Emmissions Testing Failed Twice

[Patrick Norris]

I need to get an Ontario E-test on my car to register it. It failed

1st test I changed

both o2s
thermostat
plugs
cam position sensor

2nd test I changed
ECT

Still no pass it fails on the NO or NOX. I can't figure it out. Normally this is the gas taken care of by egr but since I have no EGR I don't know what to do?

I also am still having issues with the coolant guage. Is it possible for a parts store thermostat to be bad in 2 weeks? BTW I would have used a ford part but they have to order it and I didn't want to wait.

Any ideas?

 

[AutoSHO]

High NOx means the car is running lean. Surprising since you've got new oxygen sensors.


Wait, its not surprising, you've got a K&N filter. Clean your MAF, the K&N oil is probably coating the filaments, causing it to run lean.

 

[Patrick Norris]

High NOx means the car is running lean. Surprising since you've got new oxygen sensors.


Wait, its not surprising, you've got a K&N filter. Clean your MAF, the K&N oil is probably coating the filaments, causing it to run lean.

What causes the black soot on the tail pipes? Rich or lean?

 

[Rockledge]

Have you thought about pulling the spout connector for the test? Retards (defaults) the timing to 10* BTDC, which in turn could help bring those NOx numbers down.

 

[CheckerSHO]

thats a good idea on the spout connector I'm in the same boat with my SHO...high in NOx. Hope a pair of 02 sensors and a MAF cleaning will fix er' up :****:

 

[Patrick Norris]

thats a good idea on the spout connector I'm in the same boat with my SHO...high in NOx. Hope a pair of 02 sensors and a MAF cleaning will fix er' up :****:

I could but I think the car should pass the test without doing that. If some guys can pass with a catless y pipe I should be able to pass with cats and good sensors.