v8bloke Posted June 9 Report Share Posted June 9 I had my Extreme ECU installed by a dealer a few years before Covid and it seemed to work OK not had it running since. When I looked closely at the wiring it is very below standard so I have been trying to rectify. The ignition powers a relay that supplies ECU 14v. Aux1 test (on) powers a relay that feeds injectors and ignition. Aux5 powers the fuel pump relay. I have checked all grounds and other wiring and seem to be as link wiring instructions. Tried to do an Injector and ignition test today but neither worked. Settings seem to be ok where do I start looking? Many thanks 9thJune24.pclr Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 9 Report Share Posted June 9 Yeah there is nothing in your map that would prevent the ign & inj test from working. If you unplug the injectors, do you have 12V on one of the pins in the injector plug? What does it have for coils/ignitors? Quote Link to comment Share on other sites More sharing options...
v8bloke Posted June 10 Author Report Share Posted June 10 Thanks for the reply, Yes already checked supply to injectors and all good. Using Range Rover P38 coils, an ignition amplifier. Was working fine last time out in 2019. since then I have changed both Trigger1 and trigger 2 setups. when cranking the ECU is seeing both. Could this be a problem within the ECU? Quote Link to comment Share on other sites More sharing options...
v8bloke Posted June 10 Author Report Share Posted June 10 attached diagram of power supply wiring. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 10 Report Share Posted June 10 5 hours ago, v8bloke said: Could this be a problem within the ECU? Very unlikely that 8 injector drives and 4 ign drives all failed at the same time. So these coils? What does it have for an ignitor between the ecu and coils? If you pull say injector 1 wire out of the ecu plug and briefly touch it on ground, do you hear the injector click when you do that? Quote Link to comment Share on other sites More sharing options...
v8bloke Posted June 10 Author Report Share Posted June 10 Bosch 211 style ignition driver from triggerwheels.com i will try earthing No1 injector and see what happens Many thanks Quote Link to comment Share on other sites More sharing options...
v8bloke Posted June 10 Author Report Share Posted June 10 OK Injectors have 11.8v, when i touched the pin to earth with ignition on there was no click, nothing happened? I extended the wire and touched the block and still nothing! How is that possible? block has good ground, new battery and cables. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 10 Report Share Posted June 10 Injectors are possibly seized, fairly common when they have been unused for sometime. Give them a few good taps with a screwdriver or similar while intermittently touching that wire to ground. Quote Link to comment Share on other sites More sharing options...
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