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View Full Version : SAFC not working below 3400rpms

txrxs
11-07-2008, 08:29 AM
So I've got a basic kae-t setup with 550's and an safc II. Car runs great overall, but under 3400 rpms the wideband seems to just bounce around and there is no adjustment using the safc. Over 3400 rpms and up in any gear it stays solid on 13.6ish(obviously lower when boosting) and I can adjust my settings accordingly.

My NE points are
800
1600
2200
2800
3400
3800
etc.

What would be causing this and what needs to be done to fix it?
IngS14
11-07-2008, 01:48 PM
have you upgrade your Fuel Pressure Regulator?
txrxs
11-07-2008, 02:22 PM
Yup, Aeromotive. Along with a walbro. Pretty much everything is accounted for, just trying to figure this out. The car runs great, I'm just curious to why I have no correction below 3400rpms.
OBEEWON
11-07-2008, 02:51 PM
Boost leak.
ewuzh
11-07-2008, 04:33 PM
Sounds like the ECU is operating in closed loop and "correcting" the SAFC adjustments you're trying to make.

Here's a good post about it: http://www.turbo240.com/forums/viewtopic.php?t=18
txrxs
11-07-2008, 04:41 PM
Sounds like the ECU is operating in closed loop and "correcting" the SAFC adjustments you're trying to make.

Here's a good post about it: Turbo240 Forums :: View topic - How a SAFC works (Part One) (http://www.turbo240.com/forums/viewtopic.php?t=18)

<3, I actually read a similar article today and it seemed that was the issue. It's not even really an issue, but more of a I wanted to know what was up thing.