166 2.4 JTD rail pressure drop... - Alfa Romeo Forum
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166 2.4 JTD rail pressure drop...

Hi, everybody

Can a problem in the injector be the cause of the pressure drop in the rail, or duration times over 1300 are the maximum of the R65 fuel pump?

The car is 166 2.4 JTD 136 hp with 119 injectors.

The pressure drops significantly when the fuel temperature is above 55 degrees.
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Looks like some duration or pilot correction by temp, then main duration raise and it hits pump limit. 1400 uS @ 1400 bar @ 119 injectors is big quantity.
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