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Location:
Newcastle NSW
Registered:
June 2002
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speed sensors
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Mon, 20 October 2003 11:31
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does anyone know what effect the speed sensor actually has on the management apart from having the obvious speed limiter
also is the speed sensor in an AE82 compatible with the ecu from an AE101?
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Location:
NSW, East Coast
Registered:
July 2003
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Re: speed sensors
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Mon, 20 October 2003 21:58
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Speed sensors let the computer know what speed the car is doing so that it can get the fuel map right for idle and speeds approaching idle amongst otherthings, My 4ag doesnt have it connected and the check engine keeps coming on, it does run little rich but im not worried.
Not sure about your other question thou.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: speed sensors
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Mon, 20 October 2003 23:46
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Yah, why IS it that so many people seem to not connect the bloody things? 
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Location:
sydney
Registered:
March 2003
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Re: speed sensors
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Tue, 21 October 2003 13:14
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speed signal comes from the dash speedo
cars with carby engines dont have the speed signal due to different speedo
when i wire up carby cars with efi engines
i dont wire up speedo or ecu light cause if u dont do the speedo
wire then the light comes on
one way around it is to fit a newer speedo from an efi car
but if u leave it off on a 4a engine its ok
if u leave it of on a 1j and its auto then it might not change gear
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Location:
Brisbane
Registered:
May 2002
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Re: speed sensors
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Tue, 21 October 2003 20:31
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If you leave the speed sensor disconnected on a 20V, it will rev-cut around 7500rpm instead of around 8250. Some of the factory carby dashes do have a reed switch output, there is just no wire in the plug for the output... eg Aus AE86 dash.
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