67 results for tachometer circuit boards

1984-1986 Pontiac Fiero used a Torque Switch in the Headlight Actuator and external Relays to switch off and on the Actuator power circuit. Here's how it works: The headlight door motors reverse di ...

When the reversing switch is not working correctly, it is usually a simple mater to diagnose with fairly high accurately.If you are not sure if the Pull down is getting voltage to it. You should ch ...

Condition 1 - Engine will not rotate when attempting to start Battery terminal connections loose of corroded. Check the cable terminals at the battery; tighten cable clamp and/or clean off c ...

Condition 2 - Engine rotates but will not start Fuel tank empty. (This does happen surprising often.) Battery discharged (engine rotates slowly). Check the operation of electrical comp ...

Coolant Sensor Is your Fiero running a bit hot these days?  Understand how the Fiero cooling fan system works can help you to quickly know if the cooling fan system is working properly. The f ...

Code 12This code will flash whenever the diagnostic terminal is grounded with the ignition in run, and the engine off. If this code appears while the engine is running, no reference pulses from the ...