VSC and VSC Off Lights - Limp Mode
09-07-17, 06:35 PM
#556
Anyone know if we can still get the car fixed by dealership under the Toyota Dconomic Loss Settlement? My 98 GS400 had the CEL, VSC, and VSC OFF lights come up today while I was driving home. 150k miles. First time these lights have ever come on. They came on as I was exiting the freeway and ss I was slowing down to a stop I felt the car vibrate a few times and then it stopped. Drove a few more streets, but no more vibrations. Lights were still on. Will be getting the CEL checked out tomorrow.
Last edited by LexusK; 09-08-17 at 08:55 AM.
09-11-17, 08:27 AM
#559
if you have a gs300 make sure you get the screen assembly, the V8's are internal
https://www.clublexus.com/forums/per...ve-filter.html
https://www.clublexus.com/forums/per...ve-filter.html
09-11-17, 11:55 AM
#560
if you have a gs300 make sure you get the screen assembly, the V8's are internal
https://www.clublexus.com/forums/per...ve-filter.html
https://www.clublexus.com/forums/per...ve-filter.html
11-09-19, 04:37 AM
#563
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Help
The Main ECU and all the wires to and from it...thats all thats left...UNLESS you got a used TB with the exact same problem as your old one....but I thought you said you also tried replacing the TPS and Lever Assembly as well ???
Im thinking youve got a wire/harness problem...unless for some reason Bad signals from the MAS Sensor or O2 Sensors are somehow throwing the TPS/ACC PED codes...
honestly, as much as I hate to say this: Its time to take to a Lexus dealer, tell them youve replaced the entire TB, the ABS/VSC module, the Yaw sensor, and pay them $135 to diagnose the problem.
When they know youve already done so much, it will be difficult for them to say "Oh, its the TPS Sensor"...
BTW: Where was the Yaw sensor?
Im thinking youve got a wire/harness problem...unless for some reason Bad signals from the MAS Sensor or O2 Sensors are somehow throwing the TPS/ACC PED codes...
honestly, as much as I hate to say this: Its time to take to a Lexus dealer, tell them youve replaced the entire TB, the ABS/VSC module, the Yaw sensor, and pay them $135 to diagnose the problem.
When they know youve already done so much, it will be difficult for them to say "Oh, its the TPS Sensor"...
BTW: Where was the Yaw sensor?
12-01-19, 09:02 AM
#564
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Hey guys I have a 98 gs300 I got a month ago from auction. It was running fine until last week and check engine, vsc and vsc off came on then flashing CEL. We didn’t drive more than a mile to get the codes read once it was flashing. Really hard time accelerating, misfiring, and before we made it home it lost power.
we were getting code po302, we changed all spark plugs and then it wouldn’t stay powered on more than a minute, got a throttle body sensor code, sprayed it with some cleaner and the code went away but still wouldn’t stay on, added some gas and now it will stay on and no codes so far but still misfiring and chugging at idle.
we are doing the coil today for the original 302 code, but just curious if anyone as any suggestions sense this thread seems to have a lot of info.
ive read through most of it but I am feeling overwhelmed with info lol
also when we changed the spark plugs there was A LOT of oil in the chambers of the middle and back ones (first set didn’t have any). After we got it back running again there was some “white smoke” (more like steam) coming from right around the throttle body. It wasn’t very much at all, but worth mentioning. No overheating in the car.
we were getting code po302, we changed all spark plugs and then it wouldn’t stay powered on more than a minute, got a throttle body sensor code, sprayed it with some cleaner and the code went away but still wouldn’t stay on, added some gas and now it will stay on and no codes so far but still misfiring and chugging at idle.
we are doing the coil today for the original 302 code, but just curious if anyone as any suggestions sense this thread seems to have a lot of info.
ive read through most of it but I am feeling overwhelmed with info lol
also when we changed the spark plugs there was A LOT of oil in the chambers of the middle and back ones (first set didn’t have any). After we got it back running again there was some “white smoke” (more like steam) coming from right around the throttle body. It wasn’t very much at all, but worth mentioning. No overheating in the car.
Last edited by Amandabr4; 12-01-19 at 09:11 AM.
12-28-19, 10:35 PM
#565
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Limp mode in Lexus Gs300 Year 2000
I have read most of the comments and replies in this post , seems like there is no one right answer of this problem. I bought my lexus GS300 model year 2000 . It has 250K miles on it. It ran smooth for a month , then suddenly one fine morning i got VSC & Check Engine Lights and i cant simply accelerate car. Used my OBD2 scanner , and found code 1121 . went online and came to know that its related to TPS Sensor. I moved forward to remove full throttle body. Car went smooth for another month and later same thing happened. Now i m removing my battery cable wires each time i get this problems and car goes fine for a week or so. But this is getting a permanent problem. I ran another detailed computer test from one mechanic and got a code of C1201 , related to ABS System. Mechanic told me that car is not going to limp mode because of this code and Replacing full ABS System is not cost Worthy. Any Suggestions.
03-18-20, 04:55 PM
#566
Driver School Candidate
im getting p1125 code. I was told to try to run the tps and the aps parallel to each othe to fool the ecm. DO you think this may work until I can get a replacement? What is the website yall are using to get a throttle body replacement??
08-24-20, 09:38 PM
#567
Driver School Candidate
wow very very common issue. my 2000 GS300 is doing the same thing got the car from someone who gave up on the issue after 3 months. have code P1125 checked the wiring following the service manual. All ok. swapped entire throttle body from my 98 GS300 onto my 2000. Cleared codes. fired up soon as it got warm same issue. cleaned MAF gonna re check engine harness it looks funny since the engine was replaced at some point.
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