Holley Commander 950 TBI injectors needed - Hot Rod Forum : Hotrodders Bulletin Board
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Old 05-01-2013, 07:06 PM
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Holley Commander 950 TBI injectors needed

I've had Holley's EFI running on my car for about 6 years, and have had zero issues until this season. I noticed the car was getting hard to start when warm, and found out that one of the secondary injectors were leaking after the car was shut off causing a slight flooding condition.
Holley wants over $100 for one injector, but I'm sure that there's an equivalent OEM replacement available somewhere. I can't see Holley manufacturing a unique injector for their Commander 950 kits.
My question is, does anyone know what other injector will work? It seems like the injectors they use are a GM TBI style, but there's many different ones. Thanks for any help.

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Old 05-02-2013, 06:17 AM
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popit out and see if there is a # on it.. if holley sourced it from the big three I doubt they removed the part #'s
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Old 05-02-2013, 07:52 AM
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Check with rceng.com they are expensive too.

I don't believe in this stuff, but you can try a injector rebuild/cleaning place. Like cruzin performance.com or the other type services. They come back with a injector spray data sheet to confirm the correction of a problem, with before and after pattern statistics. I have done it for others for piece of mind. The place I sent mine to was cheap , $10 or so. New screens, o rings, I think even winding repair?
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Old 05-02-2013, 08:17 AM
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when I had my projection 4.. I had to take the injectors and soak them in injector cleaner.. and it fixed the spray pattern/ sticking closed/leaking at the tip..
efi don't like to sit..

did the same thing with dads boat injectors.. but those sat for a few years..
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Old 05-02-2013, 11:46 AM
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Thanks Guys !!
I don't believe in "mechanics in a can" either, but I bought some good quality injector cleaner and figured I had nothing to lose. Unfortunately for me, I live in Canada, so sending my injectors out is out of the question!! The price and hassle in shipping outweighs the cost of just buying new ones. If the cleaner doesn't work, I will try and clean them myself because i have a small ultra-sonic cleaner here at home. So far, it looks like a 1995 Chevy G30 van with the 7.2 uses the same injectors, but I haven't been able to confirm the flow rate of them (pph@21 psi) I'll keep you posted !!
Dan
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Old 05-02-2013, 01:41 PM
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GM offered a "cop car" injector for TBI's that was a 65lb injector.I don't have the part number right in front of me.Sorry.
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Old 05-02-2013, 03:59 PM
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Well, I figured out the problem. Seems like the bottom O-ring on one of the injectors swelled and was failing. Because these are bottom-fed injectors, this allowed fuel to drip into the TBI . I changed all the O-rings, and the problem seems to be solved.
Dan
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Old 05-02-2013, 08:19 PM
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Great, and thanks for posting your findings.
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