mdcrabcake

Earlier I wrote re a problem w/ loss of acceleration on my '98 GS300. The CEL & VSC lites came on & it went into limp mode. Auto Zone read the codes as a throttle position sensor (P1120 & P1121) which I then had replaced at my local Toyota dealer for $160 parts & labor. Ran great for 2 wks...then problem recurred. Took it back to Toyota & they said it needed a whole new throttle body...to the tune of $1200. (They said it showed same codes as before. Didn't have an explanation for that..) Decided to go back to the local indie Lexus shop I used for my '92 ES, Davenport Motors in Plano, TX. Good people there... should have gone there first. Took a day & $500 but they fixed it...said they had never replaced a throttle body on a GS. They'd seen this problem before... faulty pedal position sensor. Car even seems a touch zippier now...maybe just happy not to be limping!

This sounds alot like my problem w/ my '98 GS. How do you search the recalls??

Well, I had the TPS replaced by my Toyota dealer & the car ran great for about 2 wks. Today, it's deja vu all over again. Now the dealer says it's the throttle body that needs replacing with a $1200 price tag. I'm thinking of taking it to another independent shop that works only on Lexus... I had work done there on my '92 ES300. So.... any ideas????

What is that angle % and/or where can I find that info? If I reinstall the old sensor or install the new one will the car still start w/o the adjustment?

I bought a '98 GS300 in July w/ just under 50K miles on it. (Sure wish I'd taken it to the dealer then for an end-of-warranty check up!) I've had a "check engine light ??" problem, too. In the past month I've had several episodes of an intermittant loss of acceleration. The first time it happened, I was making a turn onto a side street & almost got broad-sided when the car didn't move as fast as the on-coming traffic. After disconnecting the battery to reset the computer, it didn't happen again until 2 wks. later. Took it to AutoZone for a diagnostic check (FREE!!) but no codes showed. Yesterday, it happened for the 3rd time. The check engine light came on again along w/ the VSC light. They stayed on so I took it back to AutoZone. BINGO! Codes P1120 & P1121... throttle position sensor. Ordered the part ($200) & will install it this wkend...hope that solves the problem. Otherwise, this has been a great car. I like the GS style & the extra weightiness... added a lip spoiler to the deck lid... gave it some zip. Had a '92 ES300 & sold it when I got this one. It had just at 82K miles & was just beginning to need some fairly serious($$) work so I bailed.