02 sensor lean/rich transitions
01-26-2007, 12:39 PM
#1
Junior Member
Thread Starter
Join Date: Aug 2002
Posts: 0
Likes: 0
Received 0 Likes
on
0 Posts
02 sensor lean/rich transitions
I got an Auto-tap today with the GM enhanced peramiters and did a few readings on my car. I did one specifically on the 02 sensor and transitions between lean/rich in a 100 second span. In a little over a minute and a half, there were only 71 transitions. Doesn't that seem pretty low? That'* less than one transition per second!
01-26-2007, 12:56 PM
#3
Junior Member
Thread Starter
Join Date: Aug 2002
Posts: 0
Likes: 0
Received 0 Likes
on
0 Posts
on a related note, here'* my first scan with a few peramiters on it. I deleted about half of them on the table though because they were just system scans like "OBDII system ready, etc.)
Everything seems to look pretty good. It'* good to atleast know I'm getting 0 knock retard.
I'm running premium right now though so I'm going to see what it does in a week when I put regular in it.
Everything seems to look pretty good. It'* good to atleast know I'm getting 0 knock retard.
I'm running premium right now though so I'm going to see what it does in a week when I put regular in it.
01-26-2007, 01:35 PM
#4
Junior Member
Thread Starter
Join Date: Aug 2002
Posts: 0
Likes: 0
Received 0 Likes
on
0 Posts
Here'* readings from just the oxygen sensor/engine speed.
I don't know what it all means, so if someone could clarify.. it seems like the sensor is pretty slow to respond?
I don't know what it all means, so if someone could clarify.. it seems like the sensor is pretty slow to respond?
01-26-2007, 01:42 PM
#5
DINOSAURUS BOOSTUS
Expert Gearhead
Custom.. when you have that many parameters..it'* only reading at the interval mentioned next to the data, the toggling can be happening much more frequently.
01-26-2007, 01:44 PM
#6
Junior Member
Thread Starter
Join Date: Aug 2002
Posts: 0
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by BillBoost37
Custom.. when you have that many parameters..it'* only reading at the interval mentioned next to the data, the toggling can be happening much more frequently.
I can't even get over 22 MPG on highway drives. it'* sad.
01-26-2007, 02:43 PM
#10
Guest
Posts: n/a
Custom, I think I am in agreement with Bill... seems the sensor is a bit on the slow side to toggle, Its functioning withing the proper range, but the toggle rate seems sluggish...
Even on my Old beater I can watch the mv on the sensor, as well I can watch it toggle rich lean.... In a 5 second period I usually see rich,lean,rich,lean,rich,lean...
If you have dropped that much milage and can do no better than 22 on the road you may be due for a new O2... Heck even 3.5 Shortstars should do better than 22 on the road with that 4T65-E
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
Even on my Old beater I can watch the mv on the sensor, as well I can watch it toggle rich lean.... In a 5 second period I usually see rich,lean,rich,lean,rich,lean...
If you have dropped that much milage and can do no better than 22 on the road you may be due for a new O2... Heck even 3.5 Shortstars should do better than 22 on the road with that 4T65-E
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
