I've been doing a bit of research into the smt6 unit, and have a few questions.
1) The smt6 basically just changes the incoming afm/maf and crank position sensor signals, to make the ecu think that it is operating under different conditions, right? So if I want it to run richer, I would tell the ecu (via the smt6) that we are putting more load (more air) on the engine. But, the ecu can check the 02 sensor, and realize that we are now running too rich, and reduce fuel flow.... right? So do we force the 02 to run in open-loop, so that the ecu doesn't know we are fooling it?
Please clarify if you can. If any of the above info is wrong, let me know so I can try to have a better understanding.
2) Can the home mechanic succesfully program this unit? Or would I need access to a chassis dyno?
3) Is it worth my money? Time isn't a real issue, as I'll be doing this mostly for the experience and the fun of it.
I've already read "Bosch Fuel Injection & Engine Management", and some other threads here about it.
Thanks for any input, but don't tell me to
.
1) The smt6 basically just changes the incoming afm/maf and crank position sensor signals, to make the ecu think that it is operating under different conditions, right? So if I want it to run richer, I would tell the ecu (via the smt6) that we are putting more load (more air) on the engine. But, the ecu can check the 02 sensor, and realize that we are now running too rich, and reduce fuel flow.... right? So do we force the 02 to run in open-loop, so that the ecu doesn't know we are fooling it?
Please clarify if you can. If any of the above info is wrong, let me know so I can try to have a better understanding.
2) Can the home mechanic succesfully program this unit? Or would I need access to a chassis dyno?
3) Is it worth my money? Time isn't a real issue, as I'll be doing this mostly for the experience and the fun of it.
I've already read "Bosch Fuel Injection & Engine Management", and some other threads here about it.
Thanks for any input, but don't tell me to

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