1994 Mercury Cougar No Fuel

Tiny
DON33952
  • MEMBER
  • 1994 MERCURY COUGAR
  • V8
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
Fuel pressure absent at injectors. Checking fuel emergency/inertial shutoff switch. Switch has no voltage when plugged into harness and one wire in harness has only 6 volts when switch is unplugged. Is this wiring an input to a high impedance relay circuit that actually does the switching on/off of voltage to fuel pump or does one of these wires go directly to the fuel pump? Thanks.
Friday, January 16th, 2009 AT 9:04 PM

6 Replies

Tiny
ISLAND_PRIDE71
  • MEMBER
  • 62 POSTS
Turn key On @ the inertia fuel cutoff switch, check for power on the pink and black wire. Do you have power? Let me know.
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Friday, January 16th, 2009 AT 11:12 PM
Tiny
DON33952
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  • 5 POSTS
Switch has no voltage when plugged into harness and one wire in harness has only 6 volts when switch is unplugged.
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Saturday, January 17th, 2009 AT 8:28 AM
Tiny
ISLAND_PRIDE71
  • MEMBER
  • 62 POSTS
When you turn key to run you should hear the fuel pump relay click-if not check the computer control of the relay.

At the inertia switch I want you to jump the pink and black to dark green and yellow-did the fuel pump come on-if not test the fuel pump relay
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Saturday, January 17th, 2009 AT 5:37 PM
Tiny
DON33952
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  • 5 POSTS
Can not locate fuel pump relay. Thought it would be in the "high current fuse box" but it is not!
Any sugestions? By the way. Thank You very much for the help so far!
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Sunday, January 18th, 2009 AT 9:08 PM
Tiny
ISLAND_PRIDE71
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  • 62 POSTS
Fuel Pump Relay is integrated within integrated relay control module
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Monday, January 19th, 2009 AT 6:23 PM
Tiny
DON33952
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  • 5 POSTS
Thanks. The IRCM (Integrated Relay Control Module) just in front of the air filter, front of the car, passenger side according to WikiAnswers in case someone else is having same problem finding it.
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Monday, January 19th, 2009 AT 9:35 PM

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