What is your question?
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What is your question?
My car's check engine light was glowing for almost a month. I finally repaired it. The repair shop (Midas) replaced my Oxygen Sensor AF type, Thermostat and coolant. My engine light is off now. But the repair shop advised me to drive atleast 100 miles and revisit them for a readiness check. I want to sell my car and need to do a smog check immediately. Was the advice correct - i.e. to drive 100 miles? Or the reality is - to complete couple of drive cycles (which won't be more than 10-15 miles each, as per your explanation)? The repair shop also told that the car has a good amount of oil leakage problem. Will it impact my smog test outcome?
2 Replies
It's usually after 3 ignition cycles that the vehicle will be ready after reaching operating temperature. You can drive 100 miles on one cycle and it won't be ready. Sorry globalhelper but speed has nothing to do with it.. the PCM (power control module) or ECU (engine control unit) monitors all systems at different temperatures not different speeds. If the vehicle has ABS there's a seperate data link connector found under passenger side engine compartment near the firewall to diagnoise the braking system. As for the oil leaks that has nothing to do with passing or failing a smog test unless the leak has an impact on the vehicles performance such as oil leaking into the spark plug tubes which the oil will cause a slight misfire which can cause the vehicle to run rich....meaning the gas in that cylnder is not completely burned up causing excessive air/"fuel" ratio monitored by the o2 sensors.
approx 50 to 100 miles at all diff speeds. it must be driven on the freeway and have approx 1/2 tank of gas for evap monitor to reset
