RPO's

[TomsToy]

Does anyone know what GM 1992 RPO code NN6 indicates?

 

[Rob]

Are you sure it's NN6 and not MN6 which is the RPO for the ZF 6 speed transmission?

 

[Ken]

NN5 is CA Emisions Requirements.

Regular Production Option Codes (R.P.O.) for General Motors Vehicles
Published: October 1998

• NN6 : EMISSION OVERRIDE, DIESEL FUEL, EXPORT

there are a lot more...

I don't think they made a diesel Vette though. :L

_ken

 

[TomsToy]

RPO NN6

LOL, Well, I went an looked on the RPO list on the car, and it must have been a mistake/misprint OR I have the ONLY diesel vette!! Wind it up Baby! LOL. Thanks guys, for the research, that one had me going.
Tom

 

[Hib Halverson]

NN 6 *probably* means an emissions override for either a diesel engine *or* a car that's being exported.

It's certainly not for a diesel Corvette.

With gasoline engines NN6 probably meant leaded fuel compatibility along with some different calibration for use in countries that don't have emissions laws.

 

[TomsToy]

RPO

Thanks for the insite Hib, that's great info for the records.
Tom