Question about 1996 BMW Z3 Roadster

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System Monitors Not Ready

While going thru Vehicle Emission test,
OBD System Check showed the following results in the Report.
Catalytic Convertor Eff. : Not Ready
Evaporative Control System : Not Ready
Heated Oxygrn Sensor : Not Ready
Oxygen Sensor : Not Ready

I was told, that I need to run the Car for some time and the Memory of Car will be Restored OR I should show to mechanic to fix this problem.

I showed to Mechanic but as per him, they can not fix this problem!!!!

Now, what shopuld I do, because the License Plate Sticker is expiring this month.

Please Help,

Jim Mehta

Posted by on

6 Suggested Answers

  • 65 Answers

SOURCE: EMISSIONS INSPECTION FAILED

you can try this unplug the batt. from ground. let it set for 30min.put it back but still you need to replace the main pproblems if this dont work

Posted on Feb 26, 2009

chuck943
  • 783 Answers

SOURCE: what P0453-Evaporative Emission control System Pressure Sensor h

P0453 is for the fuel tank pressure sensor. This code means that the voltage on the sensor was greater than 4.5V during key on engine off or during any engine operating mode.
Normal voltage from this sensor with no vacuum or pressure on the system should be 2.37 to 2.97V.
PCM sends a reference voltage of 5V to the sensor and tells if there is pressure or vacuum in the fuel tank by the voltage that returns from the sensor.

Possible causes are:

  • FTP circuit open
  • VREF shorted to VPWR
  • Damaged PCM
  • FTP circuit shorted to VREF or VPWR
  • SIG RTN circuit open
  • Damaged FTP sensor

  • Usually it is a loose connector at the sensor or a bad sensor.
    It mounts on top of the fuel tank,has a 3 wire connector. To replace it you have to push down on it and twist,if I remember right CC.

    Posted on Mar 10, 2009

    • 1 Answer

    SOURCE: EMISSIONS INSPECTION FAILED

    This just means that the OBD was reset recently and the car hasnt been driven enough for readings to be given by the OBDII. Just drive the car a while, and then all should be READY. After any OBDII reset, the car must go through a certain number of "Drive Cycles" before the OBDII will emit any readings. Refer to the manufacturer to find out exactly how many, and how to complete them.

    Posted on Apr 22, 2009

    • 202 Answers

    SOURCE: 1999 lincoln navigator obd code p0455

    Either the fuel cap, or the evap solenoid on the charcoal canister. I'd start with the fuel cap.

    Posted on May 27, 2009

    motor1258
    • 6674 Answers

    SOURCE: OBD codes 442 & 455

    Check all of your EVAP lines and the charcoal canister. Also check the lines and overflow line from the gas cap to the gas tank.

    Posted on Jun 12, 2009

    • 7147 Answers

    SOURCE: Evaporative Emission System codes

    check ur gas cap for tight and proper seal that is the most common problem for the the evap codes if cap is good check fuel and vent lines for damage or leaks from gas cap under vehicle up to engine compartment

    Posted on Oct 18, 2009

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    12_18_2011_2_25_33_pm.jpg


    12_18_2011_2_26_23_pm.jpg

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    P0171


    Ho Joanne:
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