Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - OBD2 Emissions- VIN,CALID,CVN (LS1 swap)

s14newb · 02-15-2012, 04:25 PM

Thanks for the response. I found the CA emission laws here: http://www.arb.ca.gov/msprog/obdprog/obdregs.htm
The updated laws are the section 1968.2

From what im reading (mainly on pg. 121-122) only after 2005 were manufacturers required to embed the vin in the ecu. So I'm thinking that Nissan did not have a vin in their ecus in 1996, like you said. Now in that law it says that all vehicles will be required to submit the CALID and CVN. But only vehicles from 2008 and after will be checked with other calids and cvns from the same vehicles to make sure they numbers are valid.

Now if i read that correctly, please correct me if im wrong, for a 1996 car, as long as the ecu sends a calid and cvn it doesn't matter what they are?

Or even better question, if somebody has a decent obd2 scanner that has vin, calid, and cvn functions, what happens when you scan a 96-98 240sx and request that information?

02-15-2012, 04:25 PM	#4
s14newb Zilvia Member Join Date: Sep 2011 Location: PA Posts: 222 Trader Rating: (17)	Thanks for the response. I found the CA emission laws here: http://www.arb.ca.gov/msprog/obdprog/obdregs.htm The updated laws are the section 1968.2 From what im reading (mainly on pg. 121-122) only after 2005 were manufacturers required to embed the vin in the ecu. So I'm thinking that Nissan did not have a vin in their ecus in 1996, like you said. Now in that law it says that all vehicles will be required to submit the CALID and CVN. But only vehicles from 2008 and after will be checked with other calids and cvns from the same vehicles to make sure they numbers are valid. Now if i read that correctly, please correct me if im wrong, for a 1996 car, as long as the ecu sends a calid and cvn it doesn't matter what they are? Or even better question, if somebody has a decent obd2 scanner that has vin, calid, and cvn functions, what happens when you scan a 96-98 240sx and request that information?