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1995 Pontiac Firebird Formula 5.7L Excessive Emissions
Posted to GM Driveability on 11/12/2013 17 Replies

Hello~ Vehicle failed emissions testing due to high NOx, We try must of possibility, like replaced fuel pump (was hard start), o2 sensor, egr valve & solenoid, & ecm. when testing with dyno, egr solenoid duty is not acting, 0 % , Only it work when sudden-accel...

17 Replies Received (View Replies)

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Message Closed w/Summary

car Vehicle Data

1995 Pontiac Firebird Formula

VIN 2G2FV22P3S
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsNot OBD-II Compliant
SymptomsExcessive Emissions
Misc.2 Door Coupe
Message Closed w/Summary

car Vehicle Data

1995 Pontiac Firebird Formula

VIN 2G2FV22P3S
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsNot OBD-II Compliant
SymptomsExcessive Emissions
Misc.2 Door Coupe