I’m currently troubleshooting an issue with my Honda Civic with a D16A6 engine and an ECUMASTER setup. Despite successfully obtaining speed readings from the Vehicle Speed Sensor (VSS), I’ve encountered persistent spikes in the value when the speed exceeds 50 km/h. Despite numerous attempts to adjus…

Hi, What kind of spikes are you having? I`m also having a spikes problem just from when i have installed EMU Black (more than 2 years). Same as you i have factory 3 wire VSS sensor. In my case spikes are not related to speed, they can occur are low and high speeds and the spike can be negative a…

Yes, I had a spike like yours, but mine was even worse. But yesterday I set the divider to 2 and the spike are nearly totally gone. I tried the car on a jack, and now I need to test it on the road. [EMU_BLACK_GylibeTrH4] this is my setup

Hi, i am useing EMU black on an Audi TT with 1.8T engine for 3 years now and have the same problem. In my case the sensor is connected to the instrument cluster and the IC is generating the frequency signal for the other ECUs. I use following settings: [image] Till now i thought i have a bad w…

is strange that you are using pull down normally most signals generated are to ground and pull up would be required

To this line several ECUs are connected and i think it is enough if just one is doing the pullup…and it seems an other ECU is doing the pullup here. I think for a simple reading here the setting doesn’t matter, but u are right…probably it is better to set it to none or pullup. Will try this.

I played a bit with my settings: pullup, pulldown, none: doenst make any difference; identical signal+quality; issue still present increased the freq devider to 8: issue still present

I have swapped the vss signal wire to the FlexFuel input and selected “Sensor at FlexFuel input” in the options, no other changes. That fully fixed the problem. Tested on ~ 100km distance and not a single spike. [obraz_2024-05-09_204415596] I have also tested the pull up,down, none (using FlexFue…

OK i have checked few things and here are my findings: Changing the pull-up/down/none is not working on the FlexFuel input. It has 10k pull-up no mater what we choose in the settings. Is this intentional or my ecu is broken? If intentional then the pull-up options should be grayed out when FlexF…

Do you know from which Honda engine series that VSS is, is it from the h series?

Its from F series F23Z5 to be specific. Accord 98-02 EU.

VSS Sensor Spikes on Honda Civic

EMU BLACK / CLASSIC

bruce_lee July 16, 2024, 2:54pm 13

You have my map in this topic, but it is d16 on e85 with smart coils and it is drag car, so don’t expect to be good for b16.

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VSS Sensor Spikes on Honda Civic

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