Question about 1987 Nissan Maxima
How many pounds of pressure should a 1987 Nissan maxima GXE fuel pump have
1st I hope you are taking the fuel pressure from the correct side of the system. The correct side will be the side coming from the fuel filter and before the fuel pressure regulator. At a normal idle, the pressure should be roughly 30-33 psi. When you crack the throttle rapidly, a sudden vacuum drop will cause the diaphragm in the fuel pressure regulator to shift causing the fuel pressure to jump sharply. Usually to 45 or 50 psi. You can check the maximum fuel pressure by dead heading the pump. This can be done by simply pinching off the return hose to the fuel tank. At an idle, the maximum fuel pressure the pump will put out will be displayed. You will also notice a slight jump in rpm's because it cause the fuel mixture to fatten up before the ECM can respond to changing the pulse width based off of the o2 sensor.
I hope my answer was satisfactory.
Posted on Apr 02, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Aug 29, 2016 | 1997 Nissan Maxima
Nov 24, 2010 | 1999 Nissan Maxima
Jun 14, 2010 | 2000 Nissan Maxima
May 31, 2010 | 1997 Nissan Quest
Apr 04, 2010 | 1987 Nissan Maxima
Mar 06, 2010 | 1997 Nissan Pickup
Nov 13, 2009 | 1987 Nissan Maxima
Sep 07, 2009 | 1995 Nissan Maxima
302 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: