ok guys i have searched and i keep getting threads that are too old, and when i switch the show to old it brings up a different thread that's not what i'm looking for. i got a safcII in my 2000 that installed last night but couldn't get set up so luckily i could just leave it at my shop. i need to know what the intial settings would be for a 2000 with a 3" MAF. if anyone knows please help me thank you.

i tried the 1 in and 17 out and the car would idle but not rev up.

 

This is the setting for the A33 + larger MAF. You may want to check your wiring, and if anything, go back to 1/1 or 17/17 (like settings) and see how it acts.

 

ok i'll go through and do that. i'll double check everything and try those. what is the stock setting do you know? is it the 1in 1 out or 17 in 17 out

 

as long as the numbers are the same it doesnt modify the signal.. either one will work for stock MAF

 

Do you have a WB? If you're using a 3" ID MAF housing, you might be a tad on the lean side if you go w/ 1/1, etc.

 

yeah i have a 3"ID MAF. that's why i don't want to use the 1/1 but so far i can't get the car to idle right with the 1 in and 17 out. it will slowly bounce from 900 to 1200 rpms. the car will run fine once i start driving but it won't idle. i don't know why. only thing i've changed was the MAF housing. the car will idle fine with the 1in and 1 out but i don't want to drive it like that for the reason that i don't have a WB. any input would be helpful. this is really frustrating me. thanks for the help.

 

Add 4-7% more fuel @ idle. You'll sacrifice more 'tuning' points, but it might help.

This seems to be a problem w/ MT folks. Mine goes to stoich @ ~ 7% more correction @ idle and in gear (AT).

When in "P" or "N", I have to add 12-15% fuel to be stoich. Being that you're manual (MT), try adding that. Or add fuel until it idles fine, if it ever does.

 

i'm guessing your saying that when i use the 1 in 17 out? sorry to be full of questions just want to make sure. thanks for you help with this. i think as far as i know i'm the first one to put a 3" in a 2000, not sure but possibly.
so the adding of the fuel will help it from bouncing at idle?

another thing i noticed is that the car won't rev down as fast as before the safcII and the 3" MAF, is there a reason for that?

 

There are plenty of 00-01 people that include the 3" MAF in their sigs, but none have ever really commented on its performance, nor their particular set-up.


Before I had the SAFCII settings correct, it was a horrid dog, slow revving, etc. After I got my WB, I was able to see why, it was very lean. Now, even with the setting set-up 1/17, it still idles lean. Couple that with the fact that I do not have a PCV line in between my MAF and TB, which makes it even more lean.

Yes, adding fuel even w/ the SAFCII 1/17 settings was necessary.

Is your car FED or CALI spec? How many O2 sensors do you have?

 

my car is a cali spec but i don't have my secondaries in line because i have headers

 

i got the car to run decent using 1 in and 4 out which is what my buddy has on his 4rth gen and the car is not as sluggish as it with 1 in and 17 out

 

i ended up just putting the stock MAF housing back in. i'll put the 3" one on when i get my car on the dyno so i have an afr reading. a WB is on my list of parts for the summer. you think with all the work i've done to car already i should of had one. thanks for the help.

 

DC your primaries, leave your secondaries and... can we see what happens?

IIRC, 4 is the A32 set-up. ...

Why not try and get the 3" MAF to work? PM me.

 

Good info. XL I sent you a PM in regards to your MAF.

 

The reason I mentioned the O2 suggestion is because it seems as if MT's do not run the same as AT's when it comes to idle control, etc. You're the 2nd person that has tried this in an MT that has had idle problems.

So, I thought maybe it's because your O2 set-up is/was different than mine, and so is your idle control (closed loop / open loop MT vs AT).

It's an easy / quick test to perform. But it's till shooting in the dark w/o a WB.