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Forum: Diesel Discussion

10-11-2011, 01:47 AM

Replies: 14

1990 300d 2.5 no boost

Views: 1,725

Posted By sixto

I'm suggesting you can check with a VOM or test...

I'm suggesting you can check with a VOM or test light whether there's a ground signal from the overboost switch below 0.9-1.1 bar. There is constant +12V to the solenoid when the engine's running.
...

Forum: Diesel Discussion

10-11-2011, 12:22 AM

Replies: 14

1990 300d 2.5 no boost

Views: 1,725

Posted By sixto

Not adjustable. The setpoint is about 1.1 bar. ...

Not adjustable. The setpoint is about 1.1 bar. Or maybe it's 0.9 to 1.1 bar. But it's fixed.

Sixto
87 300D

Forum: Diesel Discussion

10-10-2011, 11:43 PM

Replies: 14

1990 300d 2.5 no boost

Views: 1,725

Posted By sixto

The overboost sensor sends a ground signal at...

The overboost sensor sends a ground signal at ~1.1 bar. It's open below the setpoint. Easy to test.

When you swapped transducers, you might have sent a vacuum signal to the mixing pipe flap and...

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