having a lot of trouble tuning safc using stock wide band o2 sensor. From what I read i am supposed to be shooting for 0.45 volts. At 1000rpms I can get it to bounce around 0.45 volts but once I bring it up to 2000rpm the lowest i can get it to go is around 0.75 volts.

I have a 255 walbro

It has larger secondary injectors (1000 cc I think, not sure I didnt put them in)

FCD

strangely the car doesnt have a boost sensor, but it runs fine without it .

I have my lo setting at 35 and my high at 55.

any ideas?

 

after some more reading im going to set my low position to 98 and my high to 99 since i am using the tps. Unfortunately id dont think this is going to help since im having issues with the lo map b4 i can even get enough throttle to get to the high map.

 

As i suspected it didn't really help at this point.

I know someone here has experience with these things.

 

im starting to think there is something wrong with the safc because even when i just set everything to zero it makes the car run like crap. Any ideas im about to scrap this thing for an rtek 2.1

 

Get a wideband. Narrow band is a BAD idea for tuning.

 

forget it, I just bought an rtek 2.1 today and am getting a wideband on friday.

Things should be much better this way.

Thanks for the wide band comment, I appreciate the feedback.

 

smart man...let me know how that rtek 2.1 works for yah....im getting one too in a bit..i i figured its good enough for the power i want. 350 rwhp ^_^