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1998 GMC Savana 3500 5.7L Poor Idle Quality, Cuts out
Posted to GM Driveability on 5/9/2003 6 Replies

This van runs fine in open loop after starting. As the van warms up and enters closed loop, B1-S1 and B2-S1 remain high at over 1 volt. B1-S3 begins to switch normally. Shortly after achieving closed loop, the short term fuel trim will decrease to 86 on both b...

6 Replies Received (View Replies)

  Related Documents & Media  1998 GMC Savana 3500

 
Message Closed w/Summary

car Vehicle Data

1998 GMC Savana 3500

VIN [No VIN Available]
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / csfi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out
OccursCold
Message Closed w/Summary

car Vehicle Data

1998 GMC Savana 3500

VIN [No VIN Available]
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / csfi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out
OccursCold