How to read Air Fuel Ratio Meter?

[Joeker]

If u guys are scared of terminally damaging the engines from worng A/F, why not get it checked out by tune-up shops who have wide band 02 sensors? Most of the tuners in Sunway have em'.

Spending a couple hundreds sorting out the A/F ratio sure as hell worthwhile than spending thousands later rebuilding/replacing blown engine. THink about it.

If not mistaken, the cheapest 02 wide band read out cum tuning session is about RM150~200.

 

[Master D]

Hi Guys,

I'm using the Autometer A/F meter. Based on what I have read here, it should be operating correctly....on idle its bouncing from lean to rich....BUT when I accelerate, the meter will read rich for a couple of seconds the its goes all the way down to lean (while on full throttle)...like 2 red LEDs kinda lean....can anyone tell me whats goin on??

O2 sensor kong? :(
Really lean a/f ratio? :( :( :blink:

 

[Master D]

tolong!? :unsure:

 

[StoneGod]

so what u guys saying is that if we use Motec,Haltec,Microtech the readings of the a/f will be realtime rite and its cos of the sensor from the standalone ECUs. and u guys pointed out that if using standard ECU cant get accurate a/f reading unless we buy wideband sensor. my question is if we install those standalone ECUs and just add on an outometer a/f meter the meter will show realtime reading rite?just want to reconfirm what i understand from all the posts here... im just a nooby trying to figure things out... jgn marah ya

 

[GT20v]

Originally posted by Master D@Dec 10 2004, 15:49
Hi Guys,

I'm using the Autometer A/F meter. Based on what I have read here, it should be operating correctly....on idle its bouncing from lean to rich....BUT when I accelerate, the meter will read rich for a couple of seconds the its goes all the way down to lean (while on full throttle)...like 2 red LEDs kinda lean....can anyone tell me whats goin on??

O2 sensor kong? :(
Really lean a/f ratio? :( :( :blink:

SC right????

kinda lean......coz it should show at least 3 ledin rich zone.....
check out in auto meter website for the meaning of each LED.....hehehehhe

 

[algojo9]

tRu mY xperiENCed
mechaNiCAL iS muCh mORE beTTer thaN eleCTROniC meTERscHEERSsss

 

[Waja4646]

open your spark plugs...get links from internet....you can see whether you run lean or rich..........TRADITIONAL WAY DOES IT........juz analyse what already been shown on the website .........all photos shown.....http://www.gnttype.org/techarea/engine/plugs.html

 

[georgett]

to joeker.. something to correct ur post..
wide band signal is from 0.01 to 4.95Vdc, not to 2Vdc.

MOTEC using BOSCH LSU 6066 5 wire wideband.. info only

 

[E3newbie]

So guys,
Verdict please...... is the A/F ratio meter any usefull. I mean the cheaper type lah...

 

[georgett]

hey drft 240sx
I also selling Tech Edge AFR meter. it only cost RM1850 (bosch LSU 7075 5 wire)with digital LED meter, led move very nice like knight rider....
post the pic later...