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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

code 51 help??

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Old Feb 27, 2009 | 04:22 PM
  #1  
LilPyke's Avatar
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From: atwater
code 51 help??

so i did the check engine light thing and i came up with a code 27 and a code 51..

the code 27 i think is just the wires off my o2 sensor look light they got burnt from the exhaust???

and with code 51 its sumthin with my throttle position sensor and i have no clue on how to try and fix that??? any help?
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Old Feb 27, 2009 | 04:39 PM
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From: Temecula Valley, CA
throttle position test:
http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml

also code 51 suggests that the air conditioner was on or possible the neutral safety switch was on (key was on and clutch depressed) when the jumper was inserted.
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Old Feb 27, 2009 | 05:11 PM
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From: atwater
shoot i think it might have sumthin to do with the ac.. i had to hard wire my ac to a new switch bout a year ago but this light just came up.. but when i hit the gas it seems like the throttle body dont go back all the way. ive adjusted it a lubed it but still no luck. cause if i push it back down it lowers the idle but has to be forced to there..
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Old Feb 27, 2009 | 05:14 PM
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From: Temecula Valley, CA
check the dashpot on the throttle body
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Old Feb 27, 2009 | 05:28 PM
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From: atwater
well the dashpot aint goin back all the way i backed out the screw that stops the tb and put the other one pretty far in that hits the dashpot and it still does it i think my cable might be sticking?? idk i have to wait till tomoro so i can see what im doin better..
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