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2002 Toyota Sienna - Page 7 Questions & Answers
I have code po750
Possible causes
- Low transmission fluid level- Dirty transmission fluid- Faulty shift solenoid A valve- Shift solenoid A valve harness or connectors- Shift solenoid A valve circuit is open or shorted
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Tech notes
When the a transmission solenoid is malfunction, in most cases the
problem is not the electrical part of the solenoid; the problem is
foreign material obstructing the mechanical function of the solenoid or
the flow of the fluid through the transmission valve body. If the
transmission fluid is very dirty, it is recommend changing the
transmission fluid and if possible removing the transmission pan for
further diagnosis. Excessive debris or metal particles on the
transmission pan could be an indication that there is a transmission
mechanical failure and that the transmission will need to be rebuilt or
replaced.
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When is the code detected?The P0750 code is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.
What is ECU
The knock
sensor is commonly located on the engine block and essentially listens
for improper combustion when the engine is running. Engine knock, or
spark knock, is the noise created when the combustion process is erratic
or abnormal. Code p0330 indicates that the knock sensor has picked up a
frequency outside of the factory-set frequency range for the combustion
chamber. The computer uses information from the knock sensor to adjust
the engine ignition timing to keep combustion within the safe zone of
operation. In general, when the knock sensor code is set, the computer
will put the engine into limp mode to help prevent engine damage.
ECU= Engine Control Unit [The Cars Computer]
Will start and die
DO YOU HAVE ENOUGH FUEL IN THE FUEL TANK? IF YES CHECK WHETHER THE FUEL PUMP DO WORK. JUST SWITCH THE IGNITION ON AND LISTEN IF THE PUMP IS WORKING BY GIVING A " BZZZZ,,,, SOUND. IF NOT IS OBVIOUS THAT THE FUEL PUMP IS NOT WORKING. ASK AN EXPERT TO DO THE JOB FOR YOU AS IT IS A BIT COMPLICATED AND WORKING WITH A FLAMMABLE SUBSTANCE.
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