Which is the idle switch on a Miata?
AB are the variable resistor and CD are the idle switch. With an ohmmeter on the 20k scale, AB reads 3.82 static and when rotated decreases linearly down to .52 against the WOT position. Connectors CD are shorted in static position and open when rotated off idle position.
Which is the throttle terminal on a Miata?
This is a double pole single double throw switch with the center off. The common terminal is TL. With the throttle at rest (and properly adjusted), there will be continuity between TL and IDL. With the throttle at maximum, there will be continuity between TL and POW.
What causes idle surges on a car ECM?
Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges.
What does the TPS signal on a Miata mean?
With this signal, the ECU can retard timing to give you more power or advance timing to give you better fuel economy. Finally, if the TPS is not adjusted correctly, you may have issues with your idle. The TPS on the 1.6 liter engines has two switches in it. One that indicates throttle closed and one that indicates WOT (wide open throttle).
AB are the variable resistor and CD are the idle switch. With an ohmmeter on the 20k scale, AB reads 3.82 static and when rotated decreases linearly down to .52 against the WOT position. Connectors CD are shorted in static position and open when rotated off idle position.
Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges.
What to do about idle surge in Mazda Atenza?
So a second thing to try that is cheap and easy is take a toothbrush and intake cleaner and clean out the throttle body and throttle plate very well and then unhook both battery cables and touch them together. Wayne Crawford : Hold them together for a full minute. This clears the keep alive memory so the idle adaptive strategy can relearn.
This is a double pole single double throw switch with the center off. The common terminal is TL. With the throttle at rest (and properly adjusted), there will be continuity between TL and IDL. With the throttle at maximum, there will be continuity between TL and POW.