why are my safc settings pos(+)?

[xhaust50]

Mods are in profile, but important ones are 550 Injectors, 2g MAF and Big 16g. I bought the car with all of the work done already, and it runs very strong and gets 24mpg mostly city so I know it is tuned pretty well. Anyway, the SAFC on low throttle is all up 11%, and on hi-throttle starts at +4% and gradually increases to +12% by 6000 rpms. It seems everyone on here is subtracting fuel, which makes sense. But the car seems to run very well, and I bought it from a moderator on a DSM forum. Any explanation?

 

[bluetlr2001]

Not to sure about it but it may have to do with you having a 2g maf and a 1g ecu it may not accomadate correctly so that may be why it is increased.

 

[v8killerr1]

you more than likely have a big boost leak. Have you tested for a leak yet

 

[dnhieu]

ummm...wouldnt a boost leak cause you to run rich? if hes rich he wouldnt be adding fuel he would be taking it away....

 

[tom04841]

Most likely have a vacuum leak. After i did the 16g swap, i forgot to plug in the lines ton the intake...you know the 2 nipples. Haha ...i said NIPPLES.

Anyway, it sounds like you are getting unmetered air somewhere causing a lean condition and the previous owner compensated for it by adding fuel.

Just my .02

 

[TwoLiterLaser]

Check and make sure that the 2g MAF is wired correctly and the pins switched. Is the MAF hacked? If the car runs fine, then don't fix what ain't broke, but it is still curious, no?

 

[v8killerr1]

ummm...wouldnt a boost leak cause you to run rich? if hes rich he wouldnt be adding fuel he would be taking it away....

vaccum leak is what i meant

 

[yardie]

The 2G MAS flows more air that the 1G MAS, so that may compensate for your 550's, so baring boost/vacuum leaks, I wouldn't fix what is not broken.