By serious mapper I meant someone with some serious engineering background and the right tools to do the job, amongst others a dyno, a set of sensors to complement those of the car if need be, and a proper analysis and programming environment. In my view these are the prerequisite to map a car correctly.So you have drank the Kool-aid......?
The difference between "True Motorsports" and just delete or defeat devices is where you have to consider is the SMOG device really hindering an alleged performance characteristic or is it that someone can't tune or is lazy and they direct you to delete it & because they set a control table to ZERO?
No real rocket science to setting stuff to zero huh, is that to be respected?
I guess my question to you and any of the tuners is, if the engine is running allegedly more efficient after one of these tunes and with harmonious combustion, why would you have to delete the CAT or readiness monitors and if you didn't remove the physical CAT, why would the CAT exhibit shortly after such a tune & at a 99% failure RATE on an actual factory CAT & being completely damaged, restricted or plugged?
Ha, this I can understand as a remap tend to push the limits, but you would also agree it's a good thing it helped to identify an air leak, and I'm pretty sure the leak was causing some performance degradation with the oem map without the driver knowing it! Playing the devil's advocate of course, but having said that what is the real conclusion of the above story?No, there is no such forum rule. That's just Jack being Jack.
Now remaps do make trouble-shooting more difficult. I've seen it myself where a car with stock software ran pretty well, but "tuned", it was horrible, and the source of this was eventually traced to a small vacuum leak. So a "mapped" ECU can behave quite a bit differently. In addition, some tuners seem to think it's necessary or desirable to disable certain tests for faults...
Thanks for the confirmation, so there's no way I can have access to more details about those MAFs readings, particularly what really goes out of the MAF (voltages, etc.), except of course by tapping the wires.No, there is no such forum rule. That's just Jack being Jack.
Those calculations -- turning analog sensor readings into something resembling real-world values like g/s -- are done by the ECU, not VCDS. Now the digital value that the ECU sends to VCDS may still not be g/s, but that conversion will be some well-understood formula that isn't likely to be wrong, especially on 2003 car.