Question about 1998 Lexus Gs 300

Open Question

Replace 2001 lexus gs300 servo - 1998 Lexus Gs 300

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

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

ZJLimited
  • 17970 Answers

SOURCE: HOW TO REPLACE 100A FUSE ON 1994 LEXUS GS300

The 100 Amp alternator fuse is blown under the hood in the fuse block, it has a clear plastic cover on it for inspection, the designation is marked inside the fuse panel. This fuse is bolted in inside the fuse box, the fuse box has to be removed and opened to get to the bolts that connect the fuse in.

Here you have the Lexus-GS-300-Wiring-Diagram-Manual

Good luck (remember rated this help).

Posted on Dec 01, 2009

  • 7 Answers

SOURCE: how to replace fuel filter on 1994 lexus gs300

you first find the fuel pump fuse then allow to run the engine then remove the fuel pump pressure fuse, immediately engine will stop, this is to reduce the fuel pressure in fuel lines, jack up the vehicle fuel filter is located under the car just infront of rear side driver tire remove the old one and fix the new.

Posted on Dec 14, 2009

  • 179 Answers

SOURCE: 2001 lexus gs300 ,heat comes out drivers side

your blend door on your passenger side is most likely stuck in the cold position. Chances are you cable is broken. Good luck.

Posted on Dec 30, 2009

Testimonial: "thanks,"

  • 973 Answers

SOURCE: WHAT IS CODE P0715 ON A 2001 LEXUS GS300

P0715 Input/Turbine Speed Sensor Circuit Malfunction

It seems that you may have a problem with your sensor on or in your transmission.

Posted on Jun 03, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do I remove headlight assembly on a 1993 gs300


The Lexus GS300 is a midsized luxury sports sedanicon1.png made by the Lexus arm of Toyota. While the vehicle is designed with a good fit and finish, the components are not indestructible. If the headlight on your Lexus GS300 needs to be replaced, you can purchase replacement parts from a Lexus dealer or from most auto parts stores. Unlike most vehicles, it is not obvious just by looking at it how to remove the headlight, so you will need to know the proper procedure to avoid damaging the headlight assembly

Sep 28, 2014 | Cars & Trucks

1 Answer

2001 Lexus GS300 won't start (makes a continuous


A mechanic would check for voltage at the battery, the starter, the neutral safety switch, and the key switch.

Aug 04, 2012 | Cars & Trucks

1 Answer

Where is the cig lighter fuse on a 2006 lexus gs300


i have lexus gs300 2005 i get problm i cant find fues for lihgter if any one can heelp me thank for evry one

Sep 05, 2011 | 2007 Lexus GS300

1 Answer

How do I replace cracked passenger side fog lens on 2001 Lexus GS300 with HID? I'm not sure how to access the lens and replace it. Is it best to replace both sides to have the same balance of light?


change both ?? you sure never heard of this before unless its over zealous owner who keeps reading these so called specialist car mags ,think you have to change the whole light though

Jul 24, 2010 | Lexus GS 300 Cars & Trucks

1 Answer

2001 lexus gs300 a/c only blows threw the floor vents


Kansky, Did anyone ever answer your question??

Jun 12, 2010 | 2001 Lexus Gs 300

1 Answer

WHAT IS CODE P0715 ON A 2001 LEXUS GS300


P0715 Input/Turbine Speed Sensor Circuit Malfunction

It seems that you may have a problem with your sensor on or in your transmission.

Jun 03, 2010 | 2001 Lexus Gs 300

1 Answer

2001 lexus gs300 ,heat comes out drivers side vents only. passenger side cold air only, car has dual controls but acts like heat flapper not opening


your blend door on your passenger side is most likely stuck in the cold position. Chances are you cable is broken. Good luck.

Dec 30, 2009 | 2001 Lexus Gs 300

1 Answer

2001 Lexus GS300 with an electrical problem


sounds like you may possibly have moisture in your fuse box in car.or a pin fit connection problem.

Apr 24, 2009 | 2001 Lexus Gs 300

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

26 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lexus Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

ROBERT GARCIA
ROBERT GARCIA

Level 3 Expert

874 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Are you a Lexus Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...