does anyone have any information on the differences between a 330 type code and a 340 type code besides that one is a california model (340) and one is a USA standard model (330)

both are carrera 2 coupe. is the difference a simple matter of california emissions standards?

smokey
1990 Carrera 2 california coupe

 

I own a 340 type, which as far as I can tell through the records, never saw anywhere near Cali. Purchased new in VA. I spent (too) much time trying to solve this mystery, but finally gave in when I read somewhere that there is simply no difference mechanically for these cars...it's a red-tape thing

 

I am sure it's Federal vs. Cali emissions.

I believe it is a different DME or DME mapping.

 

hehehehehe....kills bugs fast....I love it...lol

 

You should have seen the TV commercial! It was the best.

Porsche has buried it somewhere though for taking heat for being violent.

I have spent many countless hours trying to dig it up.

 

Taking heat for violence against bugs - and you wonder what the hell is wrong with the world??

 

Yeah, it was a big controversy. It was the most retarded thing.

It was an awesome commercial.

Started out on a country road with a jogger and a bug buzzing around and he shoes the bug away, then the bike rider and the bug buzzes around, then it might be a motor cycle or scooter, then a car the bug keeps getting upset more by turbulance and it's really buzzing around then the Porsche Turbo SPLAT on the windshield and then the windshield wippers wipe what's left of the bug away.

It ends with the simple tag line.

KILLS BUGS FAST

It was brilliant.

 

The only difference I ever came across with the California cars was a requirement that the ECU firmware contained code that allowed the check engine light to pulse fault code sequences when the ignition was switched on with the throttle pressed to the floor (without cranking the engine). If the information I have is accurate, the standard North American PROM part number was stamped 1267356142 (this is what came in my car) and is listed as 964.618.124-01, and the California part was stamped 1267357006 and was listed a 964.618.124-03.

Before I put in my Autothority MAF and chip, I found a copy of one of these CA chips and put it in my car. Sure enough it flashed the engine fault codes when you did the ignition switch/throttle thing.

Jim

 

Jim, that's the most informative explanation I've ever come across for a 330 verus 340, and you even put the theory to the test and proved it! Thank you for posting