a-dell-inspiron-1100/20474/3):
>
> lol thats me alright, im a white western alcoholic who does drugs and listens to heavy metal music. I have no education, family, in fact my family abandoned me! I would tell them ‘fuck off’ and they’d beat me then I’d call family services to come and get my parents. No one wants me! Hell I even crossdress and I beg on the street. I have no car, no job, no intellect, I can barely read or write in english much less know another language. Oh wait…  
> indigenous family.

Hey guys,

So I am going to be taking the car out soon (question of weather)… I have some more serious issues to sort out prior to track days but I also want to do some regular maintenance and extra step here and there. I put her to sleep in November after driving for about 3 weeks after the major project rebuild… all is well overall however…

What are some things to regain power/gain power, and milage.?

o2 sensor definitely needs replacement, how many does our KA24DE 91 have? I’ve been told we have two? And that there are two wire and three wire versions? My car used to be auto when I first bought it but it was since converted to a manual… if that matters. I still run the auto ecu

In November I put 10w40 redline oil and k&n gold oil filter, new oil pan (mine was bent lol), i got an msd blaster installed, 10mm race wires from magnecor,

Two-three years ago I also put a new distributor cap, iridum spark plugs, ebay cone air intake and z32 fuel filter.

I def wana put some new spark plugs in and the cone air intake is dirty as hell… o2 sensor probably has never been changed and I ran that shit that cleans the carbon so I heard that messes up the o2… so its definetely something i wana do…

Is there anything that I’m missing or not thinking about sensor wise that should be replaced for some healthy gain in power and milage.

I removed the top and side timing chain guides no more marbles lol but thats unrelated… new engine and tranny mount but thats unrelated…

i installed new 2.5" brm exhaust and the cat he supplied me… so thats fresh.

New clutch xtd stage 3 clutch kit with the chromoyl 10lbs flywheel.

On the other end… I have something loose in the fuel tank and while I’m at it i thought id get a walbro fuel pump which i can have with the installation kit for relatively good price from slippery locally… (i was getting fuel starvation issue while under hard cornering also which is funny something is def loose).

It’s a well built all around car, but i need to sort out some of these minor basic issues…

So:  
-o2 sensor (where/how much/which?)  
-z32 fuel filter (best price?)  
-spark plugs (go iridum again? which one, i may wana tune for 91 octane i am going v8 after ka24de so gotta extract NA as much without turbo)  
-aem power intake best price place for cone one?  
-anything im missing sensor/whatever maintenance-wise?

—point and case.

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