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Running too Rich! Need Help Please!!!!!

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  • #1

    Running too Rich! Need Help Please!!!!!

    Hi Guys!
    I have a 1997 Z28 with 93K miles on the clock!

    It is running with both left and right long term fuel maxed out.

    If I cap off the pipe that goes from the air filter to the air pump it will go down to 137 and 142. If I uncap it it goes back up!

    I have changed both Air Check Valves with new AC DELCO valves.

    It still does it. Now the air pump only runs 2 or 3 Mins when you first start the car up then stops. But air still gets sucked in after the airpump stops

    Does the air pump have an air check valve also in it?

    Thanks Lee!
    Lee Stroud in West Virginia
    Tags: None
  • #2
    Originally posted by LeeS97Z28

    Does the air pump have an air check valve also in it?

    Thanks Lee!
    Yes it does. There is a magnetic solonoid in the air pump that opens it when the pump runs.
    Tracy
    2002 C5 M6 Convertible
    1994 Z28 M6 Convertible
    Current Mods:
    SLP Ultra-Z functional ramair, SS Spoiler, STB, SFCs, Headers, Clutch, Bilstein Shocks, and TB Airfoil. 17x9 SS rims with Goodyear tires, 160F T-Stat, MSD Blaster Coil, Taylor wires, Hurst billet shifter, Borla catback with QTP e-cutout, Tuned PCM, 1LE Swaybars, 1LE driveshaft, ES bushings, White gauges, C5 front brakes, !CAGS, Bose/Soundstream audio, CST leather interior, synthetic fluids

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    • #3
      From Shoebox's website:

      http://shbox.com/1/air_pump_recall.jpg

      Has your car had the AIR pump recall done on it?
      Fred

      381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motor

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