Wide Band O2 for C950
Thread Starter
Supreme Member
Joined: Mar 2002
Posts: 1,654
Likes: 2
From: Lower Salford, PA
Car: 1987 Camaro Z-28
Engine: 6.3L Victor EFI
Transmission: Tremec TKO 600
Axle/Gears: Moser 9"/4.11 Trac-Lok
Supreme Member
Joined: Mar 2001
Posts: 3,306
Likes: 78
From: Fl
Car: 5.3L turbo 2800lbs RWD
Engine: Prefer 3L Iron & 5.3L Aluminum
Transmission: 4l80e
Axle/Gears: 3.512
hmm 8x8 WB A/F Ratio Settings...
There goes my auto tuner idea
oh well. thanks rick! looks like that will be my next upgrade.
There goes my auto tuner idea
oh well. thanks rick! looks like that will be my next upgrade.
Supreme Member
Joined: Mar 2001
Posts: 3,306
Likes: 78
From: Fl
Car: 5.3L turbo 2800lbs RWD
Engine: Prefer 3L Iron & 5.3L Aluminum
Transmission: 4l80e
Axle/Gears: 3.512
TTT
also, rick or someone, do you still have to have a base fuel map so the computer knows "sort of" how much fuel to inject before trimming based on the wideband?
also, rick or someone, do you still have to have a base fuel map so the computer knows "sort of" how much fuel to inject before trimming based on the wideband?
Junior Member
Joined: Mar 2002
Posts: 30
Likes: 0
A wideband, with anyone's system, never replaces tuing the base fuel table. It is no different from a narrowband O2 sensor except you can run closed loop at different A/F ratios and you can tell exactly what is going on at WOT.
This is a basic principle of EFI that seems to have a large misconseption by many people.
When it is warming up open loop, or at WOT (if not closed loop), or when operating in a transient condition, the fuel table or map MUST be right or the vehicle can not run well.
A wideband is not a replacement for proper tuning, it just makes it MUCH easier, braindead to anyone that is an experienced tuner.
This is a basic principle of EFI that seems to have a large misconseption by many people.
When it is warming up open loop, or at WOT (if not closed loop), or when operating in a transient condition, the fuel table or map MUST be right or the vehicle can not run well.
A wideband is not a replacement for proper tuning, it just makes it MUCH easier, braindead to anyone that is an experienced tuner.
