Bear with me.
Somewhere in here, I realized I can't read.
Originally Posted by civiczzz
but with how exhausting this diagnostic has been I want to be rdy to go with a new plan if i still cant get it to stay on.
Throwing parts at it is not diagnosis.
An engine needs compression, fuel, and spark. In the correct amounts, and at the correct times. Which is missing when it dies?
A simple $3 test light (or less for a light bulb and 2 wires), a wiring diagram, and a little knowledge of how it all works:
Inspecting for power and ground for the fuel pump right at the tank connector should tell what the next step is (for me).
If the pump isn't powered up as the engine stumbles and dies, then the main (pump) relay is suspect. Continue the next test at the relay. Is it switching power? Is that relay getting turned on at the right times? Bark up the tree to reach the source of the problem.
If it stays powered up until the engine stops, then the pump is suspect. Fuel pressure checks should tell the rest of that story.
You said you have a fuel pressure tester?
Does it reach proper pressure when running?
Will it hold residual pressure after the pump stops running? (This checks check valves and leakage in the pressurized side of it.)
HINT: The original pumps rarely go bad. Filter may clog, pressure regulator might go bad, but the pump itself is extremely rare here.
Running for only a few seconds then stumble and die, sounds like the pump didn't get turned on. That's my theory, now I would prove or disprove my theory.
I live in Az so the summers get pretty warm here (110-115 within a month or 2).
The interior can reach 180-200 on a hot day, in the sun, almost anywhere. So does the engine compartment.
crankshaft pos sensor? Ive been told I can unplug and start engine (if it stops stalling, this is your problem),
You can try this on the CAM sensor (CMP). If it runs with the sensor unplugged, then it has probably jumped time. (But this should probably set a code, so I doubt this is it.) A 7th gen (DIS, COP) shouldn't run at all with the crank sensor unplugged.
buying the cheapest pump off ebay i could find |
do you see any link between the issues Im having?
Did you mean a link between the radio and windows?
I still don't see a connection at this time. Once the answers are figured out, maybe a common denominator could be found.