LEXUS RX 300 SENSOR PROBLEM
2000 Lexus RX 300 • 12,054 miles
I have 2000 lexus it have coders one is P1349 intake camshaft position c m p system where is the camshaft sensor location i replace crankshaft sensor and the timing belt i also have codes P0300 P0301 P0303 P0305 and P1130 can u tell me what each one mean the car have a small putting sound and if you can send me a picture of the camshaft sensor
February 23, 2013.
February 23, 2013.
OBD II scan tool (excluding LEXUS hand-held tester)
•If DTC P1349 is displayed, check right bank VVT system circuit.
•Read freeze frame data using LEXUS hand-held tester or OBD II scan tool. Because freeze frame records the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel ratio lean or rich, etc. at the time of the malfunction.
did this happen after the timing belt replacement>?? if it did, re check your timing marks. you may be off 1 tooth
otherwise, this code comes from sludge in the oil system not allowing timing adjustments. the oil system would have to be completely flushed of all sludge , the valve replaced and cross your fingers that it will work.
the 300 is a random missfire with all the others, this will come up. the 301, 303, 305 are missfires on the same bank as the 1349.
I would look to resolve the 1349 first, the others may go away once resolved.
1130 is a air/fuel ratio sensor
To obtain a high purification rate for the CO, HC and NOx components of the exhaust gas, a three-way catalytic converter is used, but for the most efficient use of the three-way catalytic converter, the air-fuel ratio must be precisely controlled so that it is always close to the stoichiometric air-fuel ratio.
The A/F sensor has the characteristic that provides output voltage* approximately proportional to the existing air-fuel ratio. The A/F sensor output voltage* is used to provide feedback for the ECM to control the air- fuel ratio.
By the A/F sensor output, the ECM can determine the deviation amount from the stoichiometric air-fuel ratio and control the proper injection time immediately. If the A/F sensor is malfunctioning, ECM is unable to perform accurate air-fuel ratio control.
The A/F sensor is equipped with a heater which heats the zirconia element. The heater is controlled by the ECM. When the intake air volume is low (the Temperature of the exhaust gas is low), current flows to the heater to heat the sensor for accurate oxygen concentration detection.
*: The voltage value changes at the inside of the ECM only.
Feb 23, 2013.
Feb 23, 2013.
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