Code P2020 after Rebuild

[Dino Dino Bambino]

Quick question, what material is the outer door skin and wings on an S197 made from? I have a reaction on the two doors started one year after respray and looks really bad this year. I also see signs of it starting on the wings also. Bootlid as well. Ohh and my p2020 code is back again

As far as I know, the bonnet (hood) is aluminium and all the other panels are steel. One way to find out is to use a magnet and see which panels it sticks to.

 

[Juice]

I put a catch can on my 91, only because its supercharged. It collects very little, to the point of, "do I really need it?" lol
I also had a bone stock 5.0 pushrod that had so much blowby I had to disconnect the PCV. No catch can was going to help there. So Ive seen both extremes first hand. Dont have one on the coyote. It dont use but a 1/4 quart between changed=not needed.

 

[Kev555]

As far as I know, the bonnet (hood) is aluminium and all the other panels are steel. One way to find out is to use a magnet and see which panels it sticks to.

So the problem is something to do with the undercoat used then or reaction between the paint and undercoat. I do know the painter took the car back to the bare metal in most places. I was thinking it was something caused by undercoat or primer reacting with the Aluminium.

 

[Kev555]

Just an update on the paintwork problem, After discussing it with a couple of body experts we have come to the conclusion that the panels were damp or there was moisture in the airline. The panels were rubbed back to the bare metal before being primed so we think it locked in the moisture and the result could be flash rust. I know the car was resprayed over the winter time where its cold and damp here.