Injector voltage
#5
rotorhead
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The resistor reduces the current, not the voltage. Voltage equals current multiplied by resistance, or V=IR (Ohm's Law) . so with a higher resistance we need less current to maintain the same voltage. Factory injectors are somewhere around 2 ohm resistance plus the 6 ohm resistor pack, for a total of 8 ohm. The voltage stays constant, it is the current that is reduced.
V=IR ---> I=V/R . With the V staying constant, increase the "R" and the "I" (current) goes down. Here is a semi-accurate analogy: if you want 12psi of water pressure (pressure is similar in some ways to voltage) in a pipe, a lot less water volume (current) is needed in a smaller pipe (higher resistance).
Getting back to cars: the magnet (aka coil) in the injector can only handle so much current, and the injector driver transistors in the ECU can only handle so much power. Power is a function of current, P=I^2*R or Joule's Law.
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the N326 like to see HI impedance.(resistance) .so If you have LO impedance injectors they must have a resistor pack on the harness(located under the air box,a silver looking little attachment with a BIG plug on it).
You can run HI impedance injectors IF you splice the resistor pak so that the Resistors are Bypassed,or Use the harness from a Car around that year that does NOT have the Plug for the resistor pack.
You can run HI impedance injectors IF you splice the resistor pak so that the Resistors are Bypassed,or Use the harness from a Car around that year that does NOT have the Plug for the resistor pack.
#11
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^ +1
Judging from your recent threads, you're having some sort of fuel supply issue:
https://www.rx7club.com/search.php?searchid=7619099
Let us know what's going on overall, and we'll go from there. We need to know, for example, if 12V is even making its way past the relays, etc.
Judging from your recent threads, you're having some sort of fuel supply issue:
https://www.rx7club.com/search.php?searchid=7619099
Let us know what's going on overall, and we'll go from there. We need to know, for example, if 12V is even making its way past the relays, etc.
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^ +1
Judging from your recent threads, you're having some sort of fuel supply issue:
https://www.rx7club.com/search.php?searchid=7619099
Let us know what's going on overall, and we'll go from there. We need to know, for example, if 12V is even making its way past the relays, etc.
Judging from your recent threads, you're having some sort of fuel supply issue:
https://www.rx7club.com/search.php?searchid=7619099
Let us know what's going on overall, and we'll go from there. We need to know, for example, if 12V is even making its way past the relays, etc.
#14
1308ccs of awesome
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and I'm pretty sure you'll always have 12V to the injector. the ECU is in charge of grounding that 12V. It might be an ECU problem/ problem between the ECU and the injectors.
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