× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1988 Pontiac Sunbird 2.0L Hesitation, Misfire
Posted to GM Driveability on 7/7/1999

This 2.0 motor runs fantastic at idle, but as soon as you come off idle it will start surging and misfiring. My first thought was a bad TPS, but sweep testing it with my Vantage shows good. Observing the data stream while operating the engine in the garage...

  Related Documents & Media  1988 Pontiac Sunbird

 
Message Closed w/FIX

car Vehicle Data

1988 Pontiac Sunbird

VIN 1G2JD11K5J
Engine2.0 L / 4 cyl
EmissionsUS FED
SymptomsHesitation, Misfire
OccursOff-Idle
Message Closed w/FIX

car Vehicle Data

1988 Pontiac Sunbird

VIN 1G2JD11K5J
Engine2.0 L / 4 cyl
EmissionsUS FED
SymptomsHesitation, Misfire
OccursOff-Idle