02 Sensors and Ranges
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Member
Joined: Apr 2014
Posts: 194
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From: Los Angeles
Car: 1989 Formula 350
Engine: 350
Transmission: T-5
Axle/Gears: 3:23
02 Sensors and Ranges
I finally got my TunerPro RT up and running. My 89 350TPI has a couple intermittent issues that I've been trying to pin down.
On the data log I'm getting wildly ranging readings of 100-900 on the O2 link. The other parameters tied to the O2 are also out of range....
The O2 sensor is a Carquest Bosch unit. I've read a few things and I've ordered up a ACDelco AFS21 to replace it.
Any chance I've found my culprit ?
On the data log I'm getting wildly ranging readings of 100-900 on the O2 link. The other parameters tied to the O2 are also out of range....
The O2 sensor is a Carquest Bosch unit. I've read a few things and I've ordered up a ACDelco AFS21 to replace it.
Any chance I've found my culprit ?
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: 02 Sensors and Ranges
In closed loop the O2 sensor signal is supposed to oscillate. See posts 8 & 9 in this thread for some screenshots:
https://www.thirdgen.org/forums/diy-...int-delay.html
RBob.
https://www.thirdgen.org/forums/diy-...int-delay.html
RBob.
Thread Starter
Member
Joined: Apr 2014
Posts: 194
Likes: 2
From: Los Angeles
Car: 1989 Formula 350
Engine: 350
Transmission: T-5
Axle/Gears: 3:23
Re: 02 Sensors and Ranges
That pretty much looks like mine... except I'm hitting 900+ ... But it is oscillating like that