Injector "pulses"
06-12-06, 10:02 PM
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Injector "pulses"
I just got off the phone with my mechanic and i dont know really if an RX7 is suppose to "pulse" with the injectors.
he said that it chould be a grounding problem... can it?
also he chouldnt detect any pulses with any of the 3 computers that i gave him.
what are some things that i can check with this problem??
...bad ground...
...bad injectors...
What are good grounding points that i can make to insure GOOD ground???
he said that it chould be a grounding problem... can it?
also he chouldnt detect any pulses with any of the 3 computers that i gave him.
what are some things that i can check with this problem??
...bad ground...
...bad injectors...
What are good grounding points that i can make to insure GOOD ground???
06-12-06, 11:06 PM
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Originally Posted by J-Rat
All injectors run of a pulsewitdth from the ECU. What computer are you using to detect these pulses?
all i know about the computers is that there is a "326" on them, my mechanic is doing the pulse testing.
06-13-06, 09:28 AM
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Is he trying to measure duty cycle? With a multimeter? Should work fine if connected in parallel with the injector.
The ECU switches the injectors by grounding them. There are two black wires on the ECU that lead to a ring terminal on the vac spider on the top of the engine. Those wires are the ECU/injector grounds.
You can easily tell if the injectors are being triggered by just listening to them with a stethoscope.
The ECU switches the injectors by grounding them. There are two black wires on the ECU that lead to a ring terminal on the vac spider on the top of the engine. Those wires are the ECU/injector grounds.
You can easily tell if the injectors are being triggered by just listening to them with a stethoscope.
06-13-06, 09:45 AM
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Well yes, I did assume he was using a multimeter that is capable of measuring duty cycle. 
But then, maybe I'm starting to expect too much of people in my old age... 
But then, maybe I'm starting to expect too much of people in my old age...
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