Wideband serial to usb disappears when scanning

[shakenfake]

Have you checked device manager? If you download Putty on your computer you can make sure that you are receiving a signal when you are hooked up as well

[marksrig]

I finally got fed up with the serial. I would try different ports, restart, etc. nothing was consistent.
I ended up with the AEM X series with OBD. Much less issues.
if you have an OBD, its worth a look

[CAT3N4]

Well it would be nice if AEM OBD worked for pre CAN, since I have a 99' I have to rollback the windows update or something.

[R Horn]

Well it would be nice if AEM OBD worked for pre CAN, since I have a 99' I have to rollback the windows update or something.

dr.mike is working on an adapter that takes the AEMnet CAN and will put that data onto the pre-CAN data streams. The J1850-VPW is currently under test.

That thread is located here
https://forum.hptuners.com/showthrea...y-takers/page5

[sbarisic]

I have the same issue with my AEM wideband. Sometimes it works, sometimes it does not. Totally random. It would be nice if we could configure a custom data channel to always look for a specific COM port, same for the MPVI interface. I have noticed if i plug the wideband out and then in again and try to connect to the vehicle, it will not detect the MPVI2+ interface first time. Then it will detect it again.

[shakenfake]

I believe that there is a way to configure it to look for a specific COM port but I cannot remember.
I do not have this issue with finding the wideband. Have you repolled for parameters recently? Followed my writeup?

[GreenMachine5.3]

Excellent Topic. I purchased the Daytona Sensor WEGO IV unit, thinking it would be perfect for street tuning and I am having major issues getting my PID to work. Done everything I can think of and NOTHING is working. PID vanishes when starting to scan. Reboot > nothing, Repoll > nothing. I spent well over $500 for this POS....

[weavingi]

I actually ended up figuring out the issue a little bit after I made this post. Not sure why I didn't get thread updates but anyways...

I had to delete the file for the truck and then repoll for parameters and do the whole nine yards again. I actually did a write up on how to do this on performancetrucks.net
Going to link it down below but I have not had an issue since.

https://www.performancetrucks.net/fo...tuners-558840/


Also this is something that I highly doubt HPTuners is working on as they want you to use their pro software. Not throwing shade at all because that is easily the best solution but this one works just as well. Just need to work it out a bit. Check out the link, will work 100%. If you need help PM me

As described above - it works for me: delete the file in folder "documents>hp tuners>VCM scanner >vehicles", then plug your HPTuners MPV obdii interface and USB into your laptop, "connect to vehicle", "repoll for supported parameters" (under "vehicle" at top of VCM scanner) and then "start scanning". This is with windows 10 and VCM scanner V5.0.4. This is a frustrating work around because my experience is I have to jump thru this procedure any time I make changes to my channel selection.

[shakenfake]

I would not be surprised if you had to repoll for parameters and try and rework the entire setup. In the event I get forced onto Windows 11 I will probably just buy the Pro hub.

[54inches]

having the same issue, Restarting doesn't help, powering up the computer with the ports connected doesn't help, checked the drivers, comm port is showing up in device manager, restarting the scanner doesn't help, and tried the BETA as well with no luck. This seems to be a common issue, is HPTuners working on any sort of solution?!

Same.

Before you connect and start the log make sure the wideband is reporting and not "warming up". When ignition is cycled and wideband warms up it drops serial connection for whatever reason. That's why it disappears from the channel list.

This is an interesting point. I am pretty sure I have checked this, but I am putting it on my list.

I actually ended up figuring out the issue a little bit after I made this post. Not sure why I didn't get thread updates but anyways...

I had to delete the file for the truck and then repoll for parameters and do the whole nine yards again. I actually did a write up on how to do this on performancetrucks.net
Going to link it down below but I have not had an issue since.

https://www.performancetrucks.net/fo...tuners-558840/

Also this is something that I highly doubt HPTuners is working on as they want you to use their pro software. Not throwing shade at all because that is easily the best solution but this one works just as well. Just need to work it out a bit. Check out the link, will work 100%. If you need help PM me

SO, are you deleting those files and repolling after every restart of the computer? I am trying to create a step by step troubleshooting document for this issue.

So one thing I figured out is if I'm logging and I stop the log, turn the truck off (AEM is tied to the oem O2 sensor fuse) but leave my computer running, Once I restart I have to restart the logger as well or it will disappear.

But at the same time since I started using a USB hub and plugging both the MPVI and the AEM into it, there has been times I forgot to restart the scanner/logger and it still worked just fine. Again that little bonus only happened after I combined everything onto a 4 port USB hub....

Dunno what or if than means anything, but just sharing my experience with the same issue that hasn't given me any more fits in almost 3 months now. And I log almost daily.

Great point, but I have tried using a Y-splitter and plugging in separately to no avail.

I ditched my serial WB. I got the AEM X series that goes thru the OBD. No problems

I am almost there.

OK Update: I am using the AEM 4110 Finally some progress, After searching and trying watching videos. Make sure the interface is fully plugged in the obd port. On my labtop I plug in the serial to usb on the leftside usb, and use the hpt on the rightside usb on the labtop. Initally First I start the car, let it warm up and connect, I had to do this a couple of times, but seemed to work. Forgot to mention also repolled it too. Still working today.

Did that too.

Attachment 116579

Quadruple checking that tonight.

As described above - it works for me: delete the file in folder "documents>hp tuners>VCM scanner >vehicles", then plug your HPTuners MPV obdii interface and USB into your laptop, "connect to vehicle", "repoll for supported parameters" (under "vehicle" at top of VCM scanner) and then "start scanning". This is with windows 10 and VCM scanner V5.0.4. This is a frustrating work around because my experience is I have to jump thru this procedure any time I make changes to my channel selection.

*Make sure the Wideband is tied into an accessory fuse per instructions.
1. Delete the file in folder "documents>hp tuners>VCM scanner >vehicles".
2. Plug your HPTuners MPV obdii interface and USB into your laptop.
3. Turn on vehicle.
4. Wait for Wideband to "boot up"
5.Open Scanner.
6. Connect to vehicle.
7. Repoll for supported parameters.
8. Scan.


Thoughts or additions?

[shakenfake]

@54inches No I am not doing that after every restart. I only ever did it once.

[54inches]

Thank you sir!

[sublevel]

Autometer cobalt wideband rs232 serial connection
I am trying to get my wideband data from my Autometer Colbalt series model 6197 that?s the 0-5v version with the 4.9lsu Bosch sensor to work on my RS232 port in VCM scanner version 4.10.7 with a MPVI2

I have a dedicated RS232 port on a HP EliteBook 8570P running windows 7-32bit

The comport is receiving data verified with CheeseLogger (so I know that Pins 2&5 are correct) as well as the setting for the port as it?s showing the AFR

I just added a channel for a Serial Port - AEM - AEM AFR - the channel shows up until I connect to the vehicle (tried a couple of other bands also, no luck)

Is there something specific I need to do for this particular wideband or do I need to buy Pro features?


The next day I tried the following:

Tried a windows 10 64bit laptop with an older version of HPT (the one that came with my MPVI2 v4.8.x I believe)

Used a usb 2.0 to serial cable with a FTDI chipset

Both laptops and that cable showed AFR data in cheeselogger

But HPT and the AEM AFR channel just vanishes

I have also turned the bluetooth off on EliteBook, tried having the truck running, serial cable in first, re syncing, deleting the data in vehicle folder, added and removed the channel and no luck

Is wideband serial data still supported in HPT or do I need to buy the pro suite?

Today I?m Expecting another usb 2.0 to serial cable with the Prolofic chipset (specifically the one linked directly by HP Tuners)

I?ve also submitted a support ticket to them

Thanks in advance

[Allen Vos]

Autometer cobalt wideband rs232 serial connection
I am trying to get my wideband data from my Autometer Colbalt series model 6197 that?s the 0-5v version with the 4.9lsu Bosch sensor to work on my RS232 port in VCM scanner version 4.10.7 with a MPVI2

I have a dedicated RS232 port on a HP EliteBook 8570P running windows 7-32bit

The comport is receiving data verified with CheeseLogger (so I know that Pins 2&5 are correct) as well as the setting for the port as it?s showing the AFR

I just added a channel for a Serial Port - AEM - AEM AFR - the channel shows up until I connect to the vehicle (tried a couple of other bands also, no luck)

Is there something specific I need to do for this particular wideband or do I need to buy Pro features?


The next day I tried the following:

Tried a windows 10 64bit laptop with an older version of HPT (the one that came with my MPVI2 v4.8.x I believe)

Used a usb 2.0 to serial cable with a FTDI chipset

Both laptops and that cable showed AFR data in cheeselogger

But HPT and the AEM AFR channel just vanishes

I have also turned the bluetooth off on EliteBook, tried having the truck running, serial cable in first, re syncing, deleting the data in vehicle folder, added and removed the channel and no luck

Is wideband serial data still supported in HPT or do I need to buy the pro suite?

Today I?m Expecting another usb 2.0 to serial cable with the Prolofic chipset (specifically the one linked directly by HP Tuners)

I?ve also submitted a support ticket to them

Thanks in advance

I struggled with this for a while as well. Did everything you had listed.

Yes HPT supports serial wideband.

Try starting your vehicle and making sure the wideband is warmed up .

Have your HPT cable and your wideband serial cable plugged into your laptop.

Restart windows on your laptop and see if this works, then go into VCM scanner and see if you have a wideband reading.

That's all it took for me, just a restart with everything plugged in and the car running and the wideband works.

[sublevel]

That did not work

[epfatboy]

misery loves company....

My little addition is:

I get my channels to stay and log AFR on RARE occations.. not sure what sequence(s) in my Channel Dance is working for me but I'll start going thru this and let you know as I'd really like a little more consistancy!

I should also note I rarely do not see the VCM Scanner, it opens most of the time... Just the serial port channels drop

So I'll start looking at this list (and the linked list) more in depth later today.

I'll start with deleting the vehicle files and repolling.... That seems the easiest.

[epfatboy]

Deleted the files in Vehicles.
Repolled (after the automatic repoll)

No Dice.

Device manager see's both the scanner and the afr cables, all looks normal, and it picks them up dynamically when I un-plug/plug them in.

Picked up a new cable and will check it out. I have also removed the USB Hub from the equation and plugged both USB cables into the laptop. Still no dice.

Gonna ask this....
The serial connection has worked and inputs the AFR in the past... does this mean I can eliminate incorrect wiring of the gauge for serial input? One thing I did was tie the bare wire and ground together. Wasn't sure about the bare wire but followed the instructions I had and like I said has worked.

[epfatboy]

Okay....

Validated wiring AGAIN, it's correct
Bought a different 232/usb cable, drivers are up to date and still no makin it happen...

Went in and grabbed my older IBM ThinkPad and it works....

Checked out device driver on the think pad, the only diff is my newer HP laptop has 2 bluetooth ports open. I saw one guy deleted (or more likely disabled) those. I might try that next.

[Speed39]

I am having this same problem.
Mine has always worked, now does not. I have deleted the channel and readded several times with zero luck. The channel shows up until i hit record, then it go away.
This is quite frustrating.

[epfatboy]

Okay....

Validated wiring AGAIN, it's correct
Bought a different 232/usb cable, drivers are up to date and still no makin it happen...

Went in and grabbed my older IBM ThinkPad and it works....

Checked out device driver on the think pad, the only diff is my newer HP laptop has 2 bluetooth ports open. I saw one guy deleted (or more likely disabled) those. I might try that next.

OKAY I got it working!

HP laptop is Windows 11 and has 2 bluetooth ports defined in the device manager, I DISABLED both of them and the wideband readings are coming thru.

SETTINGS -> DEVICE MANAGER -> Ports (COM & LPT)
Standard serial over Bluetooth Link (COM x and z)

Right click and DISABLE both.

I had also deleted the Vehicle info and rescanned prior to doing this.


Speed39, same problem for me and frustrating is kind, can't imagine where I'd be if I wasn't a IT professional who didn't mind breaking shit.

Thanks to Shaken and 54 for giving me the clues.