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Old Jan 10, 2005 | 04:58 PM
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Idle question, also computer problem
Hi, I am new to the forum, but I do have a serious problem with my 92 F150. It started with a high idle, and has been a thorn in my side since. I have replaced my IAC, TPS, ECT, and throttle body gasket. I have done voltage checks on all sensers, and all but the new TPS is giving me problems. The TPS reads about 2.6. Even though it is a new TPS... So, then I put it on a code reader and I get codes 411 and 412.

411: cannot control idle at high revs
412: cannot control idle at low revs

I have been looking for other vacuum leaks and am still at a loss.

HELP
 
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Old Jan 10, 2005 | 05:04 PM
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Old Jan 10, 2005 | 08:36 PM
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I guess I am not the only one that doesn't know what to do
 
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Old Jan 10, 2005 | 11:51 PM
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BUMP BUMP CAn't anyone help
 
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Old Jan 11, 2005 | 12:13 AM
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sorry man, nobody i asked knows anything about the problem you are having
 
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Old Jan 11, 2005 | 05:39 PM
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Is it possible that there still is a vacuum leak somewhere? Or could it just be the computer is sending an outrageous signal to the TPS?
 
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Old Jan 11, 2005 | 06:37 PM
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with some of the earlier computers, sometimes the only thing you can do is go to a good shop or even the dealer
 
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Old Jan 11, 2005 | 06:50 PM
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Bummer, I hear flashing these computers are pretty expensive
 
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