PLX Wideband Guage and Hondata AF not reading same in VTEC

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88crxvtec
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Joined: Sun Mar 03, 2024 10:51 am

PLX Wideband Guage and Hondata AF not reading same in VTEC

Post by 88crxvtec »

I have a PLX wideband gauge that is wired into my Hondata. Today while doing pulls in 4th gear, once the car hits vtec, the wideband on the hondata will read 19.1 AF while the gauge reads 10.0. Since the wideband reads lean, it goes into boost cut. This happens in most gears, but it throws boost cut in the higher gears. This has just started happening. I never had issues before this. When I pull a data log it shows the boost at 5psi and the REVL on. Could it be a grounding issue? It's weird the gauge and Hondata read different only after VTEC kicks in.

Thanks in advance
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Spunkster
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Location: Hondata

Re: PLX Wideband Guage and Hondata AF not reading same in VTEC

Post by Spunkster »

What input are you using for the wideband?
88crxvtec
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Re: PLX Wideband Guage and Hondata AF not reading same in VTEC

Post by 88crxvtec »

D14
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Spunkster
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Re: PLX Wideband Guage and Hondata AF not reading same in VTEC

Post by Spunkster »

Do not use D14 as it cannot see the fill voltage range. Use D10 instead: https://hondata.com/help/smanager/wideb ... b=wideband
Mikoals
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Joined: Mon Mar 11, 2024 6:31 pm

Re: PLX Wideband Guage and Hondata AF not reading same in VTEC

Post by Mikoals »

I can tell from the data log, the boost is set at 5 psi and the REVL is active. Is it possible that there's a difficulty with footing?
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