× 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
1993 Saturn SL2 1.9L Excessive Emissions
Posted to GM Driveability on 3/21/2008 6 Replies

This car has me stumped. The O2 sensor pattern at 700 rpm idle is a cycling .3 to .8 volt pattern of 140 ms from bottom to bottom which I suspect to be a lean injector or two. The pattern at 15 mph is a dirty signal but is switching from rich to lean. At 25 mp...

6 Replies Received (View Replies)

  Related Documents & Media  1993 Saturn SL2

 
Message Closed w/Summary

car Vehicle Data

1993 Saturn SL2

VIN 1G8ZJ5577P
Engine1.9 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / MPFI
EmissionsCa Emissions
SymptomsExcessive Emissions
OccursHot, Under Load
Misc.Calif Emissions
Message Closed w/Summary

car Vehicle Data

1993 Saturn SL2

VIN 1G8ZJ5577P
Engine1.9 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / MPFI
EmissionsCa Emissions
SymptomsExcessive Emissions
OccursHot, Under Load
Misc.Calif Emissions