uksolo
Member +
From yesterday, I am working on wiring of my car.
Wiring is very messy like nest and no one knows which wire goes where.
So I decided to neat it myself because it is a very time consuming job and no mechanic will do it. They like easy money.
Now I saw some strange issue.
Everywhere on the internet, they say #10 provides ground contact to Injectors No 1 & 3 and #20 gives ground contact to Injectors No 2 & 4.
BUT
To my astonishment, connection was like this mind boggling.
Wires from #10 and #20 traveled separate for a while and then spliced together with one wire and then split again and connected to Injectors 1-3 & 2-4 respectively.
Am I hallucinating or what?
To my understanding, the ECU gives ground pulses to Injectors 1-3 & 2-4 via Pins #10 & #20.
#10 & #20 do not give ground signals simultaneously but only at appropriate times.
I mean to say, if #10 makes ground contact of Injectors 1&3, then at that time #20 will not... and vice versa.
If my knowledge is correct, then all my 4 injectors fire at the same time regardless of what pin (#10 or #20) from ECU is making the ground contact.
This way, 2 Injectors are always wasting fuel and contributing no part in combustion.
And this is the reason why my car is always running rich and all my Spark Plugs are Black.
And no matter what I do, change O2/ECT/IAT/MAP/TPS.... My rich running car problem will never solve.
Am I talking correct or not?
@Jay
@SKINY
Wiring is very messy like nest and no one knows which wire goes where.
So I decided to neat it myself because it is a very time consuming job and no mechanic will do it. They like easy money.
Now I saw some strange issue.
Everywhere on the internet, they say #10 provides ground contact to Injectors No 1 & 3 and #20 gives ground contact to Injectors No 2 & 4.
BUT
To my astonishment, connection was like this mind boggling.
Wires from #10 and #20 traveled separate for a while and then spliced together with one wire and then split again and connected to Injectors 1-3 & 2-4 respectively.
Am I hallucinating or what?
To my understanding, the ECU gives ground pulses to Injectors 1-3 & 2-4 via Pins #10 & #20.
#10 & #20 do not give ground signals simultaneously but only at appropriate times.
I mean to say, if #10 makes ground contact of Injectors 1&3, then at that time #20 will not... and vice versa.
If my knowledge is correct, then all my 4 injectors fire at the same time regardless of what pin (#10 or #20) from ECU is making the ground contact.
This way, 2 Injectors are always wasting fuel and contributing no part in combustion.
And this is the reason why my car is always running rich and all my Spark Plugs are Black.
And no matter what I do, change O2/ECT/IAT/MAP/TPS.... My rich running car problem will never solve.
Am I talking correct or not?
@Jay
@SKINY
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