Anyone had any experience with a DTC 55?
TIA
Kevin

 

I thought 55 was an "end" code. At least it is on other vehicles I've had. When you get that code it means end of stored codes. If you only get it that means there are no codes stored. But without checking the DTC codes for our cars specifically, I am not 100% sure on this. Like I said, I know that's the case on other cars I've had

 

DTC 55 = "fuel lean monitor".

 

I had that on my Neon and turned out to be the upstream o2 (before cat) was bad