Xoutpost.com - View Single Post - experimental MAF reset switch: which circuit to interrupt? more complications

workingonit · #36 10-20-2024, 12:30 PM

Quote:

Originally Posted by BimmerBreaker

...I really think this whole thing is pretty crazy. The system is designed to report a problem when something is out of tolerance. Fooling the sensor into thinking it is within tolerance is completely missing the point of why these sensors exist in the first place. It's not hard to imagine causing other problems as a result of this tinkering - the least of which may be other engine codes; and could quite easily also cause engine damage.

I agree with you, it is crazy, but when you've gone over and over and over the engine for three years now, looking for "vacuum leaks" and "fuel pressure problems" etc., and never finding anything wrong, it's time for a "hail Mary" workaround.

I'd rather not experiment with an otherwise healthy engine (only the fuel trims are a problem), due to having little money to repair/replace parts that may be adversely affected, but I've read of many instances where high-performance tuners & racers have modified the MAF and/or MAP signals (either with specific value resistors...which is beyond my current electronic knowledge), or with an aftermarket tuning device, as I displayed in post #24 of this thread https://xoutpost.com/1240938-post24.html.

I decided to try making my own version, using a Buck-Boost converter, because if the experiment to adjust the MAF output signal fails, then I can use the "project box" in my house or garage, to power and/or test other DC items (phones, tablets, case fans, switches, etc.), and not waste my (limited) money on a single-use project.

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