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LEXUS IS220d SLUGGISH AND vsc and engine light on

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 98 lexus gs300 codes p1120 p1121

I wanted to start a thread specifically about failures within the throttle body concerning the GS300 (1998 in my case)

My symptons were:
VSC, VSC OFF, and ENGINE Lights would come on, followed by my car going into Limp Mode, where only that last 25% (if that) of the throttle would respond (basically have to floor the pedal to even move at all).

During the mornings, or when the engine was COLD, the throttle operated normal...then once the car warmed up, usually at about 10 mins, the problem would start...it happened intermitantly at first...1 or 2 days over the course of a week, then it became more consitent, until last week it became a daily problem.

The first part I tried was the Throttle Position sensor, which is on the front side of the throttle body, and the easiest thing to replace...this didnt help at all. $300 part from Lexus, $80 part from RockAuto.com (exacly same part toyota OEM)

THE PART THAT FIXED THE PROBLEM:
===========================================
"Idle Valve Motor", which is the larger electrical object next to the TPS on my 98 GS300. Problem is solved.

The Codes I got were P1120 and P1121 - Accelerator Sensor problem. However it wasnt really the Accelerator Sensor, it was indeed to actual electrical Motor that controls the opening of the Butterfly valve inside the Throttle body.

I found the problem by good old trouble shooting, and using an ohm meter to see if the throttle electric motor was getting elev, I found that the elec motor just to the left of the TPS was basically freaking out and shutting down. The Accelerator Pedal Sensor is on the Back-side of the throttle body where the throttle cable connects to, and has a spring on it. It was fine.

GS300's are indeed "drive by wire" concerning the throttle...the cable triggers the Accel Pedal Sensor, which sends a signal to the ECU, the ECU then sends power to the Idel Valve Elec Motor (next to the TPS), which opens and closes the mechanical butterfly valve, then the TPS sensor detects how far the elec motor is actually opening the butterfly valve...its a closed-loop feed-back system, meaning any failure in any sensor will cause the entire systm to fail.

The throttle cable apparently is ONLY there to allow the fail-safe of having that last 10-25% throttle when the electronic system fails...there is a gearbox inside the throtle body which allows the tail end of the throttle to manually engage the butterfly valve...the rest of the time, the butterfly valve is 100% opened and closed via the idle control motor.

Posted on Jul 08, 2009

  • 1 Answer

SOURCE: message reads 'check VSC' with engine light on?

if not a loose gas cap then what might be the problem

Posted on Oct 17, 2009

  • 430 Answers

SOURCE: TRAC OFF, VSC, and check engine lights are on in my 2004 Lexus ES

Often caused by a loose gas cap or fouled or failed air fuel O2 sensor. Check your gas cap is fully ratcheted, Drive a day or two. If lights don't clear you will need a code reader attached to the car to diagnose.

Posted on Dec 22, 2009

  • 430 Answers

SOURCE: when starting my lexus GX 470 the vsc off light

The VSC on TRAC off lights will come on when there is an air fuel related issue.
If you have recently filled your tank, unscrew and tighten the gas cap till it clicks. The lights may need to be reset if they stay on after that. They will also be triggered by a fouled O2 sensor ins the engine or exhaust as well as a sticky throttle valve.
If a dealership resets the lights they can attach a code reader under dash to determine the cause in about 5 minutes.

Posted on Jan 10, 2010

  • 1 Answer

SOURCE: lexus gs300 vsc check engine light gas pedal no acceleration

I have a a 99 gs 300, check engine light is on as well as the vsc light. What is that and needs to be to done to fix it.

Posted on Nov 02, 2010

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1 Answer

Why is my lexus rx300 vsc and engine light on?


Usually means there is a hard fault code in memory.
Go to your local Auto Zone and have the codes pulled and give them to me.

Master Tech Lee Auto Repair Help US

Sep 14, 2014 | Lexus RX 300 Cars & Trucks

1 Answer

Lexus gs300 vsc check engine light gas pedal no acceleration


I have a a 99 gs 300, check engine light is on as well as the vsc light. What is that and needs to be to done to fix it.

Feb 06, 2010 | 1999 Lexus Gs 300

1 Answer

I have a 2003 lexus gs 300..the check engine light came on and the VSC OFF traction control came on and it stays on...i tried to turn if off, but the light just stays on


vsc shuts down any time check engine light comes on. repair engine light problem, reset computer monitoring system and vsc light will go off. must scan computer to pull codes for check engine light and go from there.

Oct 02, 2009 | 2003 Lexus Gs 300

1 Answer

Lexus RX300 engine light n VSC light comes on


VSC means Vehicle Stability Control.

It comes on when the sensor send a signal that the vehicle is not stable on the ground.....check the wheel balancing and alignment and the air pressure of your tires too.

Good luck.

Rate this solution.

Aug 23, 2009 | 2002 Lexus RX 300

1 Answer

My 2001 Lexus LS430 was misfiring, riding rough,VSC light is on


go to auto zone, advanced autoparts, or a certified mechanic and ask if they can reset the codes, it should be free

Jun 17, 2009 | 2001 Lexus LS 430

1 Answer

VSC light and check engine light intermittently coming on. some time transmission fees sluggish too are these related> ls400 159K miles


Yes. Did you recently have the oil changed?Air Filter? Alot of techs accidentally disconnect hoses to Air Filter housing. Check hoses, Oxygen sensor could need replacement. Try reseting the sensor lights by disconnecting the negative (-) battery cable for 20 seconds then reconnect and start car. Lights should be reset. If they come back on take to dealer or to AutoZone where they can do a free analysis of engine codes

Jun 04, 2009 | 1993 Lexus Ls 400

2 Answers

VSC/ Check Engine Light


My 2000 Lexus GS 400 just had the VSC/VSC off light and the check engine light come on. I would have to push the accelarator peddle all the way down to get it to go. Took it to the Toyota dealer and the code pulled up as the Throttle Position Sensor was out. Purchased one and having it put in. Will update if this fixes the problem.

Feb 23, 2009 | 2003 Lexus Gs 300

1 Answer

2001 Lexus engine check light on VSC off light on


You can actually google this by putting lexus code ### for each one it will tell you what each one means

Jan 27, 2009 | 2004 Lexus LS 430

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