injectors: ohm reading related to fuel flow?

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93Leg-c
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injectors: ohm reading related to fuel flow?

Post by 93Leg-c »

Would the ohm readings of a set of injectors give indication which injector flows more or less fuel?

For example, if one injector read 11.8 ohms and another had a reading of 11.5 ohms, would one injector flow more fuel than the other?

I wanted to know because if the ohm reading is an indicator of fuel flow, the highest flowing injector could be installed in cylinder 4, which runs hotter than the others.

I realize that fuel-flow testing is the best way of knowing exactly what each of the injectors flow but I thought this might be a "poor man's" way of getting the engine a bit more balanced.
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roundeye
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Post by roundeye »

in short, no. just differences in the coil impedance. injectors are on/ off, flow is determined by the internal port sizes.
magicmike
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Post by magicmike »

Injectors are just like a relay. the coil side is just activating a valve that is on the fuel side. Pretty basic and not related.
-Mike

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AWD_addict
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Post by AWD_addict »

I agree, there's only one useful flow characteristic you can measure like that. If an injector reads way over 12 ohms, it will not flow at all because the coil is bad. :P
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93Leg-c
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Post by 93Leg-c »

I thought I had posted a "thank you" for helping me out but I guess I didn't. So, here's a belated THANK YOU! for the posts, guys! I appreciate your help!
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93Leg-c
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Post by 93Leg-c »

AWD_addict wrote:I agree, there's only one useful flow characteristic you can measure like that. If an injector reads way over 12 ohms, it will not flow at all because the coil is bad. :P
So, if injector A reads 11.9 ohms and injector B reads 11.6 ohms, is injector B technically a "better" injector or perhaps one that will have the coil last longer?
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BSOD2600
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Post by BSOD2600 »

93Leg-c wrote:So, if injector A reads 11.9 ohms and injector B reads 11.6 ohms, is injector B technically a "better" injector or perhaps one that will have the coil last longer?
The FSM lists the specified resistance is 11-12 ohms, so they're both within specifications.

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