CPUNLAMD Report post Posted November 10, 2017 So I bring my Gallardo for a smog check in order to register it and tag the car. Test result rejected due to OBD evap, OBD secondary air, oxygen sensor is not ready. After doing some research, this is a common issue if the battery was recently changed. Here is the drive cycle procedure for Gallardo: – Idle the vehicle for 2-3 minutes. This executes the O2S Heater, Misfire, Secondary AIR, Fuel Trim, and Purge system monitors. – Drive the vehicle at 45-55 mph for a continuous 7-minute period, avoid stopping. This executes the EVAP, O2S, Fuel Trim, and Misfire monitors. – Accelerate the vehicle to an engine speed of 5000 RPM and lift off the throttle until the engine speed is around 1200 rpm. This executes the fuel cut off – Accelerate the vehicle smoothly to 60-65 mph, cruise constantly for 5 min, this executes the Catalyst; O2S, Misfire, Fuel Trim, and Purge System monitors. – Decelerate and idle the vehicle again for 3 minutes. This executes the Misfire, Secondary AIR, Fuel Trim, and Purge system monitors. - When repeating the drive cycle operation for a failed EVAP monitor or thermostat-monitor, allow the engine to cool until the coolant temperature and the ambient air temperature are between 10° C and 35° C with a difference between them no greater than 4° C is observed and repeat the drive cycle operation. Apparently these procedures should alleviate any sensors stuck in the "not ready" position. Has anyone had any luck doing this? Quote Share this post Link to post Share on other sites More sharing options...
git54ty Report post Posted February 12, 2018 interesting Quote Share this post Link to post Share on other sites More sharing options...
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