HOW COME MY THROTTLE BODY IS STUCK IN A OPEN POSITION

1993 Lexus GS 300

Tiny

terrell brandon

September, 22, 2011 AT 9:49 AM

I just post a question about my car idling problems come to find out my throttle body is stuck in the open position. Now what to do.I tryed to clean it still won't close

12 Answers

Tiny

mhpautos

September, 22, 2011 AT 10:03 AM

IS this fully open or just part open? Also I can't access my data base just now, so can you advise if cable throttle or drive by wire, I am thinking it will be cable, just want to be sure.

Tiny

terrell brandon

September, 22, 2011 AT 10:26 AM

Yes fully open their are two cables I can give it gas

Tiny

mhpautos

September, 22, 2011 AT 12:01 PM

Have you unhooked the cables and see if the throttle sets back to idle? If so one of the cables will be sticking if not the throttle body will be the problem and possibly the TPI sensor may be stuck.

Tiny

terrell brandon

September, 22, 2011 AT 12:16 PM

When I turn the key to the on position moves but won't close

Tiny

mhpautos

September, 22, 2011 AT 12:19 PM

I will have to have a read up on the system, I will post what I find.

Tiny

terrell brandon

September, 22, 2011 AT 12:22 PM

Thank you

Tiny

mhpautos

September, 22, 2011 AT 12:33 PM

The throttle opener is not adjustable, notes say the throttle body should be replaced, see pic for this from Mitchell 1, I would still get a mechanic to check this first hand to confirm the diagnosis.

Tiny

KHLow2008

September, 22, 2011 AT 4:06 PM

Is it the IAC or throttle plate you are referring to?

Tiny

terrell brandon

September, 22, 2011 AT 4:31 PM

The flap in the front.

Tiny

KHLow2008

September, 22, 2011 AT 4:39 PM

Actually the flap would not close until the engine is started. During key on, this is normal. If the throttle plate is fully opened, the engine would be screaming when started as the throttle is fully opened.

I did not see your first question, what is the exact problem you are facing?

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