Re: More Boost

[EICHSTEV@aol.com]

Peter Wales said:
> There are 3 wires coming from the pressure sensor, 0v 5v and output. Use
> your meter to see which is which. The output should be about 2-2.5 v with
> the ignition on and the engine off. Cut the output wire and now we have
4wires. 0v,5v, > output from the sensor and input into the board.  
> Connect the 470 ohm resistor to the output from the sensor and to the input
> to the board. Connect the zener (stripe end) to the input to the board and
the other > end to 0v
> Now your computer will not retard after 12 - 13 PSI boost and all of your
> safety circuits will still work.

There is one problem here, the boost display will also be faked out with this
addition. You can get at the signal where it goes the processor only, and not
mess up the signal to the display (which goes through an op amp first).   I
guess you could say... cut a trace and add surface mount components... but,
nahh, nobody would do thaattt. Ohhh, someone does... sorry Ned.

Steve Eiche
Lakewood, CO
'82 Not So Ur q