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p0120 where do i check? no throttle

Old Dec 30, 2009 | 07:29 AM
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Default p0120 where do i check? no throttle

hi guys i just finished my 5.3 , jeep wrangler project and i have a p0120 code...the jeep will idle but i have no throttle, i where should i be looking i also have a p2135 code i need help guys
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Old Dec 30, 2009 | 10:22 PM
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P0120- TPS1 out of range. P2135- TPS1 and TPS2 out of synch(obviously).

Check the TB wiring/connectors, engine grounds, tune, TB, TAC module.
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Old Jan 1, 2010 | 10:57 AM
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ok guys, i checked the tb, it idles fine.... i mean it moves a bit on initial start......., so im guessing it works, all wires seem to connected and there is a good ground... i cant figure this out.... you think i should get another TB and recheck?

also what is the p2135 code... i thought it was a pedal code?
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Old Jan 1, 2010 | 11:31 AM
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Did you clean it recently, i.e. remove the blade? If you did, there is a good chance that the blade is ever so slightly off center and dragging on the TB, throwing the codes. Been there.

Greg
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Old Jan 1, 2010 | 12:06 PM
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Did you use a used harness? Check the wires going into the throttle body connector very close. You can't tell but the wire might be broken inside the sheilding. Pull on each wire individually and a broken wire will pull apart.
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Old Jan 1, 2010 | 12:31 PM
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i will try that tommorow.... any other suggestions
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Old Jan 2, 2010 | 01:21 PM
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ok guys i found the problem... one of the pins on the TB was bent...... just straitened it and now throttle works
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