Service engine light on showing code p0089. Diagnostic trouble code P0089 - The ECM commands the Bosch high-pressure fuel pump to deliver a specific fuel rail pressure - that can vary up to 23,000 psi depending on load and speed. The actual pressure is monitored via the fuel rail pressure sensor. Hi. I have a 55 plate fiat doblo 1.3 multijet been an excellent runner until I went on holiday came back, started first time reversed ro pump up tyres turned back on and nothing, have replaced battery and jump started but still nothing, took to mechanics who have tried starting but no joy, had Jun 25, 2022. #1. Hi All. Am in south of France and while driving this morning my Fiat Ducato 2.3 unit declared a “check engine start stop unavailable”. There is no loss of power. No Mis firing. All ok. Spoke to fiat assist. Told me they had seen the issue before but that as light was amber ok to drive and they would get dealer to look next Auto Fiat Doblo 1,3 Multijet, 5 locuri unic proprietar. 2 500 € Prețul e negociabil. Utilizat. Vaslui - 30 decembrie 2023. 2007. QKLh.