Well.I just had the "infamous" 2.7 rebuilt on my 1999 Dodge Intrepid. Ugh! However, while the car now runs perfectly fine, and has much more power than I remember it having in recent years, I now have a CEL with codes P0154 and P0155. I know those codes point to O2 sensor issues, but the CEL has never been on since I bought the car 9 years ago. Never! Until the rebuild, that is.
So my question is.
Is it possible that something happened during the rebuild to cause this to happen? The timing of this suddenly happening would seem more than just mere coincidence. It appears the electrical connection is tight, and yes.I guess it's possible that the O2 sensor actually IS bad, but again it just started happening after the rebuild.
I read somewhere that before automatically replacing the sensor, I may want to check for vacuum leaks, intake manifold leak, fuel filter issues, etc. It's those kinds of suggestions that lead me to believe that it may not actually be a bad sensor, but rather something else having to do with the recent rebuild?
Any suggestions? Is it possible that as a result of the rebuild, everything is just "settling in", and that perhaps the code was thrown as a result? In other words, would things settle down after 500 miles or so. Reset the ECM. And perhaps not have the CEL happen again? New pistons, rings, etc. Needing to properly seat? Can blowby or something trigger the CEL? After a rebuild, the thought of spending more money on an O2 Sensor replacement seems like pouring salt in the wound (especially if it doesn't actually correct the problem). Any advice would be appreciated!
Thank you so much for your advice! I'm obviously NOT a mechanic, but I'm a pretty darn good graphic designer! LOL!
have the same problem?
Monday, July 14th, 2014 AT 1:03 PM