When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
yes
The intake valve is opened early, near the top of the exhuast stroke, which pushes a small amount of exhaust gas into the intake manifold.
@VAGfan This is interesting. Are there are any industry (e.g. SAE or others) or manufacturer (e.g. VAG or others) sources you can point to discussing EGR in this manner?