mpvi2+wideband when?????
12-31-2018, 12:42 AM
#43
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so if i'm tuning a c5 would i need a gauge and sensor or will the mpvi2 get the wideband info from the computer?anyone have a pic of how they wired the serial cable to the mpvi2?
12-31-2018, 06:48 AM
#44
https://www.ftdichip.com/FTDrivers.htm
Last edited by dlandsvZ28; 12-31-2018 at 08:00 AM.
12-31-2018, 09:01 AM
#45
When shopping for a wideband, you need to read the installation instructions first for each model to determine where the data stream comes from in order to determine where to attach your cables which ultimately connect either to the MVPI PRO interface or to an open USB port on your laptop (if you choose the method explained in this thread). Or whether you need a gauge for not.
This thread explains how to use the MVPI2 interface in conjunction with a USB to serial cable adapter and db9 pin cable in order to datalog with the MVPI2 scanner while at the same time merge the data stream from the ODB II port with a separate data stream from your wideband. This means you don't have to wait for or buy an MVPI2 Pro wideband data logging interface.
If you choose to use the method explained in this thread, the HP Tuners MVPI scanning software merges the two data streams and presents the data to you thru the HP scanner program screens, charts, and graphs.
As for whether one can receive a wideband data stream from a narrow band sensor on your C5 via the PCM and OBD-II port, the short answer is no. In order to receive a wideband data stream for data logging purposes, you have to install a wideband sensor along with the wideband controller. Your C5 has narrow band sensors, so you need at least one wideband sensor along with a compatible controller.
This link below explains the differences between narrowband and wideband. Note, the latest Bosch sensor is now a Bosch LSU 4.9 sensor instead of the earlier 4.2. The two are not interchangeable. So when shopping for a wideband, make sure to get a wideband controller that is compatible with the 4.9 or delivers with a 4.9 sensor. For example, the AEM 30-4100 wideband controller cable for the 4.2 will not connect to the Bosch LSU 4.9 sensor. So for me, if i want to to use the 4.9 sensor, I need to upgrade to a later model or different mfg.
https://www.autometer.com/resources/...faq_view/id/13
The devil is in all of the details, there are no short answers.
hth
Last edited by dlandsvZ28; 12-31-2018 at 09:03 AM. Reason: edit content
12-31-2018, 10:01 AM
#46
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This thread explains how to use the MVPI2 interface in conjunction with a USB to serial cable adapter and db9 pin cable in order to datalog with the MVPI2 scanner while at the same time merge the data stream from the ODB II port with a separate data stream from your wideband. This means you don't have to wait for or buy an MVPI2 Pro wideband data logging interface.
hth
i'm new to tuning and i'm going to have a friend try and teach me the basics of tuning.it sounds like if i plug the mpvi2 into the obd2 port and wire a serial cable to the mpvi2 then use a usb-serial adapter to plug into the laptop i can get a wideband graph on the scanner program without needing a aftermarket gauge and sensor?
12-31-2018, 11:32 AM
#47
thanks for the response.
i'm new to tuning and i'm going to have a friend try and teach me the basics of tuning.it sounds like if i plug the mpvi2 into the obd2 port and wire a serial cable to the mpvi2 then use a usb-serial adapter to plug into the laptop i can get a wideband graph on the scanner program without needing a aftermarket gauge and sensor?
i'm new to tuning and i'm going to have a friend try and teach me the basics of tuning.it sounds like if i plug the mpvi2 into the obd2 port and wire a serial cable to the mpvi2 then use a usb-serial adapter to plug into the laptop i can get a wideband graph on the scanner program without needing a aftermarket gauge and sensor?
https://www.autometer.com/resources/...faq_view/id/13
As explained in a earlier post in this thread, the pathway below is how to get data from a wideband sensor into your laptop so the HP scanning and logging program can interpret and display the data so you can use it to tune your car.
Pathway wideband: Wideband sensor > controller/gauge> db 9 cable>USB to serial cable adapter>USB port on laptop > HP Scanning and logging program screens.
If on the other hand, all you want to do is scan and log your car with the HP Scanner and just read the narrowband data, then no, you don't need to purchase a wideband. The data that displays from the scanning software will be narrowband, not wideband.
Perhaps you should download the software and open the scanner and open the sample log and watch as it displays the short term and long term narrowband data stream (O2 narrow band sensors on your C5).
If you decide to purchase a wideband and install it in your C5, then you have two options if you want to be able to read the data that can be retrieved from the wideband sensor and controller.
1)You can buy the HP MVPI 2 Pro interface module and connect it your wideband and use it to datalog wideband data streams.
2) Or you can used the method explained in this thread that bypasses the MVPI2 interface module via a USB port on your laptop. Note that this method has far less functionality than the PRO module. However, sometimes less is better if all you need is wideband data.
HTH
12-31-2018, 03:22 PM
#48
thanks for the response.
i'm new to tuning and i'm going to have a friend try and teach me the basics of tuning.it sounds like if i plug the mpvi2 into the obd2 port and wire a serial cable to the mpvi2 then use a usb-serial adapter to plug into the laptop i can get a wideband graph on the scanner program without needing a aftermarket gauge and sensor?
i'm new to tuning and i'm going to have a friend try and teach me the basics of tuning.it sounds like if i plug the mpvi2 into the obd2 port and wire a serial cable to the mpvi2 then use a usb-serial adapter to plug into the laptop i can get a wideband graph on the scanner program without needing a aftermarket gauge and sensor?
https://ls1tech.com/forums/pcm-diagn...-question.html
12-31-2018, 05:58 PM
#49
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No - you need to read the entire thread again, especially the link below that explains the differences between a narrowband and a wideband. Since you haven't stated that you already have a wideband sensor or controller, then you need to get one based on your question. Whether you need a gauge or not depends on the wideband mfg/model you choose.
https://www.autometer.com/resources/...faq_view/id/13
As explained in a earlier post in this thread, the pathway below is how to get data from a wideband sensor into your laptop so the HP scanning and logging program can interpret and display the data so you can use it to tune your car.
Pathway wideband: Wideband sensor > controller/gauge> db 9 cable>USB to serial cable adapter>USB port on laptop > HP Scanning and logging program screens.
If on the other hand, all you want to do is scan and log your car with the HP Scanner and just read the narrowband data, then no, you don't need to purchase a wideband. The data that displays from the scanning software will be narrowband, not wideband.
Perhaps you should download the software and open the scanner and open the sample log and watch as it displays the short term and long term narrowband data stream (O2 narrow band sensors on your C5).
If you decide to purchase a wideband and install it in your C5, then you have two options if you want to be able to read the data that can be retrieved from the wideband sensor and controller.
1)You can buy the HP MVPI 2 Pro interface module and connect it your wideband and use it to datalog wideband data streams.
2) Or you can used the method explained in this thread that bypasses the MVPI2 interface module via a USB port on your laptop. Note that this method has far less functionality than the PRO module. However, sometimes less is better if all you need is wideband data.
HTH
https://www.autometer.com/resources/...faq_view/id/13
As explained in a earlier post in this thread, the pathway below is how to get data from a wideband sensor into your laptop so the HP scanning and logging program can interpret and display the data so you can use it to tune your car.
Pathway wideband: Wideband sensor > controller/gauge> db 9 cable>USB to serial cable adapter>USB port on laptop > HP Scanning and logging program screens.
If on the other hand, all you want to do is scan and log your car with the HP Scanner and just read the narrowband data, then no, you don't need to purchase a wideband. The data that displays from the scanning software will be narrowband, not wideband.
Perhaps you should download the software and open the scanner and open the sample log and watch as it displays the short term and long term narrowband data stream (O2 narrow band sensors on your C5).
If you decide to purchase a wideband and install it in your C5, then you have two options if you want to be able to read the data that can be retrieved from the wideband sensor and controller.
1)You can buy the HP MVPI 2 Pro interface module and connect it your wideband and use it to datalog wideband data streams.
2) Or you can used the method explained in this thread that bypasses the MVPI2 interface module via a USB port on your laptop. Note that this method has far less functionality than the PRO module. However, sometimes less is better if all you need is wideband data.
HTH
so from the pic i would wire pin2 from the serial cable to the blue serial output on the gauge and pin5 from the cable goes to ground.would you connect the white 0-5v wire to anything?
12-31-2018, 11:04 PM
#50
The white wire is for an analog signal. Some older versions only accepted an analog signal. EFI Live V1 for example. Tape or shrink wrap it.
https://www.aemelectronics.com/files...GO%20Gauge.pdf
https://www.aemelectronics.com/files...GO%20Gauge.pdf
01-02-2019, 11:27 AM
#51
We keep in stock widebands with usb to serial adapters that work with hpt. We use them everyday and tried alot before finding the combination that we been using now for a long time. We have using serial widebands for 10+ years with efi live and then with hpt when it was released. It works great with the right hardware.
03-13-2019, 12:36 PM
#52
If all you guys are wanting to do is log wideband then to hell with that pro version. The serial port works awesome and its super simple. Just get you a serial to usb adapter and plug it in to a usb on your laptop and HP Tuners will find the data stream and log it. You dont have to setup anything. Of course you need to select the wideband in the serial input of your scanner. HP Tuners already has it all configured for most of the popular widebands.
I was using my ac pressure switch and trying to get the right offset so my actual afr was matching what hp tuners was logging. If you are trying to do that then you need to throw that **** in the bushes. The serial port deal rocks!
I was using my ac pressure switch and trying to get the right offset so my actual afr was matching what hp tuners was logging. If you are trying to do that then you need to throw that **** in the bushes. The serial port deal rocks!
Edit, I think I found my answer. I didnt see the pic in this thread of the harness somebody made. So then those 2 leads that were cut just go to the wideband, the other into the laptop?
03-13-2019, 07:23 PM
#53
Bump, I know its old. So I just got the MPVI2 and am now learning about logging afr. Whoops. I dont really want to pay another $250 to log afr. Ive read about this technique but more detail on how its wired would help me a bunch. Ive got an AEM wideband and I know it has the sources for logging but not to sure on what Im doing. Am I cutting one end of the serial and wiring it to the wideband?
Edit, I think I found my answer. I didnt see the pic in this thread of the harness somebody made. So then those 2 leads that were cut just go to the wideband, the other into the laptop?
Edit, I think I found my answer. I didnt see the pic in this thread of the harness somebody made. So then those 2 leads that were cut just go to the wideband, the other into the laptop?
09-12-2021, 07:14 PM
#56
No look at post #49 it has a picture of the wiring for the gauge/controller red goes to switched ign. black goes to ground and white is for analog signal (ie older MPVI pro 1 box) and blue is the serial data line which is what this thread is pretty much all about. I have the older MPVI pro1 so I don't use the blue wire, now if I wanted to log the serial data data I could purchase the 2 pieces of hardware mentioned in this thread and go that way. I really don't know why HPT decided to go the way they did with the MPVI boxes, but they did so now you have to log the serial data unless you purchase their expensive interface..
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G Atsma (09-13-2021)
09-13-2021, 07:53 AM
#57
No look at post #49 it has a picture of the wiring for the gauge/controller red goes to switched ign. black goes to ground and white is for analog signal (ie older MPVI pro 1 box) and blue is the serial data line which is what this thread is pretty much all about. I have the older MPVI pro1 so I don't use the blue wire, now if I wanted to log the serial data data I could purchase the 2 pieces of hardware mentioned in this thread and go that way. I really don't know why HPT decided to go the way they did with the MPVI boxes, but they did so now you have to log the serial data unless you purchase their expensive interface..