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AE101 Owners Club is a group of 7th gen Corolla enthusiasts from all over the world. If you're a fellow enthusiast, then join us today!
 
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» Charlene the AE102
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyWed Feb 26, 2020 1:44 pm by Hiro

» ae101 wind deflectors
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyTue Feb 25, 2020 4:50 am by emmet.harten3

» The "Green Panda" Hatchback
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyWed Feb 19, 2020 10:46 pm by ORAIOO

» AE101 arm rest
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyFri Feb 14, 2020 4:08 am by emmet.harten3

» What bz touring bumper chin is this?
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyWed Feb 12, 2020 6:59 pm by vic125

» 4age 20v Blacktop Velocity Stacks
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyFri Jan 31, 2020 6:15 am by AhmadMohammed4age

» AE101 Corolla DX SW Station Wagon REAR Bumper Reinforcement & Brackets
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptySun Dec 22, 2019 1:20 am by sozzled

» Grandpa`s Corolla
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyTue Dec 17, 2019 10:39 am by Azeem123

» My corolla 1.3Turbo
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyTue Dec 17, 2019 9:25 am by crusty rolla

» conversion to 5x114.3
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyFri Dec 13, 2019 12:48 pm by noodlekid

» What is your Coilover Setup ?
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyWed Dec 04, 2019 8:20 am by gold94corolla

» gold94corolla's Subaru Impreza Front Bumper DIY!
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptySun Dec 01, 2019 10:04 am by Azeem123

» Front & Rear 5 Lug Swap
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyTue Nov 26, 2019 1:48 pm by CloudStrife

» Power retractable (folding) JDM mirror wiring
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyTue Nov 19, 2019 5:36 am by Dennisrolla

» FOR SALE
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyMon Nov 18, 2019 4:38 am by Mikey23

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  USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR

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redwing0001
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Posts : 40
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Join date : 2014-10-26

 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR Empty
PostSubject: USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR    USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyTue Oct 28, 2014 3:27 am

I found the link to find out if the engine is good or not:

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0CDIQFjAC&url=http%3A%2F%2Fwww.autoshop101.com%2Fforms%2Fh27.pdf&ei=Im9OVPzgGoLZmgXtgoKAAw&usg=AFQjCNE31G-KBY05yVRry9YN38qEx7QEfQ&sig2=UUNE1WUogFig7-g-uI0mRw

Its a google document that has instructions on how to pull codes from an older toyota engine. But it also has information on how to test whether the oxygen sensor is giving a true reading or not.

The information is listed near the end of the PDF, look for this title:

USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR and follow the instructions there.
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redwing0001
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Join date : 2014-10-26

 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR Empty
PostSubject: Re: USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR    USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyThu Jan 08, 2015 6:38 pm

I had the chance to do this recently and I immediately noticed a change in the mileage of the car..... I had a MAP ENHANCER installed (potentiometer from MAP sensor output to ecu) and adjusted  it while looking at the VF pin output until the numbers started changing from 2.5V DC....

From that time on, it was running much better and more fuel efficient.

That was until spark plug 1 went out and I thought I broke something.... I even reset the ecu thinking it may change something and never did until I checked the spark plug..... only number 1 had black dry deposits..... all other ones had the usual tan brown on them.

changed it then regretted messing around with the potentiometers before.... I will need to check again to see if the map setting is dialled down again.
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