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Old 03-07-2013, 12:02 PM   #25
NOTORIOUS VR
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Join Date: Mar 2004
Location: Toronto
Posts: 3,166
Quote:
Originally Posted by dcramer View Post
S50B32's do not have post cat sensors so not OBD2 compatible.
That is not true... you don't need post cat O2's to be OBD2 compatible. OBD2 is a standard for the ECU to speak with testing equipment. It doesn't matter if there is no air pump, or rear o2 or even no EGR valves.

The ECU is programmed to know what it has and what is a valid check.

In Europe they didn't have post o2 sensors because they didn't bother with post cat efficiency tests. That doesn't mean the ECU and the car wasn't OBD2 compliant.

Quote:
This is from the drive clean guide: http://www.ene.gov.on.ca/stdprodcons...rod_080001.pdf

It refers to Appendix D of the Drive Clean SOP will list the majority of vehicles the
ministry has identified as not being compatible with the OBD test.

And the directors ability to use an equivalent test.


8. TWO SPEED IDLE TEST GASOLINE FUELLED LIGHT VEHICLES
(AND OTHER FUELS EXCEPT DIESEL)
The following Two Speed Idle Test is to be used in the program up until December 31, 2012,
for vehicles unable to be tested using the dynamometer as described in Section 9.
The following Two Speed Idle Test is to be used in the program effective January 1, 2013, for
vehicles unable to be tested using the OBD system test as described in Section 9.0.1. This Page 5 of 20
will include vehicles with the model years 1988-1997, vehicles not OBD enabled or vehicles
not compatible with the performance of the OBD test procedure referred to in Section 9.0.1 of
the Regulation. Appendix D of the Drive Clean SOP will list the majority of vehicles the
ministry has identified as not being compatible with the OBD test.

Maximum emissions standards for the preconditioned Two Speed Idle Test are provided in
Table 8.
The procedure to be used is the preconditioned Two Speed Idle Test set out in the USEPA
publication EPA-AA-TSS-I/M-90-3 January 1991 Recommended I/M Short Test Procedures
for the 1990's: Six Alternatives.

A test may be used that the Director considers equivalent.
That's all fine any dandy, but it doesn't say anything about 1998 cars, by reading that it's showing that 1988-1997 cars could fall into the "not compatible" list. Which to me makes sense why they left a grace year, for half model years etc.

You specifically said that there are 1998 cars without OBD2, I don't see proof of this anywhere so far and no mention of 1998 cars being able to test w/o an OBD2 port working.
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