Code 122 since new head?
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Joined: Oct 2008
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From: Plover, WI
Code 122 since new head?
I recently replaced the head on my 92, and after buttoning everything up, I've had code 122, along with elevated idle. It's for throttle position voltage too low. Any chance I bumped the sensor at some point? Or is the TPS toast? Thanks for any insight.
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Joined: Nov 2007
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From: Denver Metro Area, CO
Gasp! You touched it! You broke it!
Seriously, some of this wiring & plastic & such that's 20 years old is quite fragile at this point.
If you have a meter, you can probably test it (google it).
Seriously, some of this wiring & plastic & such that's 20 years old is quite fragile at this point.
If you have a meter, you can probably test it (google it).
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Senior User
Joined: Oct 2008
Posts: 367
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From: Plover, WI
I've got a Haynes manual that briefly talks about testing, and looked at oldfuelinjection.com for the full procedure, and will do that tomorrow. I was just wondering if something simple might have happened with the sensor itself during disassembly/assembly and getting moved around the garage during the repairs. Since I never had a problem before, makes sense something happened while it was apart. Will check wiring, connectors and function.
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