Hello everyone, I am new to posting in this forum but have been to the site several time.

I was wondering if someone could help me with an emissions problem we are having on our company truck. It is a 2006 F-150 with the 4.6L V-8. We are trying to get it inspected and it keeps showing "catalyst not ready" and "evap not ready" on the screen at the inspection station. The truck sat for a long time till now and we have not done anything but recharge the battery. After the first failure at the inspection station we checke dthe air filter, cleaned out the throttle body with B-12 and poured some B-12 in the tank then took it on the highway for 45 min or so. It still shows the same problems. It is not showing any check engine lights and the truck seems to run great.

If anyone has had these same problems please let me know so we know where to look next.

Thanks,

Drew

 

To get an idea, it works like this for my model-

The recommended OBD II drive cycle begins with a cold start (with coolant temperature below 122 degrees F and the coolant and air temperature sensors within 11 degrees of one another).

NOTE: The ignition key must not be on prior to the cold start otherwise the heated oxygen sensor diagnostic may not run.

As soon as the engine starts, idle the engine in D for two and a half minutes with the A/C and front and rear window defrost on.

OBDII checks oxygen sensor heater circuits, air pump and EVAP purge.

Turn the A/C and front/rear defrost off, and accelerate to 55 mph at half throttle.

OBDII checks for ignition misfire, fuel trim and canister purge.

Hold at a steady state speed of 55 mph for three minutes.

OBDII monitors EGR, air pump, O2 sensors and canister purge.

Decelerate (coast down) to 20 mph without braking.

OBDII checks EGR and purge functions.

Accelerate back to 55 to 60 mph at ¾ throttle.

OBDII checks misfire, fuel trim and purge again.

Hold at a steady speed of 55 to 60 mph for five minutes.

OBDII monitors catalytic converter efficiency, misfire, EGR, fuel trim, oxygen sensors and purge functions.

Decelerate (coast down) to a stop without braking.

OBDII makes a final check of EGR and canister purge.

Test complete.

You need to check the FORD OBD Drive cycle or google for model specific.

Check this as well. - http://www.obdii.com/drivecycleford.html

 

We will try to get through the drive cycle and then get it inspected again.

I appreciate the help.

Drew

 

Auto Zone scans for free - A scan will tell you what monitors haven't run. - Keep it above a half tank. There is a slosh factor - Drive easy as well.

Good Luck.