OBD 0 Port?
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Needs to be About 20% Cooler
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From: San Bernardino, CA, USA
Could this be a OBD port or other FI data-getting port like a serial port?
BTW, this my own site and i know it's kinda cheesey but it's free
http://jcords.tripod.com/mysite/id4.html
91 Civic sedan LX PM5 ECU
BTW, this my own site and i know it's kinda cheesey but it's free
http://jcords.tripod.com/mysite/id4.html
91 Civic sedan LX PM5 ECU
Thread Starter
Needs to be About 20% Cooler
iTrader: (1)
Joined: Jun 2004
Posts: 1,878
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From: San Bernardino, CA, USA
Is that what it is; a serial port?
Could I get some more info like baud rate if it is a serial port, pinnouts, protacalls, etc...
Could I get some more info like baud rate if it is a serial port, pinnouts, protacalls, etc...
Serial Adapter | ecu side
(USB or Max233)
Side
tx- | -> Pin4 (rx)
rx- | -> pin2 (tx)
+5v |-> pin3 (not used if using usb adapter)
gnd- | -> pin1 (gnd)
|-> pin5(not used)
One 28 pin socket
One 4 pins "jumper" connector
Couple of (E)Eproms
Either a TTL to RS-232 or TTL to USB converter.
4 conductors wire
Max233 kit I used
^
http://www.compsys1.com/workbe....html
(USB or Max233)
Side
tx- | -> Pin4 (rx)
rx- | -> pin2 (tx)
+5v |-> pin3 (not used if using usb adapter)
gnd- | -> pin1 (gnd)
|-> pin5(not used)
One 28 pin socket
One 4 pins "jumper" connector
Couple of (E)Eproms
Either a TTL to RS-232 or TTL to USB converter.
4 conductors wire
Max233 kit I used
^
http://www.compsys1.com/workbe....html
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Thread Starter
Needs to be About 20% Cooler
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From: San Bernardino, CA, USA
At this point, i'm new at this, i dont want to reprogram the rom. this is my daliy driver and dont want to jeprodize the function of the FI. I want to hook up a BASIC Stamp to the port to display info on a LCD.
Do i need to reprogram the ROM to get data from this port?
Do i need to reprogram the ROM to get data from this port?
Thread Starter
Needs to be About 20% Cooler
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Joined: Jun 2004
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From: San Bernardino, CA, USA
Now that we've determaned what it is, how to use it, i'd like more info on software.
how does the port work? in other words, does it behave like OBD2; send request data and ecu responds with the desired data?
any info on the software comands, functons, and features would help.
how does the port work? in other words, does it behave like OBD2; send request data and ecu responds with the desired data?
any info on the software comands, functons, and features would help.
it should behave like a 232 port.....
j/k....i would like to do this to my PR3, but i havent seen any info about it. You should be able to you use ghettodyne to monitor it i think.
j/k....i would like to do this to my PR3, but i havent seen any info about it. You should be able to you use ghettodyne to monitor it i think.
well what happens is the 4 pins that the max233 (which is like an adapter to get the ecu to plug into the computer port) is like a window that you can view info but change nohing. So the info is sent to the nvsram on the max233 then is logged on the computer. Download turboedit from http://www.turboedit.com and you will see
Thread Starter
Needs to be About 20% Cooler
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Joined: Jun 2004
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From: San Bernardino, CA, USA
Can I use A232DBA, the surface mount version for my port adapter?
http://www.compsys1.com/workbe....html
http://www.compsys1.com/workbe....html
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JC18 »</TD></TR><TR><TD CLASS="quote">Now that we've determaned what it is, how to use it, i'd like more info on software.
how does the port work? in other words, does it behave like OBD2; send request data and ecu responds with the desired data?
any info on the software comands, functons, and features would help.</TD></TR></TABLE>
I guess turboedit should work since it has this function as well, but the guy that did the page I linked you to has this program. http://www.ecucontrol.com/downloads.htm
Works on a Palm pilot software as well as Windows!
how does the port work? in other words, does it behave like OBD2; send request data and ecu responds with the desired data?
any info on the software comands, functons, and features would help.</TD></TR></TABLE>
I guess turboedit should work since it has this function as well, but the guy that did the page I linked you to has this program. http://www.ecucontrol.com/downloads.htm
Works on a Palm pilot software as well as Windows!
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4drEF »</TD></TR><TR><TD CLASS="quote">
I guess turboedit should work since it has this function as well, but the guy that did the page I linked you to has this program. http://www.ecucontrol.com/downloads.htm
Works on a Palm pilot software as well as Windows!</TD></TR></TABLE>
i think you can use the ghettodyne on a laptop or pc.....i think i have the palm pilot version already. I cant wait to hook this **** up.
I guess turboedit should work since it has this function as well, but the guy that did the page I linked you to has this program. http://www.ecucontrol.com/downloads.htm
Works on a Palm pilot software as well as Windows!</TD></TR></TABLE>
i think you can use the ghettodyne on a laptop or pc.....i think i have the palm pilot version already. I cant wait to hook this **** up.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JC18 »</TD></TR><TR><TD CLASS="quote">is'nt the PR3 a OBD1 ecu? i think it is. </TD></TR></TABLE>
they come both Non OBD and OBD1....
they come both Non OBD and OBD1....
Thread Starter
Needs to be About 20% Cooler
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Joined: Jun 2004
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From: San Bernardino, CA, USA
4drEF said I could leave my eprom stock and not have to remove it.
So what gives?
Is there another program out there just to test?
Is there a jumper I have to jump to enable this port?
this is my ECU:
http://www.pgmfi.org/twiki/bin/view/Library/PM9
however it says PM5 - L81 on the the side.
and yes, my ecu has a UV EPROM
So what gives?
Is there another program out there just to test?
Is there a jumper I have to jump to enable this port?
this is my ECU:
http://www.pgmfi.org/twiki/bin/view/Library/PM9
however it says PM5 - L81 on the the side.
and yes, my ecu has a UV EPROM
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by green91 »</TD></TR><TR><TD CLASS="quote">you gotta have mod'd chip to support serial output.. IE turboedit</TD></TR></TABLE>
Please explain.
Scenario - what if you socketed your ECU, chipped it, and ran the stock ECU program?
What does the chip have to do with the serial port that you add to the ECU???
Please explain.
Scenario - what if you socketed your ECU, chipped it, and ran the stock ECU program?
What does the chip have to do with the serial port that you add to the ECU???


