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1994 Ford E-350 Econoline XL 5.8L Sever pinging under load
Posted to Ford Engine on 6/12/2012 21 Replies

Open loop fuel system goes completely lean under load and engine pings badly, fine in closed loop. O2 sensor goes flat line during that time, but works fine other times. Customer claims it started after replacing PCM the first time.

No internal vacuum leaks. ...

21 Replies Received (View Replies)

  Related Documents & Media  1994 Ford E-350 Econoline XL

 
Message Closed w/FIX

car Vehicle Data

1994 Ford E-350 Econoline XL

VIN 1FBHE31H8R
Engine5.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedSever Pinging Under Load
ConditionsLean
Message Closed w/FIX

car Vehicle Data

1994 Ford E-350 Econoline XL

VIN 1FBHE31H8R
Engine5.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedSever Pinging Under Load
ConditionsLean