@ the book store the other day I was thumbing thru the BOSCH handbook, and I came across an interesting item. It stated that on the K-Jetronic system, the roll of the control pressure regulator (or "Warm Up Regulator" as it was called in the book) is to asist the engine in warming up, and that it can be fitted as a fuel enrichment circuit (vaccum lines). Another thing that it stated was that it can be used to adjust fuel mixture for high altitudes. The emissions info sticker on my car shows readings for up to 4000 feet altitude, but the info stickers on the 82's say all settings are preset @ the factory, and are good at any altitude. Is there a differance in the fuel injection system between the 81 & 82 models? -Robert vin 6585