wideband readings - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 13 Old 09-15-2016, 03:26 PM Thread Starter
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wideband readings

At idle my wideband is pegged at 22.4, when throttle is applied it reads "normal" A/F ratios, but as soon as I let off it pegs back to 22.4 also if I just ease into the throttle it stays at 22.4, I know it's not lean, it's leaving black marks out the tailpipes. Sensor has maybe 50miles on it. Ideas? On3 kit, sensor is in supplied downpipe bung.

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post #2 of 13 Old 09-15-2016, 08:27 PM
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you are blowing black at idle?

and the WB reads lean?

you sure you set the transfer function in your logger/gauge correctly?


89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #3 of 13 Old 09-16-2016, 09:00 AM
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Giant exhaust leak?
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post #4 of 13 Old 09-16-2016, 12:57 PM Thread Starter
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Originally Posted by indy2000 View Post
you are blowing black at idle?

and the WB reads lean?

you sure you set the transfer function in your logger/gauge correctly?
yes. the gauge operated normally one day, not so much the next, and I didn't change anything. Innovative says exhaust leak as well, I could find none.
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post #5 of 13 Old 09-16-2016, 01:06 PM
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Miss fires will read as a lean condition, even though the engine may actually be rich.

1986 Mustang GT T-Top
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post #6 of 13 Old 09-16-2016, 04:17 PM
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yes. the gauge operated normally one day, not so much the next, and I didn't change anything. Innovative says exhaust leak as well, I could find none.


time to measure voltage generated by WB

get the dvom out.

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #7 of 13 Old 09-16-2016, 10:32 PM Thread Starter
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time to measure voltage generated by WB

get the dvom out.
I'm starting to despise using one of these, maybe I'll take up extreme bird watching for a while and take a break from constantly having to run electrical tests on my car, argggg.
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post #8 of 13 Old 09-16-2016, 10:38 PM
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why?

its fun, just like bolting on a turbo

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #9 of 13 Old 09-16-2016, 11:40 PM
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why?

its fun, just like bolting on a turbo
No it's not.. Electrical #### sucks!..lol. Give me a CAD station or mill or lathe or welder but to send me ballistic put a volt meter in my hand.

ks


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post #10 of 13 Old 09-17-2016, 12:14 AM
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all need electricity.

better start learning


89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #11 of 13 Old 09-17-2016, 09:15 AM
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Do you have a cam? Cam overlap can cause a lean reading at idle.
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post #12 of 13 Old 09-17-2016, 09:49 AM Thread Starter
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Do you have a cam? Cam overlap can cause a lean reading at i,dle.
Just a TFS stage1, When I spoke to innovate Motorsports they said that cam overlap was likely not the issue, it worked fine one day, haywire the next.
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post #13 of 13 Old 09-21-2016, 09:21 PM
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which innovate kit is it? i had the older one on my turbo car before, the one with the free air calibration bs, and it was a constant headache. changed to an aem and no more bs. my pro-m efi uses the newer innovate units and so far so good.

also, no matter who's product you're using you should be running as heat sink as they all use oem 02s which simply can't handle the heat soak

DynoTune Product, 037-Heat sink for oxygen sensor in high heat apps - DynoTune, Nitrous systems, Purge kits, Nitrous Bottle heaters and more!

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