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Failed Smog Test
 

1997 Chrysler Sebring 2.5 Liter Did Not Pass Smog

The smog check center said my Chrysler Sebring did not pass the OBD II system check because its OBD system was not ready to test. They couldn't tell me the reason or how to go about fixing it cause she didn't speak English very well. How do I set the emission monitors and make the OBD system ready for the smog test? Thank you very much in advance.


Answer:  

If your Chrysler Sebring recently had its battery disconnected and re-connected or your Sebring received emissions related repairs, necessary emissions information "Readiness Flags" (also known as "Monitors") are erased from the engine computer memory and OBD II system. These flags indicate the State required emissions components are present and working properly. Only after this internal "Readiness" test is conduct can a vehicle pass a smog inspection. Depending on how much driving you do, in order for a vehicle's Engine Control Unit to set all the necessary "Monitors", your Chrysler Sebring must be driven 1 to 2 weeks in order for the proper readiness flags to set.

If your vehicles battery has been recently removed/replaced/disconnect-reconnected, or your vehicle has receive emissions related repairs, consider driving it for at least one week before taking or re-taking a smog test.

Below you will find a generic OBD drive cycle which should set your Chrysler Sebring Emissions Monitors:

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 Dodge Ram 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. 

- 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 monitors required to pass the smog check. It will not hurt to perform the drive cycle 2 or 3 times before the smog inspection. Take caution when performing drive cycles on public roadways.


posted by SmogTips Support
 


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