Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!





Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

How has COVID-19 impacted your car shopping? Click here to help us help drivers like you with a 5-min questionnaire.
Did you get a great deal? Let us know in the Values & Prices Paid section!
Meet your fellow owners in our Owners Clubs

2006 Envoy Denali

NoahNoah Posts: 1
edited April 19 in GMC
Recently replaced the throttle position sensor (P0121). I can feel the rpms surging and sometimes when I'm stopped the engine will die but it starts right back up. My check engine light will come on periodically but it's the same code, P0121. Check engine light goes off for a while if I unhook the battery. Any thoughts???
Sign In or Register to comment.