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1994 Ford F-150 XL 4.9L Excessive Emissions
Posted to Ford Driveability on 3/23/2004 14 Replies

This thing is failing the emissions test for CO and HC. Hot, idle it runs at 9-10% and 1900ppm HC. When first started, computer tries to lean it out, but never gets below 3.5% CO. Watching pulse width it runs down to 5.3 ms before the computer gives up and goe...

14 Replies Received (View Replies)

  Related Documents & Media  1994 Ford F-150 XL

 
Message Closed w/FIX

car Vehicle Data

1994 Ford F-150 XL

VIN 1FTEF14Y2R
Engine4.9 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MFI
EmissionsUS Fed
SymptomsExcessive Emissions
OccursAlways

Trouble Codes

173HO2S indicates rich
Message Closed w/FIX

car Vehicle Data

1994 Ford F-150 XL

VIN 1FTEF14Y2R
Engine4.9 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MFI
EmissionsUS Fed
SymptomsExcessive Emissions
OccursAlways

Trouble Codes

173HO2S indicates rich