1999 Lincoln Continental Fuel System Not Activating

1959MGA1500

MEMBER
1999 LINCOLN CONTINENTAL
V8
FWD
AUTOMATIC
130,000 MILES

Turned car off in driveway, will not start. No DTC code present. No fuel pressure to rail. Changed the fuel pump and Crankshaft pos sensor. Still no pump action.

Power to pins 9 and 7 on fuel pump module. No pwr to pin 1.

Fuel injectors do not pulse. Manually applied power to pump and got gas and pressure to fuel rail. No pulse found at injectors with test light. No clicking sounds at any injector.

The ignition is working - had fire at two separate plugs.

Is there a common link between the activation of the fuel pump and triggering of the injectors. My next tests will be of these items. Any advice in the right direction will be appreciated.

MAF sensor
Camshaft Sensor
PATS system
Lighting Control Module ( This may be bad. The chimes, turn signals, etc do not work. My son's car so I don't know how long they have been out)

9 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

Hi Have you checked inertia switch drivers side "B" pillar behind access door? Is there power to injectors on RED wire?
Let me know
Thanks for donate

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Tuesday, July 6th, 2010 AT 11:13 AM

1959MGA1500

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4 POSTS

Thanks Doc,

Yes, I checked the inertia switch. Power from this switch to pin 9 of the fuel pump module has 12 volts as it should. (Pin 1 has no power - "enable fuel pump output" from pin 80 on the PCM)

Yes, I checked two injectors. Both had power at the red wire.

MAF sensor has power to it also. Have not checked any returns from the MAF.

Have not checked the Cam Pos Sensor, but on this Continental - doesn't the Crankshaft pos sensor trigger the PCM to allow the fuel pump to pump. Also, doesn't the PCM register the last cycle to time & trigger the fuel injectors. If so - what can cause a no trigger to all of them?

Lost in the woods - I am an old car shade tree but all I see are sensors and modules and do not comprehend how they all tie together.

Thanks

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Tuesday, July 6th, 2010 AT 1:08 PM

1959MGA1500

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4 POSTS

Ok, thanks for the help!

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Tuesday, July 6th, 2010 AT 1:52 PM

2 LINSEY

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Monday, July 19th, 2010 AT 12:48 PM

SVILLELLA

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2 POSTS

I had the same issue.
I unhooked the connector to the crankshaft position sensor and jumped it with a paperclip. Pump ran longer and then pumped while cranking.
Connected the plug back up and reinstalled the fuel tank.
Bam the pump runs to prime the systems and the car fired.

I had no fuel pressure. (Pump wouldn't prime or run at all)
Inertia switch not tripped.
Jumped the two sets of wires at the fpdm (1and 2 9 and 10 I believe)
---The pump run no problem
---That told me I had no issue with power to the pump but wasn't getting the power to turn the pump on.
I unhooked the crankshaft position sensor cranked and the pump ran a little when the key was on. Then used a paper clip to jump and tested the pump it was pushing gas.
Hooked the crank sensor back up and now it runs.
Gonnna by a new crankshaft postion sensor and a new fuel pressure regulator (due to hard cranking to start before this issue.)

Thanks for your help guys!

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Sunday, June 8th, 2014 AT 11:37 AM

SVILLELLA