Randomly died in traffic, will not start again.

[///digitalme]

just because the pump is vibrating and makes noise doesnt mean its working. mine died and on me on the freeway..it would crank and but no start, swapped in a spare i had in the trunk and viola! it worked....and i was getting fuel and allbefore i swapped the pump, make sure its working properly, also check the connections to the pump...also check your cps and main relay

[330i ZHP]

installed new fuel pump, still no fire...pump doesnt seem to be pumping fuel from tank

I swapped in new fuses on 9 and 11 and replaced the fuel pump relay

I guess I will try a CPS - I need a helper so I can check for spark unless someone can think of way to do it while I turn the key

[mr ilia]

check polarity on the pump. When I was changing my fuel pump I made this mistake.
I heard the pump "working" but the spark plugs were totally dry. It made it to believe the fuel is not getting to the engine....sure enough the wires were reversed and the pump was sucking gasoline out of the engine and back into the fuel tank.

[330i ZHP]

i will give it a shot - but I dont hear or feel the pump at all

[AntiblingE30]

I replaced my fuel filter to no avail. Is there a relay that controls the injectors? And I do not think it can me my MAF because it will not start with it connected or not.

[AntiblingE30]

http://youtu.be/ZHjHotYDhaU

Here's a crappy video, gives you the general idea of what I'm dealing with. Tries to start a little here and there.. idk Im retarded.

[330i ZHP]

replaced the CPS and the car started. cleaned the old cps and reinstalled - car starts and runs fine

I guess that was the problem? I dont know...ugh, I dont like the uncertainty

[AntiblingE30]

SOOO, glad you got your shit figured out. Anyone take a look at that video and have any idea at what I may be facing? Tore the intake and above parts today and found a minor fuel leak on the incoming line from the fuel pump (know this would not be my issue).

What I mainly need to know is what sensors would cause the car not to star, considering I do have spark and gas. The inside of my MAF looks semi-coroded and I cleaned as much as possible, but I do not believe that a malfunctioning mass air flow sensor would cause the car to not start at all... Is there a way to test if the fuel pump is just on it's way out? I am positive that it is pumping, but not sure if it is efficient for all four injectors...



HELP. TIRED of driving my shitty GMC Sonoma 2nd car. :hitler: