LT1-LT4 Modifications 1993-97 Gen II Small Block V8

TPS DLC code #122..why!?

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Old Jan 10, 2009 | 06:28 PM
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Default TPS DLC code #122..why!?

starts, then dies. Throws TPS code 122 every time. Checked for 5v ref...good. Ohmed the other two wires to the PCM.....good. Replaced it with a spare still trows the code.
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Old Jan 10, 2009 | 08:54 PM
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Anybody?
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Old Jan 10, 2009 | 10:46 PM
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Monitor it with a scanner to help you see what is going on.
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Old Jan 11, 2009 | 12:48 AM
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I have no access to a scanner other than a code reader.
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Old Jan 11, 2009 | 01:19 PM
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You can get the right tools or keep guessing. A scanner is pretty much mandatory to work on a modern car.
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Old Jan 11, 2009 | 03:39 PM
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It runs now, and started up and idled good, but now it idles high and is still throwing the code with 2 different sensors. It drives fine other than the high idle and the code. Right now I don't have a scanner, am way over the budget and won't have money for a fancy scanner for a while,( wish I did) I got past all the other problems without it and hope to nail this one too. Yes, I agree a scanner would be ideal, but I can't afford it. It will sit a long time if that is the only way.
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