[Diy_efi] [off topic] performance meter app
Thu Nov 10 17:05:50 UTC 2011
Yep, those darn Mobiles, affecting more things than open controllers, disk drives and their cables can get
so easily affected, makes the drive looks like its erratic when its not, also with air flow sensors where
the AFM test pump is next tot he guys waist which has his mobile on it - have a drawer full of
good AFMs that tested bad in presence of a mobile !
Thats the only product I know of (other than some military items) that is allowed to stomp on
all other devices right across the whole spectra and still be considered legal <sigh> What we do
for the multinational comms companies...
At 12:10 AM 11/11/2011, you wrote:
>"Nothing is more entertaining than rolling down an electric window on a $2 million dollar prototype and have it shut off the engine in a sputtering death."
>LOL, yep! I have a friend with a prototype FreeEMS with no enclosure, just raw circuit boards and wires... he took his girlfriend somewhere in the car and she put her handbag down next to the contraption. I got a VERY concerned email from him telling me about how the car started bucking and misbehaving and eventually died completely forcing him to pull over and stop, but then it started up just fine and had no further issues for the rest of the drive. When I got the log I was confused for a while, then I recognised that distinctive GSM pattern in the waveforms (100hz full data) and it clicked! She got a text message! LOL! Log screeny:
>2011/11/10 Aaron <<mailto:aaron at creativeoverdrive.com>aaron at creativeoverdrive.com>
>?an unfiltered alternator noise being played back loudly through an am radio. (we all know that happens on older cars...)?
>Older cars and NEW cars.
>Honda still tests for radio noise in the AM stations for several continents.
>As well as alternator noise in FI/AT ECU signals, CAN Bus, GPS / Navigation, Satellite Radio, DVD Players, LCD screens
>To be fair, if it uses electromagnetic motion, it get?s test to see if it injects noise into any other system.
>Nothing is more entertaining than rolling down an electric window on a $2 million dollar prototype and have it shut off the engine in a sputtering death.
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