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2000 firebird formula

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Old 08-03-2020 | 06:24 PM
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Default 2000 firebird formula

HELLO , GREETING ALL. IM UTTERLY BAFFLED. I REPLACED ALL 4 O2 SENSORS AND NOW! BOTH SENSOR REAR O2 SENSORS ARE READING LOW VOLTAGE.
Old 08-04-2020 | 12:25 PM
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What were they doing before you replaced them, why did you replace them, and what part numbers did you use?
Old 08-26-2020 | 05:51 PM
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okay, lol so i had to test fuel pressure and due to my findings i was only producing 25 psi then dropped to 10 which is too too low with key on and key off and 25 ps1 with engine running so i narrowed it down to fuel pump and fuel injection pressure regulator or maybe to much trash in line. .




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