Hi guys, after cleaning my EGR on my Z17dth there is quite a bit of power difference now, I've been reading about blanking plates so decided to make one out of a sheet of old steel I had, I first tried it with out the 8mm hole and had the engine management light on pretty much instantly, so took it out and put a 8mm hole in the middle now no over boost code or EGR stuck code, the power difference on the lower end is remarkably different I thought a hole in the plate might be hit or miss but...
EGR Reducing plates & Mot Smoke test
EGR Reducing plates & Mot Smoke test