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Old 03-04-2013, 09:13 PM
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Swap to OBD2 From OBD1

Just like it says, Iam wanting to change my 1994 Firebid from obd1 to obd2. How hard will this be and what will i need other than the computer. Thanks for any advice.

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Old 03-04-2013, 10:34 PM
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If you are looking for more diagnostic capabilities, You could have the obd1 ecm chipped and run crome software.
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Old 03-05-2013, 07:59 AM
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If you just changed the computer, the computer is probably going to look for sensors that do exist on the OBD1 engine. The OBD2 engine may have different combustion chamber shapes, and other changes to make it meet OBD2 standards. The OBD2 computer may require the matching transmission.
You would need to accommodate the OBD2 data port.

If you really wanted to do this, I would recommend you start with a pretty complete OBD2 car, including exhaust system, that is running good, AND SHOWING NO CODES, before starting the swap. OBD2 also monitors the evaporative emission systems. You would need to make sure the fuel pump pressure is the same, and it uses the same return lines to the fuel tank, if that is how the fuel system works.
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