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FAQ ANSWER DETAIL
What do I need to be aware of when installing my Dodge Diesel fuel pressure gauge?
You can use any Auto Meter Full Sweep Electric Fuel Pressure gauge to monitor lift pump (not injector) pressure, though we recommend the 30psi units as a best fit for this application. However, you must also install a #3279 pressure snubber fitting and #3227 stainless hose kit to protect the sending unit as '98 to '02 (and some late '97 or early '03) Dodge Diesels produce a very sharp, very high pressure spike in excess of over 300psi between the lift pump and injector pump.