Wideband readings
- Thread starter Pwt
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TT/Ameasap
The White Blur
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- Jan 31, 2002
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If on gasoline? 10.8
My logger is showing 14.1 at idle and 16.1 at WOT.
TT/Ameasap
The White Blur
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What wideband do you have? 16.1 is either wrong or your way too lean.
TT/Ameasap
The White Blur
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Also, make sure your PL is set to the right WB setting. Otherwise it will read wrong.
I'm using a F.A.ST dual wideband.
TT/Ameasap
The White Blur
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Is the car popping or missing at WOT?
No but it sounds like my valves are rattling .
TT/Ameasap
The White Blur
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Adjust the fueling for a much richer condition and see if it goes away. Those fast widebands are good units, so you seem to be extremely lean at the moment. Surprised it hasn't went boom yet.
I'm fairly new to using this wideband .How would I adjust the fuel curve?
TT/Ameasap
The White Blur
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A pic of the motor would answer a few questions since your new.
What chip do you have?
Find out your base FP and go from there. Should be around 43 line off and car running.
What chip do you have?
Find out your base FP and go from there. Should be around 43 line off and car running.
NY Twin Turbo
All the good stuff.....Times 2.
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You mean it sounds like marbles being shaken in a coffee can?
NOT GOOD! STOP!
NOT GOOD! STOP!
My fuel pressure at idle is 41. It does have a chip installed but it isn't labeled.I tried to get a user manual from the Fast website but no luck.
Here a pic of the motor.
NY Twin Turbo
All the good stuff.....Times 2.
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You have quite a few mods on that motor. Did you buy it this way?
If so, get to know it quickly. Or the next custom feature it will have is a giant hole in the side.
Start doing searches on tuning help type threads and read up. Along the way, Write in if you have trouble with technical talk.
Until then, if the info is right on your wide-band, there could be a few things going on. Start with raising fuel pressure. I would go to 45 psi with the vac line off. Get it to go rich if you can. This will tell you that there is a middle somewhere. Besides, it's always safer to start rich.
If so, get to know it quickly. Or the next custom feature it will have is a giant hole in the side.
Start doing searches on tuning help type threads and read up. Along the way, Write in if you have trouble with technical talk.
Until then, if the info is right on your wide-band, there could be a few things going on. Start with raising fuel pressure. I would go to 45 psi with the vac line off. Get it to go rich if you can. This will tell you that there is a middle somewhere. Besides, it's always safer to start rich.
TT/Ameasap
The White Blur
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- Jan 31, 2002
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To add what NY said, turn your boost down too.
TT/Ameasap
The White Blur
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Ahhh. it was probably averaging the 2 and giving that 16.1 reading. Good to hear it is not that lean. 13.6 is pretty lean tho. Turn boost down or add fuel to richen it up. Also find out what chi you have. Could be an old one that can potentially blow it up. Eric Marshall at Turbotweak.com has the best chips for these cars period. So I advise to toss the old chip if you cant ID it and go with TT chip. car will run much better and have adjustability for fueling/timing.
forcefed3.8's
Buckeye Bullet
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- May 26, 2002
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Verify you are seeing fuel pressure rise 1lbs of fuel pressure to 1 lbs of boost. Get a TT chip matched to your combo.
