AE101 Owners Club
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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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Latest topics
» 205/50 R16
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyMon May 10, 2021 12:45 pm by Nabulen Lee

» My '95 CE100 - commercial variant - AKA Star Van
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyTue Apr 06, 2021 2:37 am by Silverarrow

» The "Green Panda" Hatchback
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptySun Mar 21, 2021 8:59 pm by ORAIOO

» Ayuda con un swap de 7a 1.8 & 1mz
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyMon Nov 30, 2020 8:33 am by Alfredoalad

» Toyota Corolla Ae101 Mini Ducktail
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyFri Oct 30, 2020 8:20 am by eefui

» Nihon Giken bracket for AE101 sedan Gen 2 (world class bumper)
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyFri Oct 30, 2020 5:14 am by loidcomeback

» Charlene the AE102
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyThu Oct 29, 2020 11:28 am by Hiro

» Newzealand, AE101 Hatchback
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptySun Oct 25, 2020 10:20 pm by liam45599

» Looking for Parts
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyThu Oct 22, 2020 5:01 pm by Argew24

» FS: AE101 Corolla FX-GT JDM Front Bumper
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptySun Oct 11, 2020 9:00 pm by Toyota jim

» Toyota Corolla AE101 Scoop Bonnet
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptySat Oct 03, 2020 11:52 pm by eefui

» what coilovers are better
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptySun Sep 13, 2020 11:40 am by Eze12quiel

» FS: Rare AE101 JDM Underseat Storage Drawer
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptySun Aug 23, 2020 10:17 am by gold94corolla

» 95 Corolla SI for breaking
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyThu Aug 20, 2020 11:39 pm by AntonioRolla

» Looking at a 97 Corolla
 USING VF TERMINAL AS A CLOSED LOOP AND A/F RATIO MONITOR EmptyWed Aug 19, 2020 2:19 am by gracen

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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
Reputation : 3
Join date : 2014-10-26
Age : 50

 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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Posts : 40
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Join date : 2014-10-26
Age : 50

 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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