1990 Nissan 240SX not starting after replacing fuel injectors; PLEASE HELP - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Dr.Nurse · 01-03-2015, 07:41 PM

Today a friend and performed the following tasks in order to solve the problem of a leaky fuel injector code on a California Model 1990 Nissan 240SX. The car ran prior to our interventions, but now it has ceased to start for some unknown reason.

1) Replaced the Fuel Injector Connectors via butt connectors and solder because the existing ones had exposed wire and severe corrosion

2) Installed Rebuilt Fuel Injectors with Fresh Seals and O-Rings (Had the injectors rebuilt by Mr.Injector out of Idaho)

3) Replaced the Fuel Filter and Fuel Pump

4) Installed a Fuel Pressure Gauge between the Fuel Filter and Fuel Rail in order to perform future diagnoses.

After performing all of the aforementioned, the car will not start. When I turn the key on to activate the fuel pump, although initially the fuel pressure gauge reads about 43PSI, it quickly goes down while I hear a swooshing sound near the fuel rail. None of the injectors are leaking. It seems to me that the culprit is a faulty Fuel Pressure Regulator but I am hoping that someone with more experience the this matter can shed further light on my dilemma.

Thank you for your kind consideration and any information that you may offer in my plight to smog my car before the Spring Semester begins.

Sincerely,

-Brian

01-03-2015, 07:41 PM	#1
Dr.Nurse Join Date: Jan 2015 Location: Aptos, California Age: 44 Posts: 3 Trader Rating: (0) Feedback Score: 0 reviews	1990 Nissan 240SX not starting after replacing fuel injectors; PLEASE HELP Today a friend and performed the following tasks in order to solve the problem of a leaky fuel injector code on a California Model 1990 Nissan 240SX. The car ran prior to our interventions, but now it has ceased to start for some unknown reason. 1) Replaced the Fuel Injector Connectors via butt connectors and solder because the existing ones had exposed wire and severe corrosion 2) Installed Rebuilt Fuel Injectors with Fresh Seals and O-Rings (Had the injectors rebuilt by Mr.Injector out of Idaho) 3) Replaced the Fuel Filter and Fuel Pump 4) Installed a Fuel Pressure Gauge between the Fuel Filter and Fuel Rail in order to perform future diagnoses. After performing all of the aforementioned, the car will not start. When I turn the key on to activate the fuel pump, although initially the fuel pressure gauge reads about 43PSI, it quickly goes down while I hear a swooshing sound near the fuel rail. None of the injectors are leaking. It seems to me that the culprit is a faulty Fuel Pressure Regulator but I am hoping that someone with more experience the this matter can shed further light on my dilemma. Thank you for your kind consideration and any information that you may offer in my plight to smog my car before the Spring Semester begins. Sincerely, -Brian