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- - tuning (https://mitsubishiforum.com/forum/pcm-fuel-systems-26/tuning-8673/)

I was just wondering if you guys have any advice on tuning, I'm going to be putting in a safcII next weekend. I have a 2nd gen with turboback exhaust, mbc, bov, intake, and a lotta other stuff, just not a turbo upgrade yet. I was planning to lean it out a little because its really rich right now.

Ok first off how do you know it running lean? You don't...you need a wideband O2 sensor, or a slow EGT. Then you find out the ideal AFR and tune your car to it. I doubt the car is running rich if anything its running to lean right now....depending on your boost setting. Your best bet is to get a wideband first before the AFC....the AFC is useless with out it, don't even try to tune with out it you will probably blow your motor, especially if you think you want to lean it out.

Quote:

ORIGINAL: NESpeed

Ok first off how do you know it running lean? You don't...you need a wideband O2 sensor, or a slow EGT. Then you find out the ideal AFR and tune your car to it. I doubt the car is running rich if anything its running to lean right now....depending on your boost setting. Your best bet is to get a wideband first before the AFC....the AFC is useless with out it, don't even try to tune with out it you will probably blow your motor, especially if you think you want to lean it out.

He is 100% correnct on all points. I have an SAFCII and a wideband and trust me it is easy to tune and figure out but without the wideaband you are risking blowing your motor pretty easily. If you have bigger than stock injectors then your rich if not you are probaly on the lean side slightly I would strongly not recommend tuneing with out the wideband if you have one youll have your car tuned within an hour it is that easy but you also know youll be in the safe zone still and not risking blowing it up

http://www.extremepsi.com/store/cust...cat=747&page=1

should i get this since im going to put an safc in my car to?

thanks, after i get that and the afc installed can you guys help me out with it.

im pretty sure you will but i just want to ask.

that is what you want bat that is a high price for a wideband O2. Try either ebay (not totally a good choice but an option) or go here, it is much cheaper. You don't need the PLX one if all your using it for is the SAFC

http://tearstone.com/shop/index.php?...d=105&Itemid=2

yeah i dont totally trust ebay. and ill go with the wideband from tearstone.

Quote:

ORIGINAL: 93eclipsegsx

yeah i dont totally trust ebay. and ill go with the wideband from tearstone.

My wideband is from tearstone and it is easy to read and it is interchangable too, meaning you can change it so it has a black or white face and a black or silver bezel

http://i33.photobucket.com/albums/d9...exhaust002.jpg

Do you have any fuel mods? If not you should really consider purchasing a fuel pump and injectors before or with the AFC....