i want to hook up my stock tach.
wheres the output pin (on the board) because i need to build circutry to lower the signal for my VW tach. (i have the circutry diagram, it just doesnt tell me the pin i need
thanks for the help!
tacho output pin
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
-
rocklizzard91
- MegaSquirt Newbie
- Posts: 20
- Joined: Tue Jan 12, 2010 9:19 pm
tacho output pin
i cant find where its at for the life of me!
i want to hook up my stock tach.
wheres the output pin (on the board) because i need to build circutry to lower the signal for my VW tach. (i have the circutry diagram, it just doesnt tell me the pin i need
thanks for the help!
i want to hook up my stock tach.
wheres the output pin (on the board) because i need to build circutry to lower the signal for my VW tach. (i have the circutry diagram, it just doesnt tell me the pin i need
thanks for the help!
-
Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: tacho output pin
The answer depends on what main board, processor, and code version you have.
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rocklizzard91
- MegaSquirt Newbie
- Posts: 20
- Joined: Tue Jan 12, 2010 9:19 pm
Re: tacho output pin
ms-1Matt Cramer wrote:The answer depends on what main board, processor, and code version you have.
v3.0 board
not sure what code
where do i find that and ill post it too-
Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: tacho output pin
If you don't know, ask the ECU. To ask it what firmware it has, you'll need the program portcheck.exe, which comes with most MegaTune versions, including the one on the DIYAutoTune.com website. You'll find it in the MegaTune2.25 folder. If you don't have a copy, download it here:
http://www.DIYAutoTune.com/downloads/tu ... tCheck.zip
Power up the Megasquirt and connect it to your PC. You do not need to open the case and should not put the boot jumper in place for this test. Close MegaTune if it's running, and run the portcheck.exe program. When this program starts, it will scan the available COM ports.
If the port it's scanning is not connected to a working Megasquirt, or it's on the wrong speed, it'll say "No connection made." If it's on the right port and right speed, it will give you the version of the Megasquirt firmware that's on the Megasquirt. Note that some Megasquirt firmware versions will look like earlier versions with this test - for example, 029V identifies it as 029Q. This is for backwards compatibility.
If you get a port where it replies with "S" or something else that doesn't look like a firmware version, this port is probably a fake COM port that echos back everything that's typed.
http://www.DIYAutoTune.com/downloads/tu ... tCheck.zip
Power up the Megasquirt and connect it to your PC. You do not need to open the case and should not put the boot jumper in place for this test. Close MegaTune if it's running, and run the portcheck.exe program. When this program starts, it will scan the available COM ports.
If the port it's scanning is not connected to a working Megasquirt, or it's on the wrong speed, it'll say "No connection made." If it's on the right port and right speed, it will give you the version of the Megasquirt firmware that's on the Megasquirt. Note that some Megasquirt firmware versions will look like earlier versions with this test - for example, 029V identifies it as 029Q. This is for backwards compatibility.
If you get a port where it replies with "S" or something else that doesn't look like a firmware version, this port is probably a fake COM port that echos back everything that's typed.