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1992 Ford Probe Hard to start, no codes

Tiny
CYWEBB42
  • MEMBER
  • 1992 FORD PROBE
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 143,000 MILES
Hard to start, but will idle after engine warms up. When accelerating, sluggish but runs good a 3000 rpms. Tested fuel pressure at 39 psi. KOEO. When key is in on position, no priming of the injectors. Have replaced spark plugs and their wires, replaced fuel filter, and added fuel injector cleaner. Could there be more than one problem?
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Monday, February 1st, 2010 AT 1:42 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Your fuel pressure is way too low-should be 64-85psi KOEO-I'm thinking fuel pump

Test the engine coolant temperature sensor, idle air control valve/mtr/ISC, ECC power relay and the fuel pump relay
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Monday, February 1st, 2010 AT 2:18 PM
Tiny
CYWEBB42
  • MEMBER
  • 4 POSTS
Haynes Repair Manual for 1992 Probe that I have shows fuel pressure for a 2.2 liter to be 34 to 40 psi. My pressure reading is 39 psi. It says the 3.0 liter has 64 to 85 psi. Do you still think it is the fuel pump?
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Monday, February 1st, 2010 AT 8:57 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
KOEO on 2.2L engine-See below


https://www.2carpros.com/forum/automotive_pictures/12900_fp_22.jpg

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Monday, February 1st, 2010 AT 9:04 PM

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