G'day Folks,

I'm still struggling with electrickery.

I want to test my air idle control valve on my M102.

Book says the current should be 580 mA +/- 50 mA after a 28 second period due to heater on air intake and at an idle of 700 to 800 rpm

So I got me the expensive cable



M102 / M103 CIS test cables

Plugged it into the parts I'm meant to =>







Connected the end to the multimeter



And the bloody engine stalls!

It seems like the impedance of this auto-ranging multimeter is too high (or summit like that) and that causes the engine to stop.

I've tried to make the measurement with "less good" multimeters I have with a switch-able range such as the one in this picture =>



And the bloody engine still stalls when I switch to the appropriate 0 - 1 amp (was it?) range...


....hmpf - not impressed.

Any suggestions?

One of those gucci clamp round a wire current meters?

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!