Where does your A/F ratio set at on idel?
#1
Senior Member
Thread Starter
Where does your A/F ratio set at on idel?
Hello, I have a quick question. I have a 87TII all stock but I have a boost gauge and A/F gauge.
My question is at idle is the A/F gauge supposed to be in the RICH area? mine reads 2bars in to the RICH at idel! I thought it was supposed to read LEAN at idel and RICH when you put the pedal down? it smells a little Rich but I have not been able adjust the A/F to have it read lean at idel. What does everyones elses read?
My question is at idle is the A/F gauge supposed to be in the RICH area? mine reads 2bars in to the RICH at idel! I thought it was supposed to read LEAN at idel and RICH when you put the pedal down? it smells a little Rich but I have not been able adjust the A/F to have it read lean at idel. What does everyones elses read?
#3
adjust your TPS using the OHM method. im going through it right now. it should be at 1K OHMS when the throttle is at idle position then 4-6K OHMS at full throttle
read the FSM. under the fuel and emissions section there are a few pages on how to adust the TPS
read the FSM. under the fuel and emissions section there are a few pages on how to adust the TPS
#4
Passing life by
Originally Posted by DAN CARWIN
Hello, I have a quick question. I have a 87TII all stock but I have a boost gauge and A/F gauge.
My question is at idle is the A/F gauge supposed to be in the RICH area? mine reads 2bars in to the RICH at idel! I thought it was supposed to read LEAN at idel and RICH when you put the pedal down? it smells a little Rich but I have not been able adjust the A/F to have it read lean at idel. What does everyones elses read?
My question is at idle is the A/F gauge supposed to be in the RICH area? mine reads 2bars in to the RICH at idel! I thought it was supposed to read LEAN at idel and RICH when you put the pedal down? it smells a little Rich but I have not been able adjust the A/F to have it read lean at idel. What does everyones elses read?
#5
Banned. I got OWNED!!!
Join Date: Dec 2002
Location: wishing i was back in FL
Posts: 4,192
Likes: 0
Received 0 Likes
on
0 Posts
yea it doesnt sound like he has a wideband. if you are just using a single wire light show then dont bother trying to read it. those are worthless.
Trending Topics
#12
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
13 AFR give or take a couple of points. 14's will give you a puff, puff missing at idle situation.
If a person has a car with the airpump installed and a working ACV, the afr will be in the mid 14's using a wideband and if using a digital meter on a stock 02 sensor he'll see a lot of zeros's IF the stock emission system is working right.
If you have a car with no emissions, no airpump, then a narrow band meter(read Auitometer), will read rich or if using a digital meter to read it (read Fluke meter), it will read something like 0.7 vdc at idle.
If a person has a car with the airpump installed and a working ACV, the afr will be in the mid 14's using a wideband and if using a digital meter on a stock 02 sensor he'll see a lot of zeros's IF the stock emission system is working right.
If you have a car with no emissions, no airpump, then a narrow band meter(read Auitometer), will read rich or if using a digital meter to read it (read Fluke meter), it will read something like 0.7 vdc at idle.
#16
Locust of the apocalypse
Join Date: Apr 2003
Location: Directly above the center of the earth (York, PA)
Posts: 2,553
Likes: 0
Received 1 Like
on
1 Post
EVERY street ported turbo car i've tuned has read 12.6-12.8 at idle when its warmed up and i've monekyed with the idle to get it smooth (haltechs)
MOST stock engines seem to like around 13.2 +/- 1
Now i've never stuck the wideband on a bridgeport or a peripheral port.. but i've smelled the exhaust.. they have to be richer!!!!
N/a'S seem to be able to get a bit leaner.. mid 13's, most likely because of the higher compression
MOST stock engines seem to like around 13.2 +/- 1
Now i've never stuck the wideband on a bridgeport or a peripheral port.. but i've smelled the exhaust.. they have to be richer!!!!
N/a'S seem to be able to get a bit leaner.. mid 13's, most likely because of the higher compression
Last edited by YearsOfDecay; 06-21-05 at 10:58 PM.
Thread
Thread Starter
Forum
Replies
Last Post