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1996 Acura TL Question: Drive Cycle Issues: Readyness Code Reset

 

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Visitor, 3.2L V6, Houston, TX, April 19, 2010, 13:16

I have contacted local shop in Houston area to find out how to reset readyness codes on 96 Acura TL and he sent me a sheet that explained that after reseting computer it would be nessesary to drive the car per these instructions.

Step 1
(Engine Cold) Start engine, idle 20 seconds. Accelerate gradually and drive at 20-25 mph for 1 minute, varying speed.

Step 2
Accelerate gradually to 32 mph within 35 seconds. Decelerate to 0 mph in 10 seconds. Idle for 40 seconds.

Step 3
Accelerate at part throttle to 25 mph in 10 seconds. Cruise at 17-25 mph for 15 seconds. Accelerate gradually to 57 mph in 45 seconds. Cruise at 50-56 mph for 1 minute. Decelerate gradually to 0 mph in 40 seconds. Idle for 15 seconds.

Step 4
Accelerate at part throttle to 36 mph and maintain for 10 seconds. Decelerate to 0 mph in 15 seconds. Idle for 5 seconds.

Step 5
Accelerate to 30 mph and back to 0 mph within 30 seconds. Idle for 20 seconds.

Step 6
Accelerate to 36 mph in 20 seconds. Drive at 35 mph for 20 seconds. Decelerate to 0 mph in 15 seconds. Idle 5 seconds.

Step 7
Accelerate gradually to 26 mph and decelerate to 0 within 40 seconds. Idle 15 seconds.

Step 8
Accelerate to 27 mph in 40 seconds. Decelerate to 0 mph in 10 seconds. Idle 25 seconds.

Step 9
Accelerate to 26 mph in 15 seconds, maintain speed for 10 seconds, decelerate to 0 mph in 10 seconds. Idle 15 seconds.

Step 10
Accelerate to 23 mph in 20 seconds, decelerate to 0.5 mph in 10 seconds (no complete stop). Accelerate to 28 mph and back to 0 mph (momentary stop 1 second) within 35 seconds.

Step 11
Accelerate gradually to 34 mph in 45 seconds. Vary speed between 34 and 19 mph for 2 minutes. Decelerate from 25 to 0 mph in 25 seconds. Idle for 5 seconds.

Step 12
Accelerate to 29 mph in 15 seconds, decelerate gradually to 0 mph in 45 seconds. Idle for 30 seconds.

Step 13
Accelerate gradually to 28 mph and back to 0 mph (momentary stop 1 second) within 50 seconds. Accelerate gradually to 27 mph and back to 0 mph within 55 seconds. Idle for 15 seconds.

Step 14
Accelerate to 24 mph and back to 0 mph within 18 seconds. Idle for 10 seconds. Accelerate gradually to 22 mph and back to 0 mph within 50 seconds. Idle for 8 seconds.

Step 15
Accelerate gradually to 30 mph within 50 seconds. Decelerate to 0 mph in 10 seconds. Idle for 25 seconds.

Step 16
Accelerate to 23 mph and back to 0 mph within 30 seconds. Idle for 10 seconds.

Step 17
Repeat steps 1 - 16 once again. Recheck the status of the "Readiness Monitors".

The codes that need reseting are the EGR, Catalitic, and Oxygen sensors. I need to know which one of the drive cyle tests would eliminate the codes and do I need to start from a cold state and go into the test. I have several light and stop signs to get to before I can drive the car at a steady speed. Would driving the car a few miles affect the tests? Could this be done on one of those dinamometer roller things that keep the car in one spot? Help!

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, May 26, 2010, 23:49
     Master

    Try looking at these articles, they address many of the issues with difficult drive cycles:
    http://repairpal.com/drive-cycle-emissions-readiness
    http://repairpal.com/Drive-Cycle-Issues
    http://repairpal.com/drive-cycle-how-to-perform-a-basic-drive-cycle

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