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Forum > Failed Smog Test > Question

1999 Chrylser Town and Country Setting Emission Monitors

I have a 1999 chrylser town and country lxi 3.8 v6 it failed ca star certified smog because some of my monitors have not reset.

2 monitors in particular have not reset.The converter and evap system.I need those drive cycles can u help?


Answer:

We have included below the Generic OBD II Drive Cycle required to complete your Chrysler Town and Country emission monitors.

This OBDII drive cycle begins with a cold start (coolant temperature below 122 degrees F). We recommend achieving this by letting your Chrysler cool down overnight, and beginning the drive cycle process the next day. Take extra caution while performing drive cycles on public roadways. Drive cycles can be difficult to follow under normal driving conditions. 

Begin by: (Make sure you have between 1/4 and 3/4 fuel in the gas tank. The EVAP test will not run while your Chrysler Town and Country has a full tank of gas or the gas tank is near empty) . 

- Start the engine. Idle the engine in drive for two and a half minutes with the A/C and rear defroster on. 

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

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

- Decelerate (coast down) to 20 mph without braking or depressing the clutch. 

- Accelerate back to 55 to 60 mph at ¾ throttle. 

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

- Decelerate (coast down) to a stop without braking.

 If all other emissions systems are functioning properly, completing the drive cycle above should set the "readiness flags" required to pass the smog check. It will not hurt to perform the drive cycle 2 or 3 times before the smog inspection.


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