I soldered the connections for the SAFC2. One of them was a big blob. I wanted to fix it. It was on the black/gnd wire. I had the black and brown wire about 1.5 cm apart. I spaced it out about 1/4 of an inch more.

SINCE I have done this, my car stumbles at part throttle in 2nd and 3rd gear. It seems to happen under no boost. It also happens sometimes shifting from 1-2, and then hitting 2nd at part throttle. It seems to happen most when there is 0% correction on the SAFC. And when it happens, I go WOT and it stays bogged from like 2300 rpm to 4500 rpm and then clears up.

I was thinking that maybe the correction factor was different since the space of the wires is different. But, at 0 correction factor, that should not matter.

It would be my guess that the car is flooded. And it does not hapen all the time.

Anyone have any ideas?

I let my buddy borrow my OBD2 tool. I should have that back tomorrow, anyone else experience this?

And when I had the SAFC at 0 this did not happen. After I got it tuned this did not happen. It was me moving that damn wire and everything has gone to ****. I may remove it totally and see if the problem is still there.

 

I guess nobody has an answer. I was able to fix it by lowering the correction factor. I guess I messed up the Millisecond time delay by moving it at all.

Oh well.

 

is it a cm apart still?

 

No more. I was unable to get it 1 CM apart again, due to solder overrun. 1.5 cm would be my guess. The instructions say at LEAST 1 cm apart. So I thought 1.5 would be ok.

 

Just get desoldering braid and resolder.

 

did any solder go anywhere else?

 

Nope, are you thinking there is a problem by being more than a CM apart?

I double checked the install instructions, it says at least a cm apart.

 

maybe. how did you attach it last time?

 

when you say "how" what do you mean?

I attached it with solder, and the wires 1 cm apart. The black and brown wires came in straight onto the gnd wire and wrapped aroud it and had solder hit the black and brown wire and it seeped in both directions.

Answer your question?

 

yeah, i just wrapped and crimped mine.

i trying to brainstorm what could be wrong.

 

The only thing I could figure was that the safc sends "pulses" of voltage. 1 may be .02mvs and the next may be .03mvs... with the 2nd gnd it can make the ecu think the maf is operating fine.

I think when I moved the 2 wires, it legthened the pulses and threw everything off. It's kind of like, hook it up once and set it up. If you move wires. reset it up.

The settings that were dyno tuned in were no longer vaild. I am probbly going to put the wires 1cm apart agian, and redyno tune, and not F with it anymore..lol

Thanks for the help

 

yeah, those the ecu can be "tricky" sometimes.

Good Luck
Steve

 

Well I found the "root" of my ecu going crazy...

Someway somehow, I broke ~90% of the gnd wire that the black and brown wires were attached to.

I found it last night as I was cleaning everything up. It was broken right after the solder joint going to the ECU. SO the MAF gnd was not 100%.. That will cause some driving problems

SO I attached the blk/brn wires to pin 25, ECU gnd and resoldered the MAF gnd with only the maf gnd, now everything is fine. Dynoing tomorrow to double check my numbers and make sure nothing needs to be changed since it's getting colder.

AND FWIW, I have the black and brown about 2 cm apart, no problems.

Thanks for the help and those pesky wires will get you every time.

 

im glad you found it.