Open / Closed loop on 1993 22RE. How to tell?
09-08-2023, 05:32 AM
#1
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Open / Closed loop on 1993 22RE. How to tell?
Hey everybody,
I just finished rebuilding the upper end on a 93 22RE. How can I tell if my engine is making it into closed loop mode? Does anybody have an answer? I’ve looked high and low to no avail and need a bit of assistance here.
Thanks all,
Douglas Vaughn
I just finished rebuilding the upper end on a 93 22RE. How can I tell if my engine is making it into closed loop mode? Does anybody have an answer? I’ve looked high and low to no avail and need a bit of assistance here.
Thanks all,
Douglas Vaughn
09-08-2023, 06:06 AM
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"Test" the o2 sensor. https://web.archive.org/web/20150306...42oxygense.pdf In closed loop, the voltage will flop back and forth ("fluctuate") nominally 6 times in 10 seconds. (The Vf signal is a conditioned version of the sensor output, so it goes from about 0v to about 5v.)
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old87yota (09-11-2023)
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