'00' SC400 code P0121 $1750 for repair?
Called the dealer back, and it's $107 for a TPS
When I asked why they wanted to install a whole complete Throttle Motor ASSY for $1750, she said that the code "P0121" didn't mean the sensor itself was bad, but rather that what it was measuring was bad...
So now I'm totally confused...
When I asked why they wanted to install a whole complete Throttle Motor ASSY for $1750, she said that the code "P0121" didn't mean the sensor itself was bad, but rather that what it was measuring was bad...

So now I'm totally confused...
Can you tell me what "Mitchell ON Demand" is? I like what you are saying, but I want to be sure we are on the same page.
Is this repair specifically for the code "P0121" ??? Does it specify exactly HOW to calibrate as well?
Thanks so much for taking the time to throw in your advise. I have seen many thoughts already and am not wanting to spend money on the wrong part...
thanks everyone!, I am trying to learn as much as possible before I do anything. I like to do it right the first time if possible... altho I usually mess something up..
So, I really dug into the quote for the dealer, and the reason it costs so much, is because they quoted for a whole new throttle body assembly! that includes a new TPS, Lever assm, ACC sensor, motor assm, and TB!
Those lazy POS's can't even diagnose what the problem is, they just want to replace the entire system! What if the only problem is the TPS that costs $107 ! AMAAZING
I am so torqued! No wonder they are called the stealer !
Those lazy POS's can't even diagnose what the problem is, they just want to replace the entire system! What if the only problem is the TPS that costs $107 ! AMAAZING
I am so torqued! No wonder they are called the stealer !
yeah that sounds like the price for a whole vvti throttle body, that is usually what they do, replace in chunks.
just change the sensor out, or even a replacement vvti throttle body can be had for under a few hundred.
just change the sensor out, or even a replacement vvti throttle body can be had for under a few hundred.
So, I really dug into the quote for the dealer, and the reason it costs so much, is because they quoted for a whole new throttle body assembly! that includes a new TPS, Lever assm, ACC sensor, motor assm, and TB!
Those lazy POS's can't even diagnose what the problem is, they just want to replace the entire system! What if the only problem is the TPS that costs $107 ! AMAAZING
I am so torqued! No wonder they are called the stealer !
Those lazy POS's can't even diagnose what the problem is, they just want to replace the entire system! What if the only problem is the TPS that costs $107 ! AMAAZING
I am so torqued! No wonder they are called the stealer !
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Luxor
SC - 1st Gen (1992-2000)
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Oct 6, 2018 07:46 PM








