I'm still considering adding a homemade, on-the-fly "MAF sensor reset switch", simply because I need an interim fix for the phantom vacuum leak, fuel system shortfalls, or simply a MAF problem (choose one, or all, or none of the above) problem, especialy now that emission-inspection time is coming soon. And, after using the old, bad, Siemens sensor, and seeing how fast it can set a SES light, I don't want to have another such situation pop-up, when I'm going to the inspection station.
But, even if I install the reset switch, it won't do anything to actually reduce the effects of the "lean condition" that my MAF sensors all show to be present. So, I've been looking for a way to adjust the air-fuel ratio manually, tricking the DME. I found this on the internet today:
It was designed for use with a HHO device (hydrogen/oxygen adder/converter) which I suppose is like a power adder. As I've read it, the device shown can be used without the HHO being activated, but running on stock engine power alone. There are three wires, like the analog MAF sensor has, so instead of using a reset switch, I might could adjust the MAF to tell the DME what I'd like it to see.
I like remote devices for dashboard tuning anyway, having used ones that enabled me to adjust timing, launch and top-end rpms, and even nitrous horsepower injection jet sizes, all from my dashboard (while drag-racing). I'm sure that this device could be used to adjust the MAF sensor otput signal, to actually convince the DME to change the fuel delivery rate, away from a lean condition. Done a little bit at a time, so as not to go full lean or full rich, with the bad consequences that might follow.
To make my reset switch, I'll be ordering about $35 of parts, and as soon as my limited "car" budget recovers (from a recent auxiliary fan replacement $200, three vehicles inspected/registered $275-290, all in a month), I'll probably order this MAF tuner device from Europe. I presume there will be instructions for its' use.