Does anyone know if the injectors have a fuse or a relay that they use? I know they are controlled via the ECU but was wondering if they had anything and where it is situated? Reason I am asking is the car would start with a bump now nothing since I had the pump out. I am not confident the injectors are injecting!
Injector question
- Thread starter Darrnw
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ming
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Cor. . .aint ya got it going yet Darrn,,,the injectors are fed via ecm and its inputs are huge , if ya clever like me you could put an avo on volts and measure each signal to injectors dont use the earth go to both wires ,start at 12vdc but think its a lower voltage 6vdc from ecm , the In [ma] is very low and so an exspensive dc simpson meter could detect it[clamp meter] the +ve is common to all and signal is via -ve so best use a digital meter,this is a very high speed signal, so a latch memory type meter or osiloscope . . .best oh luck. . .
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Minge - mornin' - does the lo volts as described above apply to all circuits - cos i woz finkin abart Flyboys rear wiper - it says power on gr and return on g (and reversed) - do yu no if thats 12v or less?
ming
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Very good question floppy. . .all signals on most modern earthling ecu,s ecm,s ect [managment systems] where eeproms or chip type circuits are used, be it 12vdc or lower switching devices [inputs]switches ,detectors ,ect, are +ve, , , , but outputs [things that do work]lights relays led's ect are normally -ve [signal] on its other side a common +ve ,the -ve is not to be confused with the cars earth, why you might ask ,will let ya think about it,smirk. . . .The Mad Hat Man said:
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easy peasy - but i aint tellin ya - coz i is a whingein old bore.that still dont answer the q - is the motor 12v? I assume it is to keep the ol' III's down - but I is askin coz if me ol' m8 wants to test his motor an sticks 12v on it and it aint - he will deffo have a caput motor - wont he..
ming
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Reet ,thing like motors ,relays ,solenoids ect,still work on 12vdc , but smaller things [control] fed orft any ems, then never ever stick a test lamp /cheap avo or linking to earth or flashing 12v down it [or you'll be sobbin]also remember that some smaller type relay's [use the ems]. . .if volts is decreased then amps increases , this is your earth law, the reason that ems use a lower v [sometimes] is the chips are manufactured that way, so an isolated psu is used ta stop high end inductance from other cables . . .got ah headache now going ta the pub. . . .The Mad Hat Man said:
that still dont answer the q - is the motor 12v? I assume it is to keep the ol' III's down - but I is askin coz if me ol' m8 wants to test his motor an sticks 12v on it and it ain't - he will deffo have a caput motor - wont he..
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lol - ta Minge
"this is your earth law"
ps i fort it woz Ohms Law and it was the same whichevva planet yu woz on.
"this is your earth law"
ps i fort it woz Ohms Law and it was the same whichevva planet yu woz on.
ming
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a basic earth law only. . .The Mad Hat Man said:
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aint it the same on Zog?
ming
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We dont use any electrical energy,stopped usin that when you was apes ,[ like the tractor boys] titter. . . . .The Mad Hat Man said:
