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Code PO121 2007 Suburban
Check engine light is on and it runs rough (hesitation) at speeds around 30/40 mph. Is this the throttle position sensor and is it something I could change out myself? I don't have a warranty as I bought the truck used. I'm just trying to save some money by doing it myself. Any tips?
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have you tried any of the suggestions for the code P0121?
yes it is something you could probably do some basic troubleshooting on... A code P0121 may mean that one or more of the following has happened: TPS has intermittent open or short internally Harness is rubbing and causing an open or short in the wiring Bad connection at the TPS Bad PCM (less likely) Water or corrosion in connector or sensor http://www.obd-codes.com/p0121 |
A little automotive electrical grease might do the trick as that fixed my problem after replacing the TPS.
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You can do it!
Originally Posted by jkj860
(Post 161993)
Check engine light is on and it runs rough (hesitation) at speeds around 30/40 mph. Is this the throttle position sensor and is it something I could change out myself? I don't have a warranty as I bought the truck used. I'm just trying to save some money by doing it myself. Any tips?
Should cover all you need to know. |
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