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Dead Injector question

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Old Oct 2, 2009 | 09:41 AM
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Default Dead Injector question

I know the injectors are prone to going out.My question is if i have an injector failure and i can find which one it is can i plug in a new injector and drive the car home? I dont mean install the new injector on the spot ,just unplug the dead one and plug in a new one temporarily to get home on.
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Old Oct 2, 2009 | 09:50 AM
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Sorry, you wouldn't want to swap an injector "temporarily" in a L98. It requires more surgery than the LT1. If you're going to replace 1 you might as well replace all of them. Check the stickies in C4 Tech at the top of the page. Lots of info on injectors

Jim
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Old Oct 2, 2009 | 11:26 AM
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Just unplugging the bad one should allow the rest of that side to fire, not necessary to substitute a good one.
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Old Oct 2, 2009 | 12:39 PM
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I agree. but don't do anything. If you have a dead injector, it would be almost the same as pulling off a dead spark plug wire. it achieves nothing.
Just go home, get in your other car, go get gaskets and an injector, and take it apart and replace it.
Your computer doesn't care if you have 8 or 7 injectors, since they are all tied together on the same wires. 2-4-6-8 are on one fired wire, and 1-3-5-7 are on the other.
This is if you have an L98. LT-1 is different but the action would be the same plus check engine light

Last edited by coupeguy2001; Oct 2, 2009 at 12:41 PM.
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Old Oct 2, 2009 | 02:36 PM
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Why do you think your injectors are prone to failure?
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Old Oct 2, 2009 | 03:12 PM
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Originally Posted by aminnich
Why do you think your injectors are prone to failure?
The previous owner of my 91 model has replaced 2 injectors already.I see alot of talk about injectors on the board so i assume they are problematic.
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Old Oct 2, 2009 | 05:59 PM
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Originally Posted by coupeguy2001
If you have a dead injector, it would be almost the same as pulling off a dead spark plug wire. it achieves nothing.
Not true. If you have an injector or two shorting (low ohms), leaving them plugged in can overload the injector driver on that bank causing the remaining injectors on the bank not to fire. As toptech said, unplugging the bad one will cause an improvement in drivability if it's causing the whole bank to go down.
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