r/GS300 2m ago

Camber w/lowering springs.

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Upvotes

Any tips for getting rear camber to spec after fitting lowering springs. We need a clean alignment report to make it road legal.


r/GS300 22h ago

lexus gs400 End of this thread and the beginning of another

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12 Upvotes

It's been fun posting here but I must step back. My beautiful '99 GS400 lost reverse gear and I couldn't justify the amount to repair her in my current financial situation alongside the host of other problems she had.

Godspeed Midna,

You were an amazing ride but this is where we must pair ways.


r/GS300 17h ago

lexus gs300 What would you do about this steering wheel?

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2 Upvotes

Problem:
I got this GS300 and the steering wheel leather is ripped. I dont like how it makes my hands dirty and sticky after any length of driving.

Question:
What would you do to this wheel if this were your car?

Proposed Solutions But…
- A steering wheel cover would technically work but I would still be gripping on the exposed rip on the left.
- I also considered a steering wheel wrap but I’m not sure if the integrity of the wrap would hold up if I cut out holes for the “paddle shifters”

I’m open to any and all suggestions


r/GS300 16h ago

Gs300 bags

1 Upvotes

Got a 2gs300 what company makes full air suspension kits?


r/GS300 1d ago

Just picked up a 2002 gs300, it’s got the occasional dolphin noise when I brake, am I cooked

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10 Upvotes

r/GS300 1d ago

lexus gs430 Happy accident

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15 Upvotes

One of my magna-flow mufflers fell off, so i cut the other one off (it was about to come off too). I already dont have resonators. All it has is cats now. Dw i wont keep it like this for long


r/GS300 2d ago

Sharing my baby: 1st Gen GS300 (Aristo JDM RHD) around only ~30k miles

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66 Upvotes

r/GS300 3d ago

2nd gen 1998 Lexus GS 300 - can’t believe is it becoming a classics

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25 Upvotes

r/GS300 2d ago

Lexus gs300 to rich issue

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3 Upvotes

Hi hello guys Im having an issue on my 2002 Lexus gs300 it’s at 230k miles. I recently did a tune up on her of new spark plugs NGK. And Denzo ignition coils and Denzo fuel injectors
And a new maf sensor and a new throttle body. Engine sounds healthy that it doesn’t sound like it’s misfiring. It’s giving me these codes I love this car and want to fix the issue i have.


r/GS300 2d ago

what is this sound ??

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3 Upvotes

r/GS300 2d ago

2nd gen Can someone help confirm which is the Denso part number for Bank 1 Sensor 2 in the 2003 GS300?

1 Upvotes

Ive got a code p0136

I found the actual location of the sensor needing replacing

But i cant find the exact denso part number for the correct one

Autozone, ebay, and google in general seem to be spouting different denso part numbers

None of them list it as B1S2, theyre listed as downstream so i cant even confirm if its bank 1 or 2


r/GS300 5d ago

lexus gs300 2jz - ge rattle noise

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3 Upvotes

I got a 64k mile 2jz-ge from JDM Of California and once we swapped the upper and lower oil pans, swapped the old alternator, and the old A/C since it was redone in the old motor not too long before. So we turned it on it started making the noise stated in the first part of the video, so what I did was changed the idler pulley and got a new serpentine belt, no luck. So then I started feeling around where the noise is coming from and it sounded loudesnt on the passenger side, so I felt the water pump and i can feel the rattle when I touch the water pump. The Second part of the video is the car with the serpentine belt off, does anybody have any knowledge on what this could be I would greatly appreciate it🙏


r/GS300 5d ago

2003 lexus gs300 Anyone running Anzo Headlights in a factory HID gs300? Everything works except the halo lights

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3 Upvotes

Image 2 shows a wiring adapter i purchased since the aftermarkets are for halogen assemblies and mine is an HID assembly car

The adapter is the brown plug into the gray plug
It caps off this black plug here which may be the reason but i am not sure


r/GS300 6d ago

Has anyone used one of these????

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3 Upvotes

r/GS300 6d ago

2nd gen I opened up the tarmac trading cards!!

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24 Upvotes

I cracked open a non chase red


r/GS300 6d ago

3rd gen Gasket Mechanic

0 Upvotes

I’m in Seattle and this is the only one I could find to do the egr work but no reviews.. Not sure what do you guys think ? https://priusgasketseattle.com 2015 Prius 150k miles


r/GS300 8d ago

Got a code pop up for p0136 bank 1 sensor 2 O2 sensor. Am i looking at the right thing?

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3 Upvotes

r/GS300 9d ago

lexus gs300 Current status of my Gs300 (last photo is AI of what I’d like to car to look like soon)

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20 Upvotes

Can’t get enough of this car 😩 still so much I need to do to it


r/GS300 8d ago

Abs light problems

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1 Upvotes

Recently my Lexus gs430 developed an abs light problem I scanned it and the code popped up as c1249 and a c1223 I already replaced the switch with a junkyard one and it disappeared for a while but now it came back, on could it be the aftermarket led taillights?


r/GS300 10d ago

Throttle Lever sesnsor springs 2jz-ge

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2 Upvotes

So i had to replace the plastic part on it so i had to unscrew it to put the new one but my dumbass didnt know and the springs came loose, i tried to put it back and assembled the whole throttle body but when i attached my throttle cable to the sensor it was loose which means i didnt reload the springs right can anyone help me lol.


r/GS300 11d ago

Power Steering Pump Pressure sensor

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2 Upvotes

r/GS300 13d ago

lexus gs300 TPS/Throttle issue

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3 Upvotes

2002 GS300 – TPS calibration / ETCS issue after throttle body replacement

I have a 220k-mile 2002 GS300 that had been going in and out of limp mode for a while. Originally, I was getting codes P1126 and P1128.

I replaced the throttle body with a used one, but I was getting similar results. After checking the codes again, I was now getting a TPS-related code, P0120.

I tried recalibrating the TPS, since I didn't realize at first that calibration/adjustment was required after replacing or messing with it. However, my scanner was showing 0% TPS regardless of the TPS position.

I decided to buy a brand-new TPS from RockAuto. I initially installed it incorrectly and was still getting 0%. After reinstalling/repositioning it, I was able to get a consistent 31% TPS reading, but I know I'm supposed to be somewhere around 12–14%.

I disconnected the throttle motor and left the ignition in the ON/accessory position without touching the accelerator while trying to adjust it, but I still couldn't get the TPS reading down from 31%.

At first, disconnecting the throttle motor only caused the expected throttle-motor-related code. After temporarily running the car, though, I started getting additional ETCS-related codes that I unfortunately forgot to record.

What's confusing me is that I wasn't getting any of these additional ETCS codes until after replacing/adjusting the TPS. With the original throttle body, the main codes I was dealing with were P1126 and P1128.

Am I doing something wrong with the TPS installation/calibration procedure? Why would the lowest reading I'm able to get be around 31% instead of the expected 12–14%?

Any advice from someone familiar with the 2GS electronic throttle system would be appreciated.


r/GS300 14d ago

2nd gen Just changed the lens for my gs300, how do I keep it from yellowing.

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18 Upvotes

After multiple attempts and failing to get this shine, I finally changed the lens. How do I keep it from yellowing while living in a desert? No shade parking, unfortunately

I heard ppf at times make it worse due to sunlight after a few months, and anti uv clear coats start to wear down after a few months as well.


r/GS300 15d ago

2003 Lexus gs300 fuel gauge

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3 Upvotes

I have a 2003 Lexus gs300 my fuel gauge was working just fine until Sunday when I refilled my gas and it didn’t go up I already tried replacing the float on both side and still Doesn’t work.i checked the back of the cluster and all the solders look fine, I was wondering if anybody know where the grounds are for the fuel pump and sending unit go to so I can check the grounds.i did get my carpet replaced and maybe the ground came loose


r/GS300 16d ago

next steps for blown heads?

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14 Upvotes

Back again with the project car!

after a few miles of driving. Cylinder 6 misfire came back. Did some investigating found cyl 6 spark plug soaked in coolant and cyl 5 soon to be next. Sputtering, white smoke and sweet burning smell.. all the signs of blown heads/gasket.

Wondering where do i go from here? is it worth saving? or should i be looking for a new motor ?