New problem - Fuel pressure drops off - 75 280 L Jet, w/ composite injectors, ProtunerZ rail, 3 bar FPR

[HusseinHolland]

I've been driving the Z to work pretty regularly (as long as no rain is forecast), and the car has not missed a beat since replacing the original relay. Many thanks again to Zed Head for his input - it would have been a bitch to find otherwise.

[EuroDat]

Congrats on the quick fix. You are lucky to have a Bosch 0 322 514 127 Fiat relay handy. These dual units are getting harder to find since Bosch stopped making them around 2020.

Something I found years ago. If you are looking for a Bosch 0 322 514 120, try Beck Arnley 203-0053. It's a Bosch relay, but they just took it out of the Bosch box and put in a Beck Arnley box. It is also hard to find, but the more options increase your chances of finding one.