Turbo Boost at idle

[Luis Jove]

I have new to me 2003 480 CE,

While at idle at the dock the display is showing a reading of 5 InHg, I understand that It should be 0 (no boost) while at the dock at idle. Could it be a bad boost sensor? Would that extra reading maintain itself throughout the cruising RPM range? Appreciate any help you can give me.

Luis

Topic

[Luis Jove]

Thanks Tony,

I will swap transducers between the engines and see if the issue follows the transducer. Will the boost reading affect the fuel consumption readings on the 480 ce? How exactly is the fuel flow determined, by the ECM, the fuel pump?

[Tony Athens]

Most likely a bad sender / “transducer” in this case– I’d assume none of the readings are accurate.

[Author]

Replies