TOONGA wrote:Wifey and I work as a team she makes I consult (taste)
I can see you and I have done a lot of taste testing
TOONGA wrote:How does the ECU know, apart from the knock sensor to advance or retard the timing? and how is the timing retarded or advanced at the motor?
Throttle Position & Air Flow Meter plus in areas of the ECU mapping it also uses the O2 sensor
TOONGA wrote:Wouldn't the ECU need as many signals as possible to control the timing so that the knock sensor was the last resort?
An ECU doesn't really need that many sensors to run an engine but to do it as efficiently as possible Subaru use lots of sensors. Cheap ECU systems use bugger all sensors but don't run as good as higher priced units.
The knock sensor is there to protect the engine from hurting itself. It retards timing when it hears noise but it doesn't advance or retard during the normal course of daily driving.
TOONGA wrote:Faulty as in working but sending the wrong signal.
The Ignitor does not send any signal to the ECU. It's the ECU that triggers the Ignitor via making contact to negative.
The Ignitor should only have 5 wires going to it. One is an earth, 2 are to the ECU and the other 2 go to the Coil. The Coil is powered from the Ignition Relay, then the negative side of the coil goes to the Ignitor. Because this is 12v power, there is a lot of power going back to the Ignitor, thus causing lots of heat and this is the reason you need to place the Ignitor on a heat sink. Using high grade cooling paste (best place to buy this is from Jaycar or a computer shop) to help with the transfer of this heat away from the Ignitor. Due to this heat and 12v power the Ignition Power from the Coil can not go back to the ECU.
You know you are getting old when the candles on your birthday cake start to cost more than the cake itself.
RSR Performance
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