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HELP...Fuel (non) economy/ECU re-program? 


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Posted: Tue Jul 05, 2005 12:00 am 
Oompa Loompa

Age: 38

Posts: 39

Joined: 10th Nov 2004

Ride: Falcon

Location: Sunshine Coast
QLD, Australia

The temp seams high if it's up at the other end of the normal scale?

Has it had a head gasket replaced recently?



AU3 XR8 220 Sedan
AU3 XLS w/Tickford 6

Posted: Tue Jul 05, 2005 9:21 pm 
Getting Side Ways
User avatar

Age: 35

Posts: 516

Joined: 20th Dec 2004

Gallery: 4 images

Ride: EL Manual

Location: S.E. Melbourne
VIC, Australia

W0rp3D wrote:
well the cheap little kit i brought from jaycar said in the instructions that you need to calibrate it for it to be accurate, i know the $80 kits you dont need to and the autometer gauge i have dosnt need to either.

That's still a narrow band air - fuel ratio meter. It is only accurate at 14.7:1 air fuel ratio, that's a limitation of the sensor not the meter. You can "sort of" guess the air fuel ratio away from 14.7:1 with these but very inaccurate. Really they only give a Rich - Stoch - Lean condition. Even if you could 'calibrate' it the sensor will still drift. I bet the ppl who designed your $80 one just didn't want to s**t you that calibrating would make it accurate.

Wide band A/F ratio meters are a different story with their own dedicated controller and sensor. Upwards from $400. They are accurate.



Manual EL Gli.
Mods: Crow Stg3, Chiptorque Dynotune. Lukey Exhaust. DBA slotted rotors, EBC Pads. Whiteline Low Susp. EL GT Swaybars, ROH Envy 17 x235 wheels. Vehicle Datalogger Display V2.0,

Posted: Wed Jul 06, 2005 12:32 am 
Getting Side Ways
User avatar

Posts: 1960

Joined: 6th Nov 2004

Gallery: 22 images

Power: 315 rwkw

Location: Under the flight path of incoming packpackers
NSW, Australia

Yeah autometer A/R guages are only to give a rough idea, but all he is saying is you get a rough idea... but you'd be suprised what can be done with one
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