Thread: Fuel Injectors
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Old 04-22-2019, 10:57 PM
Tech II Tech II is offline
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Re: Fuel Injectors

Yes you want all injectors with the same flow rate.....you can still have problems even if you replace several with the right numbers.....even though they are all rated at the same flow rate, the new ones could put out more than the "old" ones......

I ran into this on an old tuned port Firebird V8 engine.....guy came in with an engine idling bad.....I tried everything to no avail.....and then I noticed a couple of his injectors looked very clean at the base(whole top of his engine was dirty)....asked him about it and he said another garage put several in.....

Luckily, we had special GM tools to measure flow rates, and his injectors were all over the place, spec wise.....I told him, his best bet was to replace all 8 of them, with the correct GM #......

He agreed with me, and that turned out to fix the problem......
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