Quote:
Originally Posted by junqueyardjim
I see quite a little of this in the suburbs of Indianapolis. Pickup trucks, mostly Dodge Cummins with big dual 4" stacks that on accelerating do put out a tremendous volume of very heavy smoke. It is very nasty stuff in the air and any way they can stop it is OK with me
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Dodge went to computer controlled injection pumps with the 24 valve engine in 1998.5. There are multiple tuners that have the ability to change timing and fueling with the push of a button. The tuners can be used to increase fuel mileage, towing characteristics aod they can be made to spew extra particulates.
Earlier Cummins could have similar results by changing fuel plates and internal injection pump springs. They could not be changed on the fly.
I don't know when electronic tuners became available for Ford and Chevy but they are available now.
I ride bicycles. There is a guy with a Cummins (we tolerate the truck and buy the vehicle for the engine) that likes to roll coal when he passes us. We run into the dip wad a few times per year. I'd like to meet him on the street and discuss his poor manners. I'm sure that my companion could make him see the error of his ways.