| Author | Topic |
|---|
Location:
Newcastle
Registered:
July 2003
|
|
Re: jaycar digital tacho problem
|
Tue, 01 November 2005 08:46
 
|
 |
my flat mate just gave me a hand and we gave it another shot.
i thought perhaps the tach was sucking too much energy from the coil so i placed a resistor inline with the input to the tach.
at first i tried 500kOhms. it ran fine but gave no signal on the tach. i stepped down in values until i got to about 400Ohms. then i got a signal on the tach (too high a reading though) and the car ran.. any lower resistance and the car stalled.
when the car is running without the tach connected i put the multimeter from the -ve of the coil to the chasis. it was measuring between 300-400hz when idling.
any thoughts ?>
|
|
|
