[Briguy280Z]

86 951 90kmiles

First time this car failed a emissions test. The car doesnt have any modifications, runs good and doesnt smoke.

Emissions test results
836RPM
12.6%CO2
0.0%O2
HC(PPM)
120max 270GP 193Measured
CO(%)
1.0Max 2.50GP 3.51Measured

2517
13.9%CO2
0.1%O2
HC(PPM)
150max 300GP 55Measured
CO(%)
1.2Max 2.70GP 1.26Measured

Used the test proceedure on this site for the O2 sensor. Measured the change of voltage wile running. Starts at .475v and increased but after 30 seconds the O2 voltage starts flipping out drops to 0 and fluctuates between 0 to .9v very quickly not sure what to do but i replaced the sensor with a new generic sensor. Cripped on a new and continues to do the same thing. Some times when starting it in warm temperature the car hesitates on start up. Apply gas and doesnt want to move. After turning on the headlights on and then off the engine runs normally. not sure what to do.

Any suggestions not sure what to look at next
Need help please!!

Brian Griffin