11-04-2018, 06:27 PM
My first thought would be that the original problem was never really fixed n that the car has been over-fuelling. That will ruin a cat reasonably quickly.
On my car it was a faulty manifold pressure sensor which oddly only ever caused the ECU light to occasionally flash on for a few moments. There are a number of other possible causes tho n it's difficult to diagnose a car you haven't seen, heard, or plugged some sort of diagnostic tool in to.
I don't really know a lot about the 1.4's but assume it's single point injection?
On my car it was a faulty manifold pressure sensor which oddly only ever caused the ECU light to occasionally flash on for a few moments. There are a number of other possible causes tho n it's difficult to diagnose a car you haven't seen, heard, or plugged some sort of diagnostic tool in to.
I don't really know a lot about the 1.4's but assume it's single point injection?