× 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 SE 2.0L Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy
Posted to GM Driveability on 9/4/2008 8 Replies

Hi:

Vehicle originally had a rapidly fluctuating fuel pressure of 9-13 psi about 4 times per second with a block learn of 145 at all RPM, lean exhaust, hesitation, no acceleration, tendency to backfire. Pressure regulator/spring also fluctuating @ 4 HZ, in s...

8 Replies Received (View Replies)

  Related Documents & Media  1988 Pontiac Sunbird SE

 
Message Closed w/Summary

car Vehicle Data

1988 Pontiac Sunbird SE

VIN 1G2JD11K2J
Engine2.0 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / TBI 700 Single point
EmissionsUS Fed
SymptomsPoor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy
OccursAlways, Cold, Hot, on Accel, Idle
Message Closed w/Summary

car Vehicle Data

1988 Pontiac Sunbird SE

VIN 1G2JD11K2J
Engine2.0 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI / TBI 700 Single point
EmissionsUS Fed
SymptomsPoor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy
OccursAlways, Cold, Hot, on Accel, Idle