The car runs great for days at a time then all of a sudden it will stumble a couple of times and stall. some times it just stalls as if the key was shut off and no stumble. This always happens off throttle at idle.
Things I have checked.
compression 150 on all 4 cylinders.
fuel pressure 25 to 40 psi doesnt bleed down during the stall.
idle air control not causing the stall.
TPS and wiring checked and set correctly.
No vacuum leaks. 15 inhg at idle at 6500 feet above sea level.
igniter signal power ground good.
coil pack tests good and spark does not seem to drop off during the stumble/stall.
MAF replaced and didnt fix the stall. wiring checks good.
MAP sensor reads around 6 inhg at idle but koeo it reads 0.0 inhg?
Any ideas?
05-07-2025, 10:20 AM
95 legacy automatic 140,XXX miles
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