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Where is the purge valve located

I need to change the purge valve on my 2003 lexus gs300,because my vsc light/check engine light is on

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Posted on Jan 02, 2017

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  • 77 Answers

SOURCE: where is the purge valve located on a 2004 honda LX?

It is with a 2 wire Black connect located next to the throttle body. Locate the green cap on the evap hose and follow it to the throttle body and that is the purge valve.

Posted on May 17, 2009

  • 236 Answers

SOURCE: 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

Posted on Jun 17, 2009

  • 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

  • 3741 Answers

SOURCE: 2007 lexus rx350 ,vsc light on and check engine light is flashing

First check and make sure your gas cap is tight, if this does not resolve the problem read below.
A vacuum hose has become disconnected, more than likely due to having your air filter replaced. The VSC and Check engine light typically don't come on until after 150-200 miles after the vacuum hose was pulled out.
The fix: on the right-hand-side of the engine compartment behind the big plastic housing that holds the air filter you will find a black rubber hose that is not connected to anything. Squeeze the finger clamp on the hose and slide the hose back onto the half inch nipple on the back of the air filter's plastic housing.
In order for the VSC and Check engine light to be turned off, you will need to open the fuse box, right-side of the engine compartment, and pull the 20 amp EFI fuse for 10 seconds. This will reset the system. The fuse location is marked on the lid of the fuse box, also I believe the EFI fuse is the only 20 amp fuse
. This will help. Thanks, please keep updated. please do rate the solution positively .thank you for using fixya


Posted on Dec 29, 2009

  • 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

Replace purge valve on my 2003 lexus gs300


The purge valve is mounted in the engine compartment, probably on the firewall. It is held on by two bolts. It has an electrical connector and two vacuum hoses and looks like the pic below. . Release the connector and unscrew the two bolts. Move the vacuum lines from the old valve to the new one. Bolt the new valve down and connect the wiring harness.

download (10)-khhlhgabxhi45qdlqmlsiuhd-5-0.jpg

Oct 30, 2017 | Lexus GS 300 Cars & Trucks

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Low Fuel Pressure


when check engine light comes on VSC is disabled. small leak is for evaporative system (to prevent fuel vapors from entering the atmosphere) small leak is A leak less than forty thousandths of an inch, it could possibly be a gas cap not fully tightened,leak in a vapor line,leaking fuel filler neck,gas tank leak,purge valve,vent valve just to name afew. clearing code will turn off both lights but if theres a leak lights will come back on.

Apr 05, 2013 | Cars & Trucks

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Vsc/Vsc off check engine light 99 gs300


ask a parts store to read your trouble codes for free and that will tell u whats wrong

Mar 25, 2013 | 2001 Lexus Gs 300

1 Answer

Vsc/vsc off check engine light gs300


go get your codes read. sounds like possible misfire due to lack of power. call around alot of places read codes for free then you can start there.

Jul 18, 2012 | 2001 Lexus Gs 300

1 Answer

2003 Lexus GS300 P0031 code


Yes the O2 sensor preheater problem will turn on the VSC light, see the complaint often, why? don't know
.P0031 TOYOTA - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1
In most cases the O2 being replaced cures the code but here is the full story.
Possible causes- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit open shorted to ground
- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection
- Faulty Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit
- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit fuse
- Faulty Engine Control Module (ECM)

Jun 16, 2012 | 2003 Lexus Gs 300

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

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

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