Car will not start?

[BFeller]

Fuel pressure pump cuts off if the engine does start for safety reasons. Durametric or the RPM Gauge doesn't register until the engine is turning over 800 RPM - one or the other - I can't remember. The starter doesn't turn the engine fast enough to register. My CPS quit without a single hiccup. The car started - an hour later nothing.

My fuel rail would build pressure - if released - when the pump ran for the short burst it would build pressure. So for me that ruled out fuel delivery issues.
If I remember correctly - there was compression - so I semi ruled out timing.
No error codes showed up in the Durametric to indicate any other issues.
So I tossed in a Pelican CPS. She started fine after it was installed.

[Timco]

Originally Posted by BFeller

Fuel pressure pump cuts off if the engine does start for safety reasons. Durametric or the RPM Gauge doesn't register until the engine is turning over 800 RPM - one or the other - I can't remember. The starter doesn't turn the engine fast enough to register. My CPS quit without a single hiccup. The car started - an hour later nothing.

My fuel rail would build pressure - if released - when the pump ran for the short burst it would build pressure. So for me that ruled out fuel delivery issues.
If I remember correctly - there was compression - so I semi ruled out timing.
No error codes showed up in the Durametric to indicate any other issues.
So I tossed in a Pelican CPS. She started fine after it was installed.

So, scenario. Key is turned but no crank. Doesn't the fuel pump instantly make 55lbs or 3.8 bar? I'm not getting any pressure at all.

Second, Bently described how to pull the fuel pump relay, and jump the two terminals that would kick the fuel pump on, but I can't make it run with key in or out or turned to run position.

Bought new battery just in case.

[BFeller]

Originally Posted by Timco

So, scenario. Key is turned but no crank. Doesn't the fuel pump instantly make 55lbs or 3.8 bar? I'm not getting any pressure at all.

Second, Bently described how to pull the fuel pump relay, and jump the two terminals that would kick the fuel pump on, but I can't make it run with key in or out or turned to run position.

Bought new battery just in case.

I don't recall how much pressure it would build. I was running off of data from Bentley or 101 Projects.

[Jamesp]

I'm not versed enough in the fuel system to know that this is correct, but it sounds a whole lot like a pump problem, pump not running with startup power and zero fuel pressure. That said, you are using and AC Schrader fitting to measure the fuel rail pressure and the AC Schrader fitting may not depress the valve core in the fuel rail Schrader valve sufficiently to allow a pressure reading. One way to find out is to depress the Schrader valve core to see if fuel comes out. If the system is up to pressure the pump may not run when the key is initially turned on.

[Timco]

Originally Posted by Jamesp

I'm not versed enough in the fuel system to know that this is correct, but it sounds a whole lot like a pump problem, pump not running with startup power and zero fuel pressure. That said, you are using and AC Schrader fitting to measure the fuel rail pressure and the AC Schrader fitting may not depress the valve core in the fuel rail Schrader valve sufficiently to allow a pressure reading. One way to find out is to depress the Schrader valve core to see if fuel comes out. If the system is up to pressure the pump may not run when the key is initially turned on.

I absolutely tried manually depressing the stem and zero fuel. Nada.

In the words of Ted Striker.........

What a pisser.........