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Injector Resistance?

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Old Jul 29, 2008 | 04:01 PM
  #1  
boldguy's Avatar
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From: Cali
Car: 1992 Z28
Engine: 350 TPI
Transmission: World Class T-5 5speed manual Trans
Axle/Gears: STOCK G92 performance 3.42
Injector Resistance?

So i measured the resistance on all 8 of my injectors and found the following:


Injector# Resistance in Ohms
1 17.1

2 16.8

3 16.8

4 17.1

5 16.8

6 16.8

7 16.8

8 16.8

I know the previous owner said something about swapping out for bigger injectors.
The questions are:

Could this be a problem having that variance on 1 & 4???
Are these values around the normal range?
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Old Jul 30, 2008 | 08:03 AM
  #2  
RBob's Avatar
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: Injector Resistance?

For Multec's they are in the proper range. Which is about 16 ohms (plus the DVM lead resistance). You may want to pull some numbers off of an injector and find out what they really are.

RBob.
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Old Jul 30, 2008 | 08:07 AM
  #3  
shingadaddy's Avatar
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From: Oklahoma
Car: 91 Z.
Engine: 5.7 TPI
Re: Injector Resistance?

Manual says 10 ohms or more. Mine new ones all measure around 16. I wouldn't be concerned with the values you have. They appear to be good to me. My old ones that were still good were 16.5 or so. The ones I considered "BAD" were 12, 7.5, and 2 at 5 ohms. These low-value ones load the injector driver so much that it can't control the other injectors for good mixture control.
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Old Jul 30, 2008 | 09:33 AM
  #4  
boldguy's Avatar
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Joined: Jul 2006
Posts: 246
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From: Cali
Car: 1992 Z28
Engine: 350 TPI
Transmission: World Class T-5 5speed manual Trans
Axle/Gears: STOCK G92 performance 3.42
Re: Injector Resistance?

Thanks for the quick replies!
so once i pull the number where do i look for it on the internet? Is there a site or do i just search it?

And last time i pulled the number off of the shoulder and there were (if memory serves) 3 groups of numbers...
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