Hi , yesterday got the injector light constantly lit and reading the codes found this: 89-Baro pressure sensor, 07-MAF, 22-Canister valve, 50-Boost Control, 04-02-Idle Control, 16-Timing variator:
Cleaned them and after starting the engine got the same. Now, looking over the wiring diagrams, (my) logic says all these share common positive supply coming from the injectors control relay which should be 12v, and I only measure 6v on the corresponding pins. And few questions arise, because of my 20vt being mid-99 and the relays don't correspond 100% with the diagrams. Am I right assuming the injector control relay is the red one and the fuel pump relay - the black one, just behind the ECU and the glove box (LHD)? Also, there is junction in the diagrams between all these sensors/valves/actuators positive supply and the relay switched contact, but where actually is it? Somewhere in the loom? I think the problem should be there because the relay outputs 12v (if it's the correct relay I measure). And then there are other three relays sitting top right in the engine bay, one red and two blacks, someone knows what they are for?