|
With cold weather starting, its time to dig this back up.
A major difference that is confusing things is the comparison of very different engine technologies.
A) manual pump ; GM6.5, boats, Cummings
B) computer controlled pumps ; VWs pre 2009, newer trucks
C) CR engines ; VW, BMW, recent trucks
The old manual IPs were fuel + air = go type of engines.cold site was their friend.
The new CRs are more like injected gassers, temp causes the computer to alter all sorts of settings, quantity, start of injection timing, end of injection timing, EGR%, kennuder valve position......
|