
1999 Ford F-250 Super Duty Lariat 6.8L Poor Fuel Economy
Customer complaint is it lacks power and gets a couple miles to the gallon. I found bank 1 not contributing at all and I believe it is because the coil firing event is way off see picture. Also cylinder #1 there is no coil control from the PCM checked @ PC...
Summary posted 3/31/2020
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VIN | 1FTNW21S8X |
Engine | 6.8 L / 10 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SFI |
Emissions | OBD-II Compliant |
Symptoms | Poor Fuel Economy |
Occurs | Always |
Trouble Codes
P1131 | Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction |
Message Closed w/Summary
Vehicle Data
1999 Ford F-250 Super Duty Lariat
VIN | 1FTNW21S8X |
Engine | 6.8 L / 10 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SFI |
Emissions | OBD-II Compliant |
Symptoms | Poor Fuel Economy |
Occurs | Always |
Trouble Codes
P1131 | Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction |