Thread: MIsfiring ,too rich mixture, Need help

Peter I think they are low impedence injectors as they have a resistor pack. See here
Tech - Low and high impedance injectors
If so the resistance should be as noted.
You will soon find out as they will be one or the other.
Regards Philip A

thanks Philip

Well I am at a loss to know what the hell is going on. Have taken the connections off three injectors and placed ohms test probes on to connections on injector, I get 0 reading using 20k ohm range on all three injectors (2,4 and 6 cylinders). It reads for a fraction of a second when first connecting probe but then goes to zero. I thought it was suppose to read 2-3.5k?? Haven't tested any further but I wanted to see if I am doing this correctly and if I am getting zero then whats the story? Guidance appreciated.

Originally Posted by PeterAllen

Well I am at a loss to know what the hell is going on. Have taken the connections off three injectors and placed ohms test probes on to connections on injector, I get 0 reading using 20k ohm range on all three injectors (2,4 and 6 cylinders). It reads for a fraction of a second when first connecting probe but then goes to zero. I thought it was suppose to read 2-3.5k?? Haven't tested any further but I wanted to see if I am doing this correctly and if I am getting zero then whats the story? Guidance appreciated.

I would expect 2 to 3.5 OHMS for 12V injectors, not thousands of ohms. By ohms law your current would then be in the range of amps not milliamps.

Agree , read the Honda thing . It says 2 Ohms not KiloOhms which is thousands.
Regards Philip A

Well hopefully that explains it, will retest and advise, Thanks for clarification I must have taken the reference down incorrectly, regards

Ok all injectors checked out at 2.7ohms. Helps when the meter is set at the right range. Moving on to check Coolantant Temp sensor. Where is this as have not been able to verify it from other posts? Some indicate it being on thermostat housing but I think that is the coolant temp gauge as mine has only one wire spade fitting and an earth wire and the cts is suppose to have a bosch fitting same as injectors.
Can anyone tell me what the two sensors are on the front top of the passenger side bank immediately infront of the number one cylinder injector as both of these have bosch fittings?

Originally Posted by PeterAllen

Ok all injectors checked out at 2.7ohms. Helps when the meter is set at the right range. Moving on to check Coolantant Temp sensor. Where is this as have not been able to verify it from other posts? Some indicate it being on thermostat housing but I think that is the coolant temp gauge as mine has only one wire spade fitting and an earth wire and the cts is suppose to have a bosch fitting same as injectors.
Can anyone tell me what the two sensors are on the front top of the passenger side bank immediately infront of the number one cylinder injector as both of these have bosch fittings?

G`day , the forward one is the thermotime switch and rear one is the coolant temp Sensor . The one in the thermostat housing is for the AC fans when the engine overheats but i thought it had two spades and the Sender for the gauge is on the right (drivers side ) at the front of the inlet manifold it does have one wire .