C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Fuel injectors

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Old Mar 9, 2024 | 06:35 PM
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Default Fuel injectors

Hey All,

Ive been working on a 93. Last time she was registered was 2012. runs rough when I start it up. The idle revs up and down and eventually stalls out. I checked the ohms on the fuel injectors and they are all reading in the mis 8's cold. From some reading ive done said should be much more. Advice? what should I do first?
Thanks in advance.
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Old Mar 9, 2024 | 07:14 PM
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Is it the same fuel in the tank since 2012?
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Old Mar 9, 2024 | 07:20 PM
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If the idle is going up and down, check the IAC. Also, while this is happening turn ac on to see if it changes. If it does, IAC is getting commands from ECM. If not, might be IAC. THey do go bad and will not throw a code.
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Old Mar 9, 2024 | 08:16 PM
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no, it was almost empty so I added fres gas and an additive to the tank
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Old Mar 9, 2024 | 08:17 PM
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I'll give that a try in the am, were in the middle of a jersey monsoon:/
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Old Mar 9, 2024 | 11:59 PM
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That resistance seems low. Typical injector resistance for the stock Multec fuel injectors should be 12-14 ohms.
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Old Mar 12, 2024 | 08:40 AM
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Do you have the service manual? Two books of repair and troubleshooting. If not pm me for i have a 93 and can reference for you.
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Old Mar 12, 2024 | 09:28 AM
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Correct, if you ohm those injectors they should be between 12-14. That is what my 93 injectors read.
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Old Mar 12, 2024 | 03:37 PM
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Srry, what's pm:/? Im online now trying to find a pdf download for the gm 93 service manual. Im reassembling the steering column as we speak. hoping that manual can give me some help.
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Old Mar 17, 2024 | 12:26 AM
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Srry, what's pm
PM = Private Message
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