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2004 sorento engine code p1121
10-20-2011, 12:37 PM
Post: #1
2004 sorento engine code p1121
The code is TPS signal malfunction from ECM to ETC. How do I fix that is it in the sensor or the circute its self? the problem causes the transmission to go into limp mode and is very agrivating.[/size]
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10-20-2011, 11:24 PM
Post: #2
RE: 2004 sorento engine code p1121
Not an expert on Kia but seeing (out there on the web) that typical soultions are a poor connection at the TPS from un-plugging it to change spark plugs or a valve cover gasket. Other common issues are just needing a replacement TPS and cleaning the throttle body while you are under the hood. This is something you should do from time to time anyway. (cleaning the throttle body) It has nothing to do with that code but leaving it dirty may set other codes eventually.

Let us know how you make out.
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10-22-2011, 09:54 PM
Post: #3
RE: 2004 sorento engine code p1121
The throttle body is very clean but tends to stick opon first starting the vehicle. There do not seem to be any connection problems either maybe a ground problem very little rust or coarosion on vehical? A spark plug wire was arcing to the engine at a chafe point could that have caused part failure?
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10-22-2011, 10:01 PM
Post: #4
RE: 2004 sorento engine code p1121
What I would do is replace the TPS and have the code cleared, then see what happens. After all, it's 7-8 years old and they do wear out.
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