Question about 1996 BMW Z3 Roadster
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.
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Posted on Jan 02, 2017
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
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:
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
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
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A service technician will
turn off the dashboard "check engine" light after most repairs. This
resets the vehicle's emission system components to "not ready". The
status remains "not ready" until the vehicle's computer has had adequate
time to review the repaired component. This happens after the vehicle
is driven for a period of time established by the manufacturer.
If the vehicle's emissions system status is "not ready" when it is presented at the E-Check station during the initial test cycle,
a tailpipe emissions test may be conducted. If the vehicle is
transferred to another test type, the vehicle must remain on the
different test track until the vehicle passes the emissions test or
receives a waiver. For example, if the vehicle undergoes an OBD II test
and fails, it cannot be downgraded to a tailpipe test on a re-test; the
vehicle must pass the OBD II test.
For initial and subsequent tests, if a dashboard light is on when the vehicle is presented at the E-Check station, the vehicle will fail the test.
How can the vehicle status be made ready?
When a vehicle is driven through its normal drive cycle, the computer reviews the emission control
system and if the vehicle was properly repaired, the system resets itself to ready. A normal drive
cycle includes operation at both cruising speeds and in stop-and-go traffic for up to a couple
weeks. This process should be followed before bringing the vehicle in to be tested.
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