Evap system monitor not ready code#

I have completed the drive cycle a couple times already, but to no avail, fuel tank kept at half tank. '99 740iL, no engine lights, no codes, engine purring like a kitten, lots of power across the powerband. There's got to be a source of solid info on OBDII out there somewhere, but I haven't found it yet.I hope someone can reply to this old thread, I've been having the exact same issue with my evap system not ready. How heavily modified vehicles pass, I don't know. It's not definitive, but it was the best info I could find on the subject. I found info on some other makes while searching, and they all seem to be different in the details. JacksonMoto: I think that sheet is BMW-specific. I'll be digging into this more in the spring. I completed the drive cycle prescribed in the docs to the letter to no avail: system still shows 'Not Ready.' Does anyone have specific knowledge of the inner workings of how OBDII completes this check so that I can sort out exactly what's going on? Research has suggested that this is likely due to something in the valves or plumbing that make up the evap system. (Of course if that solves the problem, I'm going to seem quite the idiot, but I digress.) The procedure to complete this test is three minutes of idling on a cold engine - while I haven't specifically done this (I'm going to do it tomorrow just to be sure, but.) I'm certain that at some point in the last four months I've idled the car cold for three minutes. Basically I just want to understand the cause.

According to what I've read, the car will pass NYS inspection with one check incomplete, so I'm not worried about that. There is no SES, no active or stored codes, and no driveability issues whatsoever. After completing the drive cycle, all the emissions monitors, include the EVAP monitor, were complete.Trying to figure out why my car lists OBDII status as 'Not Ready' due to Evaporative System Monitoring not completed. In the morning, he followed the drive cycle procedure exactly. The drive cycle instructions must be followed exactly, or all the monitors may not run.Ĭonfirmed Repair: The technician let the vehicle sit overnight to ensure a cold soak. Important: This drive cycle will terminate if engine RPM exceeds 3000 at any time, if road speed exceeds 60 mph, or if there are any fluctuations in throttle angle. Idle engine in gear (Drive) for 5 minutes.Ī Tech-Assist consultant provided the drive cycle (shown above) that he believed would get all the monitors to run. Accelerate to 40-60 miles per hour and hold steady speed for 15 minutes.Accelerate to 20-30 miles per hour and maintain steady speed for 3 minutes and 15 seconds.Start engine and let idle while cold for 2 minutes and 10 seconds.

Since Mini does not seem to publish drive cycles for the emissions monitors, the technician reached out to ALLDATA Tech-Assist for help.ĭrive Cycle – Mini Cooper S Clubman, 1.6L Turbo There were no DTCs set, pending, or in history. The technician checked parameter identification data (PID) information with a scan tool. After driving the car about 295 miles, the customer brought the car back to check the emission monitors. The technician suggested that the customer drive the car for a couple of hundred miles to get the monitor to complete.

Evap system monitor not ready code#

After the converter was replaced and the diagnostic trouble code (DTC) cleared, the evaporative (EVAP) emissions monitor would not run to completion. The problem was a bad catalytic converter. Problem: A customer brought his Mini Cooper to the shop because the malfunction indicator light was on. Vehicle: 2010 Mini Cooper S Clubman, L4-1.6L Turbo (N14), Automatic Transaxle