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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Injector confusion

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Old Jul 26, 2010 | 04:03 AM
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Default Injector confusion
Long story short, I changed my clogged injectors and replaced them with the same oem injectors. Now the car idles at 500 rpms when I pull it out of gear but doesn't die. Tap the gas, it'll rev then idle at 900 like normal. Anyone have ideas as to why, or how to fix it?
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Old Jul 26, 2010 | 04:44 AM
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Originally Posted by ale76051
Long story short, I changed my clogged injectors and replaced them with the same oem injectors. Now the car idles at 500 rpms when I pull it out of gear but doesn't die. Tap the gas, it'll rev then idle at 900 like normal. Anyone have ideas as to why, or how to fix it?
Why are you running stock 24lb injectors on a H/C LT1? Or is this on another car?
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Old Jul 26, 2010 | 06:53 AM
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+1 - CC503 + LE2 Heads = Why the heck? However, the problem probably lies with your IAC. Can you log the car with datamaster? It will help to see what the IAC counts are at and if your IAC motor is functioning. You might wanna try the reset procedure on your IAC to see if this helps.
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Old Jul 26, 2010 | 12:54 PM
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Shop that dynoed it never told me what the duty cycles were on the injectors so I thought I was alright. But what size should I be at?
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Old Jul 26, 2010 | 12:58 PM
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Originally Posted by ale76051
Shop that dynoed it never told me what the duty cycles were on the injectors so I thought I was alright. But what size should I be at?
If you truly are pushing that much power to the wheels (same car as your sig?) I'd say those things are at 100% most of time. I'd go with a minimum of SVO 30's and maybe a tad bigger.

Gonna have to have it reprogramed when ur done.
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Old Jul 26, 2010 | 01:07 PM
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SVO redtop minimum, greentop maximum. Anything you find in between will work as well.
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Old Jul 26, 2010 | 01:21 PM
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Ok thanks
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