Close
how to check the electrical going to the throttle position motor
2000 Lexus GS300

How to check the electrical going to the throttle position motor

(2000 Lexus GS300)
2000 Lexus GS300 w/ in-line six. first the code reader told me the o2 sensor on #1 bank upper sensor. I changed the sensor. that code cleared and a new one came up , #1 bank lean. i changed the MAF sensor. the code went away. then a new code shows up throttle position sensor. i change the sensor. new code accelerator sensor , changed that. new code speed sensor is bad, i changed both of them.
cleared that code, new code throttle control motor lock. i am getting a little frustrated.
car starts and runs for about 3 or 4 seconds at 750 rpm. then it starts choking off and the engine dies. pressing the accelerator did not help.
What seems to make the problem better or worse? car wont run long enough to tell
How long have you had this problem? 3 weeks
Tags: engine will not run, lexus, gs300
Ask a Question
2 answers & 0 comments
Popular Answer
on May 15, 2019

CLOSELY inspect throttle body butterfly for any restrictions - have helper depress accelerator - does butterfly respond?

‘ALL’ tubing MUST be in place and securely tightened for proper engine operations!!

This ‘especially’ includes the big rubber air tube to throttle body!!

Without *hands-on* inspection / evaluation - we can’t offer any more assistance.

See Alex’s answer.
Sign in to reply
General Diagnosis
$88 - $111 Learn More
on May 15, 2019

CLOSELY inspect throttle body butterfly for any restrictions - have helper depress accelerator - does butterfly respond?

‘ALL’ tubing MUST be in place and securely tightened for proper engine operations!!

This ‘especially’ includes the big rubber air tube to throttle body!!

Without *hands-on* inspection / evaluation - we can’t offer any more assistance.

See Alex’s answer.
Sign in to reply
on May 15, 2019
Check for vauum leaks. You may have a vacuum line or hose torn. Past that this will require a hands-on inspection with a quality scanner.
Use this link to find a good shop near you.
https://repairpal.com/repair-shops
Alex
Sign in to reply

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Sometimes it shifts fine but mostly bad shifts from 1st to 2nd (hard shifts) i have checked everything lock up...
In gear at a stop my 08 caliber vibrates a lot,it idled at around 500-600rpm, it tends to be worse when using...