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Need help with TPS code & reduced engine power

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Old Sep 14, 2004 | 04:22 AM
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buddha's Avatar
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From: Scottsdale AZ
Default Need help with TPS code & reduced engine power

I'm getting P1220 TP sensor 2 circuit and P1221 TP sensors 1,2 performance. These are causing reduced engine power mode and I need to know if there is anything I can do other than just replace the sensors and/or the connector. Also, where is TP sensor 2? I never knew there was a 2. Anyone have access to the diagnostic procedures in section 6 of the the engine controls manual? Planning to get aset of manauls but i need to get this fixed tonight, or at least try.
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Old Sep 14, 2004 | 04:59 PM
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From: Castle Rock Co
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Originally Posted by buddha
I'm getting P1220 TP sensor 2 circuit and P1221 TP sensors 1,2 performance. These are causing reduced engine power mode and I need to know if there is anything I can do other than just replace the sensors and/or the connector. Also, where is TP sensor 2? I never knew there was a 2. Anyone have access to the diagnostic procedures in section 6 of the the engine controls manual? Planning to get aset of manauls but i need to get this fixed tonight, or at least try.
There is only one TP sensor, but it has redundent poteniometers, try reseating the connector.
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Old Sep 15, 2004 | 12:40 AM
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From: Scottsdale AZ
Default How to safely clean?

Originally Posted by Heretic
There is only one TP sensor, but it has redundent poteniometers, try reseating the connector.
The first thing I did was pop the connector and blow a little compressed air on the contacts, then reseat the connetion. No change. I know these contacts and sensors are somewhat delicate, is there anything that is safe to clean them with, like rubbing alcohol?

I have noticed that the tps connector and wires are conveniently located directly above the path of the accesory belt and were likely given a nice whipping by the frayed edge of my belt. I don't see a broken connnection in any of the tiny wires leading into the connector but it seems the most likely source of the problem.

Last edited by buddha; Sep 15, 2004 at 12:47 AM.
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