 Diagnostic Port Info |
 Dec 29, 2011 - 11:20 AM
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Enthusiast  Joined Aug 20, '10 From South Australia Currently Offline Reputation: 0 (0%)  |
Hey all just wondering if i was to get a OBD 1 to OBD 2 adapter Link and then to add an OBD 3 scanner to usb Link would it get the correct data to display realtime Engine RPM, Speed, Air Flow etc etc.
just wondering if anyone knows if it would work or if thay have done it what they used to do it and what programs they used. Thanks |
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Dec 31, 2011 - 12:17 PM
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Enthusiast Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) |
OBD2 data is more than just 'signals', its a serial data stream (digital), where as from what I understand the 22pin toyota diag connector is just raw signals from the PCM and very very limited serial data which does not conform to the global OBD2 specifications.
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Dec 31, 2011 - 3:16 PM
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 Enthusiast Joined May 4, '05 From western MD/NOVA Currently Offline Reputation: 2 (100%) |
QUOTE (Bitter @ Dec 31, 2011 - 12:17 PM)  OBD2 data is more than just 'signals', its a serial data stream (digital), where as from what I understand the 22pin toyota diag connector is just raw signals from the PCM and very very limited serial data which does not conform to the global OBD2 specifications. well that is what i was thinking, but hoping was not the case. the thing is that the "raw" signal from the OBDI ECU would still have to be a digital stream, and aside from the the lack of a number of inputs, the devices that are sending the inputs are (for the large part) the same. the real question on the stream (as you pointed out) is what format does the data come as.. and if the "scan tool" will be able to read any of it at all. or even be able to establish a connection.. well soon enough we will know, if tonight is good enough (new years eve, and i work at a restaurant) i will go ahead and get the two gadgets to see if they will work. i will first try it with the free version of torque... well.. sh!t,, lol.. we wont know if it works for about another 3 weeks or so since i am going to have to wait on the machine shop for the final prep to my block and crank before i can get the car back together.. Bitter, as for the "raw" signal, are you referring to it being just a port for a pin on ECU to jump to? if i am reading that correctly then yes defiantly most of the pin-outs on the OBDI "diagnostics port" is just jump points (like on a chip) but there IS a data stream off that port right? ****.. if anyone has a pin-out/schematic that would help allot. -------------------- |
Posts in this topic
lilguy Diagnostic Port Info Dec 29, 2011 - 11:20 AM
mandrek WOW!!! i did not know that there was s... Dec 30, 2011 - 3:05 PM richee3 So you have OBDI currently? I doubt if you could t... Dec 30, 2011 - 3:19 PM mandrek yup, i agree.. but the question would be, does the... Dec 30, 2011 - 4:47 PM match220 QUOTE (lilguy @ Dec 29, 2011 - 6:20 ... Dec 31, 2011 - 12:29 AM
Bitter I know that you can read the oxygen sensors and so... Dec 31, 2011 - 3:38 PM
lilguy Im building up a CarPC atm so once its in the car ... Jan 1, 2012 - 10:23 PM |
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