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AF in display not reading wideband correctly

Posted: Mon Sep 01, 2025 1:02 pm
by 365motorsports
what would cause the wide reading in display not to read correctly? its only showing 1 to 2 afr. wideband gauge reads fine. digital wideband input reads what the wideband is displaying. AF under closed loop is not reading correctly in the display

Re: AF in display not reading wideband correctly

Posted: Mon Sep 01, 2025 1:35 pm
by 365motorsports
also s300 is not reading the map sensor correctly either. i am usinig a omni 3 bar custom scaler

Re: AF in display not reading wideband correctly

Posted: Tue Sep 02, 2025 8:07 am
by 365motorsports
I fixed the diaplay. Still have a issue s300 doesn’t recognize the map sensor during craning but Koeo using a mity vac the tracer moves on the map

Re: AF in display not reading wideband correctly

Posted: Wed Sep 03, 2025 5:58 pm
by 365motorsports
3 days no reply?

Re: AF in display not reading wideband correctly

Posted: Thu Sep 04, 2025 9:52 am
by Spunkster
You should try your ECU in a known working vehicle as it should read the MAP sensor without running with the ignition on. There may be a wiring issue in your vehicle.

Re: AF in display not reading wideband correctly

Posted: Thu Sep 04, 2025 10:34 am
by 365motorsports
There isn’t a wiring issue. I have 5v at the plug. With the koeo i can pull vacuum on the map sensor and the tracer moves. To -19 to 22” when cranking the tracer never moves. You have to hold foot on the throttle to get it to idle but it fouls the plugs out bc it’s not registering the map sensor volt. Didn’t have an issue with the other tuning setup in the car. So the wiring harness is good. Same harness different engine. I blew the other engine up

Re: AF in display not reading wideband correctly

Posted: Thu Sep 04, 2025 12:39 pm
by Spunkster
What does it do when you try the ECU in a known working vehicle?

Have you tried using the OEM MAP sensor?

Re: AF in display not reading wideband correctly

Posted: Thu Sep 04, 2025 5:24 pm
by 365motorsports
I don’t have another car to test it in. Factory map sensor does the something. My other cars are flashpro. On a engine simulator everything test fine in the software. Bought and registered this s300 before xenocron shut down. Never installed it in my car until I started this thread. Not sure what else to do. I don’t tune obd1 cars anymore at the shop. All the rest are Kpro, flashpro, stand-alone ecus or other flash based tuning. All the manual tests show on the ecu with the software shows everything is good. Did you take a look at the datalog?

Re: AF in display not reading wideband correctly

Posted: Fri Sep 05, 2025 12:08 pm
by Spunkster
Try to find someone local to test in their vehicle as this will tell you immediately if it is your vehicle or the ECU.

Re: AF in display not reading wideband correctly

Posted: Sun Sep 14, 2025 7:44 am
by 365motorsports
I found an issue the exhaust cam gear slipped to -4 on the skunk 2 pro 1 exhaust cam. I fixed that yesterday. I tried to start it and now the s300v3 wont connect to smanager. Smanager isn’t recognizing the usb. I tried the other cable from my flashpro same thing. Tried reinstalling smanager. Still won’t connect. Only 2 leds are lit on the board. The red led flickers then goes out never comes back on.

Re: AF in display not reading wideband correctly

Posted: Sun Sep 14, 2025 7:50 am
by 365motorsports
Here is a pic

Re: AF in display not reading wideband correctly

Posted: Mon Sep 15, 2025 10:15 am
by Spunkster
Check grounds in the engine bay then reboot the laptop and try again.

Re: AF in display not reading wideband correctly

Posted: Mon Sep 15, 2025 10:22 am
by 365motorsports
Nothing wrong with the ground. Nothing changed with the one on the thermostat housing. Tried a different laptop same issue. My old tuning hardware connects to the old software. Ostrich with hulog.

Re: AF in display not reading wideband correctly

Posted: Mon Sep 15, 2025 10:23 am
by 365motorsports
All I did was moved the cam gears to the correct degree

Re: AF in display not reading wideband correctly

Posted: Mon Sep 15, 2025 11:41 am
by Spunkster
That will not change how the s300 connects to the software.