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1993 Ford F-250 XL 5.8L Excessive Emissions, no EGR operation
Posted to Ford Driveability on 10/22/2004 4 Replies

Hi Fellow Techs,

Got one here with high NOX readings. Teed a vacuum gauge to the EGR hose, test drove- no vacuum supplied to open valve. Hooked up Smithtronics EGR tester and energize the solenoid- vacuum flows, EVP volts go high, engine stalls out from valve...

4 Replies Received (View Replies)

  Related Documents & Media  1993 Ford F-250 XL

 
Message Closed w/FIX

car Vehicle Data

1993 Ford F-250 XL

VIN 1FTHF25H0P
Engine5.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / PFI
EmissionsCalifornia emissions
SymptomsExcessive Emissions, No EGR Operation
OccursAlways

Trouble Codes

327EVP sensor below .29 volts
328EVP voltage did not go high enough when commanded by PCM
Message Closed w/FIX

car Vehicle Data

1993 Ford F-250 XL

VIN 1FTHF25H0P
Engine5.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / PFI
EmissionsCalifornia emissions
SymptomsExcessive Emissions, No EGR Operation
OccursAlways

Trouble Codes

327EVP sensor below .29 volts
328EVP voltage did not go high enough when commanded by PCM