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Old 04-18-2009, 08:06 AM   #1
1nz
 
Drives: Vios
Join Date: Oct 2008
Location: Brunei
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Trouble Code P2121

I had this problem twice today:
when this happens CEL comes on and p
ress the throttle 100% and it only opens 15%

1st i reseted the battery, after 20-40km or so light turns on again at traffic light and my car cant move, when i checked the rpm engine is idling even when i pressed the pedal, hold my feet on the pedal and suddenlyu car move and again full pedal = 15% throttle luckily this time i try clearing the trouble code using my Greedy informeter and car is back to normal.

When i checkd the trouble code it chouws P2121 which i cant seem to find in the toyota nation website

anyone have any idea?
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Old 04-18-2009, 08:42 AM   #2
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Quote:
Originally Posted by camelll View Post
this is for the 1gr-fe and I assume it would be similar.
http://www.purefjcruiser.com/docs/20...em/0050054.pdf
Thanks.... thats the one

This one is the closest related issue, but if that was the problem, i would appear again when i clear it when i was driving right? luckily with this informeter can clear it without removing the battery terminal
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Last edited by 1nz; 04-18-2009 at 09:02 AM.
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Old 04-18-2009, 09:22 AM   #3
1nz
 
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i'l just check the connection tomorrow if it appears again i'l definitely send it to the shop, and maybe it's also caused by my emanage harness bad connection maybe hehe will check it out
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Old 04-18-2009, 11:18 AM   #4
jambo101
 
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I had the P2121 a few weeks ago when returning from a long trip and did the last 200kms with the engine light on and the gas pedal feeling strange on acceleration but it would cruise at highway speeds.Next day i openened this post http://www.yarisworld.com/forums/showthread.php?t=15801
To discover it was throttle position sensor related however when next i started the car some 24hrs later the problem has gone away and hasnt been back since.
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Old 04-18-2009, 01:42 PM   #5
firemachine69
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I'll take a guess that you sprung a vacuum leak somewhere (intake manifold?)

In any case, take it to the dealer. Might even still be covered under warranty.
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Old 04-18-2009, 10:05 PM   #6
1nz
 
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Problem is as soon as they see my emanage plug n play harness they will void my warranty and if i send it there theres a posibility the problem wont appear so if it appears again i will send it there

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Old 05-28-2011, 02:28 PM   #7
DAEL
 
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I took off my connections, contact cleaned them (spray) then used silicon dielecrtic paste. these are old messages. Nothing recurring?
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Old 05-17-2022, 03:57 PM   #8
kunitt96
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Quote:
Originally Posted by 1nz View Post
I had this problem twice today:
when this happens CEL comes on and p
ress the throttle 100% and it only opens 15%

1st i reseted the battery, after 20-40km or so light turns on again at traffic light and my car cant move, when i checked the rpm engine is idling even when i pressed the pedal, hold my feet on the pedal and suddenlyu car move and again full pedal = 15% throttle luckily this time i try clearing the trouble code using my Greedy informeter and car is back to normal.

When i checkd the trouble code it chouws P2121 which i cant seem to find in the toyota nation website

anyone have any idea?
i have the same problem.
do you fix your problem?


Or does anyone have any information?
i remplace my tps and my pedal :( :(

regards
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