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Old 10-14-2013, 05:15 PM   #1
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how to install fuel injectors

Just need a quick run down on how to install new injectors. Thanks guys.
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Old 10-14-2013, 10:04 PM   #2
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With the car off, push in the Schrader valve on the fuel lines with a rag to let off the fuel pressure (collect fuel in rag to keep from going all over your engine bay). Then unbolt the fuel rails (and remove anything that might be in the way) and gently pry it off the manifold. You may have some injectors that come with the rail, and others that stay in the intake. Just make sure you get all the old "O" rings out before you intall the new injectors. Then make sure the new injectors seat properly in the fuel rails and intake before you tighten it back down. Some say you should lube the new "O" rings before install to make it easier. Install any other parts you May have taken off. Once done under the hood, cycle the key to the on position, and leave for a couple of seconds and turn off; but don't start the car. Your priming the fuel pump to put pressure in the lines. You should do this maybe 2-3 times if that. Check the lines under the hood for any leaks.
If none, start her up!

NOTE: If you're going with different injectors than what you currently have installed, you will need to have your MAF calibrated for the new injector size.
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Old 10-14-2013, 10:06 PM   #3
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Thanks rogue. I figured it out by messing around haha! For the S197, here is no Schrader valve also, the injectors don't just stick in the rail and the port, it is held in the fuel rail by a metal clip that is a total PITA to get out and back on without a fuel injector tool, but i digress. Doesnt take much to do!
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Old 10-14-2013, 10:08 PM   #4
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It's fairly simple I replaced my rails I needed to rent the tool to get the rails off the main line an got a tune from bama to suffice for the new higher # injectors
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Old 10-14-2013, 10:08 PM   #5
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Ahh ok, good to know! I was drawing on my experience with old 5.0's, and 2V 4.6's lol
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Old 10-14-2013, 10:09 PM   #6
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Quote:
Originally Posted by Roguestang View Post
Ahh ok, good to know! I was drawing on my experience with old 5.0's, and 2V 4.6's lol
I thought so haha! Thanks though!
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Old 10-15-2013, 08:29 AM   #7
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No prob!
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Old 10-15-2013, 09:02 AM   #8
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-pull the fuel pump relay
-start the car and it will stall out, the pressure is now relieved
-unplug all 8 injectors electrical connectors
-remove the two bolts, 8mm I think, on each side
-pull passenger side rail straight up and they pop out, still in the rail
-lay a towel on he drivers side between fender and valve cover
-pull the drivers rail straight up and they pop out, still in the rail
-take both rail upside down and lay on towel on drivers side
-you DO NOT have to disconnect the line or separate the rails
-pull clips and pull injectors out
-install new injectors, lube new orings with a lubricant as not to tear them during install
-reverse steps to install
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