No power to fuel pump or pump fuse on a 1996 saturn sl1. whats up?

SOURCE: 97 gmc pickup, 5.7 eng, fuel pump not operating,

What you need to do is check you fuel pressure. Go to a local auto parts store and buy a fuel injection pressure tester. The pressure fitting is on the top of the motor its a 3/8 ish sized metal line and has a screw on fitting like a tire valve does. This line comes up from the back of the motor to the right of the distributor and goes down into the intake. Make sure to have a rag handy to catch the fuel seepage. After you connect the pressure tester turn the key on and off three times and read the gage you should have atleast 58 pounds of pressure. If you have 56 pounds it won't run because the fuel injectors are a poppit valve style and need atleast 58 pounds of pressure to operate.

SOURCE: no power to fuel pump 1996 isuzu rodeo

well i got a salvaged ecm from a junkyard and put it in, still did'nt start. took alternator off to have it checked , it is fine. put it back in and now it starts and runs fine. check the alternator and the connections, i heard the alternator controls power after the initial ecm prime when it is turned on. i have no idea how true it is, but worth a shot. if you can find a cheap ecm for a junkyard (mine was 75 bucks) i would try that afterwords.

ZJ Limited

• 17989 Answers
• Posted on Dec 29, 2009

SOURCE: 2002 Saturn SL1 check engine light code P0303

For old models, Saturn/GM also used the same material fiberglass gasket in your model, you almost certainly have a leak from a crumpled, sucked-in gasket as I suffered (and many others). I would say going to Saturn dealership to make repairs is probably not good idea if they are going to put in the same GM intake gasket part. Maybe possible to specify Felpro gasket with whatever shop you go to if you don't do the repair yourself. I would not go too long with your car in that condition as there is localized leaning at your cyl-3, that could cause a burnt exhaust valve there.

The exhaust is extra hot venting out that cylinder. P0303 is misfire at cyl-3. Mine was P0301 (cyl-1). You may get P0507 once in a while when PCM fails to control the fast idle caused by the leak under certain conditions. Most of the time, it is very slow idle caused by 3 cylinders running. You run smoother in cold idle because the IAC opens up to increase idle and end up lowering the manifold vacuum, so the reduced vacuum causes less leaking at the failing intake manifold gasket.

I'd say try cleaning everything with your ignition before replacement; Idle problems could be caused by engine coolant sensor (ECTS). Are you sure it was changed? Did they put on a new wire connector along with it?

Hope helps.

SOURCE: 1999 Saturn SL2 DOHC Engine - Fuel pump not pumping fuel.

The Saturn Fuel pump relay and fuse is located undar the panes on the passenger side of the center console near the passengers left foot there are two relays there that look identical one is fuel pump relay. Just switch them around they are bot the same and see if the fuel pump runs now also the fuel pump fuse is in there i can't send diaagrams on fixya because their program will not let them go through if you need one email me at [email protected] Please give me a fixya rating if this information is helpful to you

SOURCE: 2000 S-10 NO power to fuel pump

check your fuel injectors fuses they tie in with fuel pump.