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1988 Chevrolet Corvette 5.7L Excessive Emissions
Posted to GM Driveability on 7/28/2011 11 Replies

Thanks in advance. Exhaust readings are loded mode. After replacing egr nox went up. Before replacement 807 15mph and 479 25mph. Cleaned all ports for egr and no restriction found. Egr port is not getting as hot as we would expect. Front cats seem to be workin...

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  Related Documents & Media  1988 Chevrolet Corvette

 
Message Closed w/Summary

car Vehicle Data

1988 Chevrolet Corvette

VIN 1G1YY218XJ
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / tune port
Emissionsca. obd1
SymptomsExcessive Emissions
OccursUnder Load
Misc.2 Dr
Message Closed w/Summary

car Vehicle Data

1988 Chevrolet Corvette

VIN 1G1YY218XJ
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFuel Injection / tune port
Emissionsca. obd1
SymptomsExcessive Emissions
OccursUnder Load
Misc.2 Dr