This is where that GPS comes in handy as I could monitor a constant 62 MPH speed +- 1 MPH on my drive out. This page: Janucompiled from online sources.2024 Acura Integra Type S Review: The Integra You've Been Waiting For Understanding On-Board Diagnostics (from the Illinois EPA):įrom " A Guide to the Illinois Vehicle Emissions Inspection Program" (March Again, don't press the clutch or brakes or shift gears. This will perform the same diagnostics as in step 5. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. Hold a steady speed of 55mph (88km/hr) for five minutes. This will perform the same diagnostics as in step 3. Accelerate at 3/4 throttle until 55-60mph (88-96 km/hr). During this time the EGR, Purge and Fuel Trim diagnostics will be performed. It is important to let the vehicle coast along gradually slowing down to 20 mph (32km/hr). During this time the O2 response, air Intrusive, EGR, Purge, Misfire, and Fuel Trim diagnostics will be performed. Hold a steady speed of 55mph (88km/hr) for 3 minutes. During this time the Misfire, Fuel Trim, and Purge Flow diagnostics will be performed. Turn off the air conditioner and all the other loads and apply half throttle until 55mph (88km/hr) is reached. This will test the O2 heater, Passive Air, Purge "No Flow", Misfire, and - if closed loop is achieved- Fuel Trim. The more electrical load you can apply the better. The engine must be run for two and a half minutes with the air conditioner on and rear defroster on. In order to be classified as a cold start the engine coolant temperature must be below 122☏ (50☌) and within 11☏ (6☌) of the ambient air temperature at startup.ĭo not leave the key in prior to the cold start or the heated oxygen sensor diagnostic may not run. General Motors (specific) OBD II Drive Cycle Allow the engine to idle for 10 seconds, turn the key off, and wait one minute. Decelerate with using the brake by coasting down to 20 MPH or less, then stop the vehicle.Restart and accelerate to 40-55 MPH at 25% throttle and maintain speed for two minutes.
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