Is SS air/fuel meter working properly?
#1
Registered User
Thread Starter
Join Date: Jan 2003
Location: houston
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
Is SS air/fuel meter working properly?
I just installed my Split Second air/fuel ratio meter, but I don't think it's working correctly. I still haven't done any fuel mods, but the meter keeps jumping back and forth when I drive at constant speeds. Is this normal? Even when I barely hit the gas the meter will hesistate but go all the way to the richest (last blue light) and then fall back down. I will eventually do the fuel mods, but I was wondering if I installed the meter correctly. I installed the new O2 sensor right in front of the catalytic converter next to the toyota O2 sensor. It is at an angle going downward. I had to use my own wiring since there wasn't enough, which might have been slightly thicker, but that shouldn't make a difference.
Any suggestions?
thanks
Any suggestions?
thanks
#2
Contributing Member
Join Date: Jul 2002
Location: Tempe, AZ
Posts: 324
Likes: 0
Received 0 Likes
on
0 Posts
That meter is only accurate at WOT. Otherwise enjoy the light show.
When you mash down on the gas, then it will stabilize and become more accurate. (Still not perfect, but close)
Dan
When you mash down on the gas, then it will stabilize and become more accurate. (Still not perfect, but close)
Dan
#3
Registered User
Thread Starter
Join Date: Jan 2003
Location: houston
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
Well then, I'm really confused. When I floor the pedal then most of the time the meter stays constant on the last blue light, which is the richest reading. How can I have a supercharger with the deckplate out and no fuel mods show the richest reading? I look at my S-AFC when I do this and it says my throttle is only 75% open. What is wrong? Why am I not close to 100 % and why is the meter telling me that I don't need fuel mods? Everthing on the S-AFC is at 0 so I guess it is acting as though it is passive.
#4
Registered User
Join Date: Dec 2002
Location: Deep Gap, NC
Posts: 4,697
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by 4runner
Well then, I'm really confused. When I floor the pedal then most of the time the meter stays constant on the last blue light, which is the richest reading.
Well then, I'm really confused. When I floor the pedal then most of the time the meter stays constant on the last blue light, which is the richest reading.
What about when you are at full throttle around 90 mph. Does it come back down or does it stay at the richest blue light?
How can I have a supercharger with the deckplate out and no fuel mods show the richest reading? I look at my S-AFC when I do this and it says my throttle is only 75% open. What is wrong? Why am I not close to 100 % and why is the meter telling me that I don't need fuel mods? Everthing on the S-AFC is at 0 so I guess it is acting as though it is passive.
What is the richest setting on the SS air/fuel meter? What's the ratio? Are you using a wide band O2, or just the stock Narrow band O2?
Chris
#5
Registered User
Thread Starter
Join Date: Jan 2003
Location: houston
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
I'm not sure but I think it's just a narrow band. I bought the SS meter that comes with an O2 sensor, since I have a 2000 4runner. Also, my 4runner idles at 0% throttle. I don't understand how yours can idle at 10.5%.
Richest setting is 12.5:1. Like I said, the last blue light lights up when going under 70 miles per hour or so. Then when I floor the pedal the second to last blue led lights up indicating 13.2:1
thanks
Richest setting is 12.5:1. Like I said, the last blue light lights up when going under 70 miles per hour or so. Then when I floor the pedal the second to last blue led lights up indicating 13.2:1
thanks
Last edited by 4runner; 06-22-2003 at 10:55 AM.
#6
Registered User
Join Date: Dec 2002
Location: Deep Gap, NC
Posts: 4,697
Likes: 0
Received 0 Likes
on
0 Posts
How do you know what throttle position you are at at idle? I know there's no throttle on, but have you checked to see what percentage you're at, because I haven't seen any different readings. Are you using a BR-3 or SMT-6 software?
Chris
Chris
#7
Registered User
Join Date: Mar 2003
Location: Orlando, FL
Posts: 306
Likes: 0
Received 0 Likes
on
0 Posts
It's not unusual for the throttle to go to 100%. On Supra's the throttle will only go to 70-75%. You just have to change your low/high throttle setting for this. Just check what your setting by pushing the pedal to the floor with the truck off. That will be your max. Put your high setting to 60% or so.
John
John
Trending Topics
#8
Registered User
Join Date: Dec 2002
Location: Deep Gap, NC
Posts: 4,697
Likes: 0
Received 0 Likes
on
0 Posts
Yeah, that makes sense to me, but FattyCBR has one of the units that will only work at 100% throttle, and is not adjustable. Any idea which Apexi unit that is?
Chris
Chris
#14
Registered User
Join Date: Dec 2002
Location: Deep Gap, NC
Posts: 4,697
Likes: 0
Received 0 Likes
on
0 Posts
Don't know for sure, but I'd say the voltage that comes off of it is too far off, and the NA Supra MAF works because it isn't as far from the stock one, I guess. I'm not 100% sure, though. The other problem may be that it doesn't plug up to our stock wiring harness, which may be the only real reason. Not sure!
Chris
Chris
#15
Registered User
Join Date: Mar 2003
Location: Orlando, FL
Posts: 306
Likes: 0
Received 0 Likes
on
0 Posts
Thanks man. I have both at work so I'll check the plug. I have spare plugs (I could cut and splice if there different) for the TT MAF. I'm waiting on the SAFC II limited edition (black) to come in before I install my fuel mods. I have new O2 sensors coming for the dyno soon. Then I can find out whats whats with all these fuel mods.
Thread
Thread Starter
Forum
Replies
Last Post
Jnkml
95.5-2004 Tacomas & 96-2002 4Runners
3
07-06-2015 01:20 PM