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Throttle body plate will not open, when i push the

accelerator with the ignition on...
Throttle body plate will not open, when i push the accelerator with the ignition on and in neutral
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Answered in 14 minutes by:
11/24/2017
Chris (aka - Moose)
Category: Lexus
Satisfied Customers: 49,406
Experience: 16 years of experience
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Will the car start, will the car idle?

Do you know if there are codes stored?

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Customer reply replied 21 days ago
The car starts and idles, once it gets to operating temperature it idles rough and when i drive it i get codes p0172, p0175 and it overheats sometimes. I think the problem is the throttle body because it won't open when the engine is off, and ignition is on, or the ecu needs a software update

These symptoms are not a sign of throttle body issues.

Overheating, have you done a compression test to see if there is a head gasket failure, have you checked/tested the thermostat or replaced it, have you inspected the water pump, is the cooling fan working correct?

Your codes are for running to rich. On this model that is caused most of the time by high fuel pressure, clogged air filter, worn spark plugs, dirty MAF sensor.

Here are the tests for these codes. https://www.dropbox.com/s/b0enykwz3slzeyp/172.pdf?dl=0

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Now that I have posted a partial or complete answer, you will see you can rate me. The deposit you have already paid is not transferred to me until you rate me. I would like to receive nothing less than 5 star excellent ratings. So if we are not there yet, please reply and let me help more. If you're not pleased, let me know because rating bad does not result in a refund, there are better options. Rating now will not close this post nor prevent replying. Thanks Chris

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Customer reply replied 21 days ago
I have replaced both head gaskets, water pump, thermostat, engine coolant temperature sensor, radiator intake manifold gaskets both upper and lower, maf sensor, fuel injectors, exhaust manifold gasket, air filter, spark plugs. The compression test on all cylinders are good. The cooling fans also work.

Did you go through all of the steps in the tests I sent?

Chris (aka - Moose)
Category: Lexus
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Experience: 16 years of experience
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