P0001 Fuel Volume Regulator Control Circuit/Open The
above code is about an oxygen sensor code for the heater
circuit located in bank 1 sensor 1. (bank 1 is at exhaust
manifold by the #1 cylinder head, bank 2 is on the 2nd
cylinder head. On some engines, both exhaust manifolds
could have one oxygen sensor each side and the 2nd cylinder
head will have the sensor 2). On the oxygen sensor itself,
it has 4 wires which are color coded. Two of wires are
for the heater circuit that heats the oxygen sensor to
make it reach optimum operation quickly. Those 2 oxygen
sensor heater wires could be shorted between the sensor
and the ecm (engine computer) or other engine components.
The
common fix for this code is to check the integrity of
the heater wires. Check the wires for insulation and routing
which could be loose or touching a hot exhaust that can
short the wires. If the engine has too many miles, it
is possible that the heater circuit inside is worn and
shorted which needs a replacement of the oxygen sensor.
If you have a DVOM, you can also test the continuity of
the heater wires from the oxygen sensor to your computer
pins.
More detailed fixes will be provided as soon as you give
the symptoms of the obd2 trouble code. ATS will provide
the wiring diagram so you can trace the color coded wires.
Use an obd2 code reader or scanner so you can access this
obd2 trouble code. When you have this obd2 code list,
use it as a reference and give the code to ATS. We will
then send you all the possible fixes for the obd2 trouble
code. ATS has lots of fixes for obd2 gm codes, obd2 ford
codes, dodge obd2 codes and all obd2 import codes such
as Toyota obd2 codes, Honda obd2 codes, Nissan obd2 codes,
etc. All fixes for this obd2 codes are guaranteed or your
money back.
Important
TIPS about Oxygen sensor:
The
oxygen sensor content of the exhaust gas indicates when
the engine mixture is operating lean or rich. When the
oxygen sensor detects that the engine is operating rich,
the signal voltage is high, and any decreases in the signal
voltage means the engine running is lean. The engine computer
supplies a reference voltage like one volt or five volts,
and then shows the change in the sensor return voltage
as the sensor's resistance is changing. If you have connected
everything properly, when you crank the engine, you should
see the check engine light coming out.
Unheated
oxygen sensors rely on the heat of the exhaust gases to
reach the working temperature, therefore they might start
to cool down while the engine is idling and revert back
to a default air-fuel ratio setting. This type of sensor
usually has a single wire connector, though others have
two. Unlike the fuel pump relay, the 02 sensor heater
circuits have a separate fuse for each sensor and grounds,
which are controlled by the engine computer.
To
read a voltage across the heater, one side must be connected
to (+) and one side must be connected to (-), which is
accomplished by the computer or a transistor. It can read
12V between each wire and a separate ground if it was
connected to positive and the other was not yet connected
to ground connection (for details, please contact ATS).after you replace oxygen sensor you have to drive for so many miles before it resets its sef
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