Chosen Solution
My 2001 Honda Accord EX 4 cylinder is setting off ECL twice now w P0128. All systems there are good. I hear a software/computer upgrade will help as parameters have changed. I would not get a new ECM in my beloved car (too expensive) but need to know if upgrade can be done at a dealers
Here is a very complete description of what this error code means, what could be causing it, and how to diagnose it: https://www.fixdapp.com/blog/p0128 I would not do any sort of software upgrade for a car that is 17 years old. I believe a more traditional repair is in order.
