safc question

[pur97tsifwd]

Ok i have a 1g with 650cc injectors, b16g, dejon intake, k&n filter, 2.5 o2 housing, 3inch turbo back exhaust with test pipe, ebay fmic, 190lph pump, Hacked 1g maf hunnycomb out and screw backed out flush. My low throttle 1k setting is -24 2k is -18, and my 3k is -12 my low fuel trim is showing 117% is this rich or lean and which way do i need to take my 1k setting should i go -18 or should i go -28 to make it go down to 100%.

 

[pur97tsifwd]

Also my o2 sensor voltage read at idle .05 and will drop to .03 and go back and borth between the two numbers i think its bad idk. I will try and get a video.

 

[pur97tsifwd]

Here is a video of my o2 voltage if this helps?
My base timing is at 5

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[toofast82]

117% is lean, add fuel, here's a few articles to help you out
Apexi Super AFC For The Eclipse/EVO
RRE's Super AFC Setting and Adjustment Tips
http://www.dsmtuners.com/forums/articles-tuning-ecu/58403-definitive-piggyback-tuning-guide.html

 

[pur97tsifwd]

I have read all those articles i was just confused on that part I understand now i am thinking i have a o2 sensor that need replaced if you could watch the vid that would be nice and tell me if it need replaced I dialed everything to zero because i was getting knock but the fuel trims have not changed to see were i am at.

 

[pur97tsifwd]

my o2 sensor was bad got a new one now my fuel trims change alot having trouble dialing in my 650cc injectors thought if any one who has done 650cc on a 1g hacked maf would like to know your settings.

 

[rstchris]

You are gonna need a wideband o2 for WOT tuning but for CL trims just try to get it zero'd or in your case 100%. Set the throttle points and start out with about -20% (low throttle) and go from there.

 

[airmail96]

Aren't 650s pushing it using an safc?

 

[JayRolla]

Its not the safcs ability to control injectors thats the issue. I ran 1200cc injectors on an safc with no issue on e85. The problem is when you pull lots of fuel out you trick the ecu into seeing less airflow. So when you at full boost the ecu see's less airflow and may stay in a higher timing map and never make it to the low timing map made for WOT. So you get to much timing and it may cause knock.

But with a 1g you can always pull timing out with the CAS. 650's is the largest you really want to go without causing to much of a timing issue. 2g's get away with 650's easier since they have a lower timing map to begin with. I got away with my injectors because I ran e85 and it loves the timing.

 

[pur97tsifwd]

I would post a log but i have a m125 and vista and cant figure out how to sync them or figure out how to save my logs to the memory stick to upload them.