Hello to all,

Made measurement on TF signal wbain5280 found same values as you.

But still need to know what tention is on pin 87V of the fuel pump relay. My guess is that this should be activating the coldstart valve by the mean of a signal on TF. Is it square, normal 12V, other

thanks for reply

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My car: E-class 420CDI, 2008, W211, V8, 180 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 345 000km

Son's one: GLK class, 220CDI, 2009, W204

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Sold: E-class, 320CDI, W210, 2000, 225 000km

The cold start valve is turned on by the fuel pump relay. It's a 12v signal, you can think of it as a square wave of some duration proportional to the temp.

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Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

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