most common cause

1999 MERCURY SABLE STATION WAGON
124,000 MILES
Avatar
CRASH1961
  • MEMBER
  • 1 POST
has set fault codes (p0174,p1151,p1131,p0171)stalls and run very bad when cold after driveing and car warmed up run fine doesnt stall
Jan 5, 2012 at 8:55 PM
Advertisement
Avatar
FIXITMR
  • CERTIFIED EXPERT
  • 9,990 POSTS

Electrical:
Short to VPWR in the harness or HO2S
Water in the harness connector
Open/shorted HO2S circuit
Corrosion or poor mating terminals and wiring
Damaged HO2S
Damaged PCM

Fuel System:


Excessive fuel pressure
Leaking/contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system
Induction System:
Air leaks after the MAF
Vacuum Leaks

PCV system:
Improperly seated engine oil dipstick
EGR System:

Leaking gasket
Stuck EGR valve
Leaking diaphragm or EVR

Base Engine:
Oil overfill
Cam Timing
Cylinder compression
Exhaust leaks before or near the HO2S(s)
Jan 5, 2012 at 9:15 PM