how to check the electrical going to the throttle position motor
What is your question?
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 makes this problem better or worse?
car wont run long enough to tell
How long has your 2000 Lexus GS300 had this problem?
RepairPal Certified shops can diagnose and repair your 2000 Lexus GS300. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
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
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.
