I recently bought one of those high-speed digital multimeters that measure frequency so that I could test my MAP sensor (see jrichker's tech notes on code 22). Welp, turns out my MAP was bad (0 Hz), so I bought a new one and installed it today. Haven't cleared and dumped codes yet, but the new sensor passes the frequency test.
I understand that MAPs rarely fail, but what causes MAPs to fail when they DO go bad? I'd like to identify any potential "upstream" problems so the MAP won't fail again in the future.
BTW, I REALLY like my new frequency-testing DMM, and it was only $23! It's on a number of "best DMM" reviews, and this duder swears by em: http://easyautodiagnostics.com/misc-index/choosing-a-digital-multimeter-1
If you're looking for an affordable DMM that measures Hz, then I recommend that you consider the Mastech.
(Note: I have no affiliation with this multimeter brand nor the aforementioned duder).
I understand that MAPs rarely fail, but what causes MAPs to fail when they DO go bad? I'd like to identify any potential "upstream" problems so the MAP won't fail again in the future.
BTW, I REALLY like my new frequency-testing DMM, and it was only $23! It's on a number of "best DMM" reviews, and this duder swears by em: http://easyautodiagnostics.com/misc-index/choosing-a-digital-multimeter-1
If you're looking for an affordable DMM that measures Hz, then I recommend that you consider the Mastech.
(Note: I have no affiliation with this multimeter brand nor the aforementioned duder).
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