OBD II port simulator
Jul 13, 2006, 09:24 AM
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OBD II port simulator
Anyone know of a product that would simulate perfect OBD II port readings without the stock ecu being in place. If not, are there any electrical engineers on this site that could make one?
Jun 5, 2008, 12:17 PM
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www.obd2cables.com
Oct 17, 2008, 01:33 PM
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We use these simulators at work (for OBD development, scan tool/software testing):
www.obd2cables.com
www.obd2cables.com
my friend has a 96 Audi S6 from Canada that he's owned in NH for years.
Recently, NH and MA changed the way the car's get tested for emissions and all 96 and up cars MUST be equipped with OBD2 scanners.
His only has OBD1
His car is more or less stock and he's being forced to sell it now that NH won't pass it.
If this works for $250... he's be VERY grateful.
Oct 24, 2008, 09:01 PM
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Multi-protocol OBD-II ECU Simulator
Recently announced:
Multi-Protocol ECU Simulator with 12V Power Supply
The CAN module also lets you "listen in" on the bus traffic. Very fun to play with.
Multi-Protocol ECU Simulator with 12V Power Supply
The CAN module also lets you "listen in" on the bus traffic. Very fun to play with.
Oct 24, 2008, 09:04 PM
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How does this work?
my friend has a 96 Audi S6 from Canada that he's owned in NH for years.
Recently, NH and MA changed the way the car's get tested for emissions and all 96 and up cars MUST be equipped with OBD2 scanners.
His only has OBD1
His car is more or less stock and he's being forced to sell it now that NH won't pass it.
If this works for $250... he's be VERY grateful.
my friend has a 96 Audi S6 from Canada that he's owned in NH for years.
Recently, NH and MA changed the way the car's get tested for emissions and all 96 and up cars MUST be equipped with OBD2 scanners.
His only has OBD1
His car is more or less stock and he's being forced to sell it now that NH won't pass it.
If this works for $250... he's be VERY grateful.
So I'm afraid the simulator won't help your friend, not to mention that using it for this purpose would be illegal.
Vitaliy
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Mar 21, 2010, 10:46 AM
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Simulator device
I actually know a guy with a 2004 Subaru WRX that passed using this. Apparently this one is different since it support readiness monitor, VIN number and the other numbers that verify the calibration.
Trouble is, you would have to calibration numbers out of your stock ECU with a code scanner so you can plug them into this thing.
I think we give the testing station software more credit than it deserves. I think the software is written on a state by state basis, so therefore while some states may be strict about verifying numbers against a database, consider testing stations in BFE with no internet connection to validate those things...
I haven't tried it myself, but I think this would be a good alternative.
Apr 6, 2010, 11:48 AM
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I actually know a guy with a 2004 Subaru WRX that passed using this. Apparently this one is different since it support readiness monitor, VIN number and the other numbers that verify the calibration.
Trouble is, you would have to calibration numbers out of your stock ECU with a code scanner so you can plug them into this thing.
I think we give the testing station software more credit than it deserves. I think the software is written on a state by state basis, so therefore while some states may be strict about verifying numbers against a database, consider testing stations in BFE with no internet connection to validate those things...
I haven't tried it myself, but I think this would be a good alternative.
Apr 6, 2010, 12:25 PM
#10
You don't need this for what you're asking about. You can trick the output with the stock ECU with tephra mods or by doing the manual trick (putting a spark plug anti-fouler between the rear O2 sensor and the bung). It will pass the test either of these two ways. The OP is asking for when you replace the factory ECU with something like an EMS. In that case you need something like this to pass an OBD2 test.
Apr 6, 2010, 06:03 PM
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I have never used one of those simulators but I can tell you right now that the main thing a tester looks for is
1) no check engine light (MIL flag not set)
2) only 1 readiness monitor can be set to "Not Ready"
there may be a VIN check and some other stuff
also, it needs to work on the correct protocol. Before the CAN standardization, there were something like 6 different OBD 2 protocols used among the different manufacturers.
1) no check engine light (MIL flag not set)
2) only 1 readiness monitor can be set to "Not Ready"
there may be a VIN check and some other stuff
also, it needs to work on the correct protocol. Before the CAN standardization, there were something like 6 different OBD 2 protocols used among the different manufacturers.
Last edited by arghx7; Apr 6, 2010 at 06:18 PM.
Nov 11, 2010, 08:17 AM
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Nov 24, 2010, 01:45 PM
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