APEXi Auto Timer settings for 4AGE 20V

et_box

500 RPM
Senior Member
Aug 27, 2006
501
13
1,518
Hi,

Does anybody know what is the optimum / correct setting for the A/F & O2 function?

Also, how would i know if my O2 sensor is still working?

Would appreciate any comments.. thanks!!!
 

tom's

2,000 RPM
Senior Member
Nov 17, 2003
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on 02 my reading during idling is around 14+,,,,,,,,
a/f jump around alot from 0.2-.8+

if ur 02 koyak, no reading at all or the reading takes very long time to read, n
the af will jump at very small gap
 

et_box

500 RPM
Senior Member
Thread starter
Aug 27, 2006
501
13
1,518
Then my O2 sensor must be out... keep getting blinking red and green lights when i select the a/f & o2 function...
 

WrX7

Known Member
Senior Member
Jan 17, 2005
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check ur engine dianogsis, this happened to me once..its not the O2 sensor that spoilt but the ecu itself...

no more error code once new ecu plugged..

wish u luck...
 

tom's

2,000 RPM
Senior Member
Nov 17, 2003
2,865
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subang
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check ur wiring of the pen timer too......for blktop.....u need to connect the timer ground to ecu ground......do not ground it to any part of the body...silvertop if diffrent....last time my 20v blktop 02 koyak no error code.....
 

20v trompet

2,000 RPM
Senior Member
Jan 20, 2007
2,024
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Aichi, Japan
Actually I have a problem to, I already install da APEXi auto timer...
the problem that i face is when I on my timer, in less then 1 week times...
my engine felt really heavy, n knocking some more... after I off da timer everything is ok n back to normal...
 

et_box

500 RPM
Senior Member
Thread starter
Aug 27, 2006
501
13
1,518
check ur engine dianogsis, this happened to me once..its not the O2 sensor that spoilt but the ecu itself...

no more error code once new ecu plugged..

wish u luck...

WHat's the reading i should get using a multimeter?
 

et_box

500 RPM
Senior Member
Thread starter
Aug 27, 2006
501
13
1,518
check ur wiring of the pen timer too......for blktop.....u need to connect the timer ground to ecu ground......do not ground it to any part of the body...silvertop if diffrent....last time my 20v blktop 02 koyak no error code.....

Hi bro, i'm using a silvertop... how should it be grounded then?
 

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