Quote:
Originally Posted by starkcb You are correct Tommy on the .032 gapping. My car has 121000 miles on it and I was wondering if I should change out the (4) O2 sensors the same time I change to new sparkplugs? Will really old O2 sensors foul up the new spark plugs? |
the short answer is Yes, and yes.
O2 sensors tell how much more fuel to add to the mixture. if they've gone bad, you'll surely be running rich (rich is safer than lean), which means more unspent fuel on the spark plugs. this can drastically decrease their life.