PO121: Bad Throttle Position Sensor
09-29-2012, 03:13 PM
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PO121: Bad Throttle Position Sensor I have a Check Engine light, and after running the PO121 code, it says I've got a bad throttle position sensor. However, the TPS is built into the throttle body. After calling the dealer, they say I've got to buy the entire $300ish throttle body as a unit. Any suggestions?
I see that ZZPerformance sells a LS4 throttle body, but is marketed as an upgrade for the L67. Is that essentially just a stock LS4 throttle body that would work for what I need? It's only $120. http://shop.zzperformance.com/store/...y-for-LSJ.aspx
I see that ZZPerformance sells a LS4 throttle body, but is marketed as an upgrade for the L67. Is that essentially just a stock LS4 throttle body that would work for what I need? It's only $120. http://shop.zzperformance.com/store/...y-for-LSJ.aspx
