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S5 injector in S4

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Old 01-18-04, 08:35 PM
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dip
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S5 injector in S4

will Series 5 550 injectors fit and work in a series 4 13b turbo?
Old 01-18-04, 11:27 PM
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Yup.
Depending on what year your car is though- if it is pre 87 1/2, you will have to bypass the fuel injector resistor pack, up in the front passenger corner of the engine compartment.
REALLY easy, just jumper the wires across.
You can do a search for "injectors" "impedence" and/or "resistor pack" and the like, on here to find out exactly how to do it.

This is because the 87 injectors were low impedance, and used a speerate resistor pack to up the impedance. The 87+ injectors are high impedence as they are- no need for the pack.
Old 01-19-04, 12:09 AM
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They will work if you change plugs and have the correct or corrected impedence (just as Bambam7 said).
Old 01-19-04, 09:46 AM
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Oh ya.. forgot about the plugs...
They are very common fuel injector plugs.. got a harness that I took the plugs for mine from a junkyard T-bird I think...
Old 01-19-04, 10:16 AM
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how many cc's are those t-bird injectors?
Old 01-19-04, 07:26 PM
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I took the plugs, not the injectors.
I don't know.
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