Post 10

US spec cars from the 70's and up have a vacuum diagram posted somewhere under the hood, not sure if Euro spec cars did the same. A repair manual should show vacuum diagrams.


Post 11

The O2 sensor looks at excess Oxygen then feeds that info back to the engine computer, the fuel mixture is then adjusted accordingly. This is called a closed loop system.


Post 12

A hot tube / EGR valve test is only valid when the engine is cold and the valve is opened. When running, everything under the hood will heat soak making the test less valid.

Stalling the engine / rough idle when the EGR is opened is a good test.


Post 14

" Late night in garage . . . .

. . . .Started about 7pm & finished after 2AM. "

" Time for a run...I slept in late & I'm limping around.

Still got some grease under my nails..

Oh, its not very lady like but I love my car & want to make it better. "


Working on your own car, on a Friday night, will you marry me?

(Latex or nitrile gloves go a long way to help keeping hands clean. )