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Had to jump start, when tried to get emission insp I was told it would have to go through drive cycle to pass what is this
Was told to drive up 100 miles and then vehicle needed dark time and then drove again. they reset the computer first then said to start drive cycle. never heard of this. why can't computer reset be enough
Re: had to jump start, when tried to get emission insp I...
Cars do have a drive cycle to clear up a fault. It more less ensures the issue has been corrected after a certain drive cycle. Some issues have to cycled for 500 miles.
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Disconnecting the battery resets the PCM - engine computer ,an the emission monitors . A drive cycle has to be done to get the monitors to run an hopefully set. That's all you need to do is drive it for few days of different driving conditions - city , highway ,from cold start . google GM drive cycle . OBD Monitor Not Ready
hi
generally the catalic converter get oily especially if the car is used
around the town the best thing to do from past experience is to drive the car down the motorway at 60mph. for good 3/4 hour at high revs
third gear if 4 gear motor you get the meaning this way you burn the oil
out because lots more heat is crated once this is done youshould pass the emission. happy driving
I think you mean drive cycle not complete.
Generally the van needs to be driven 50-100 miles at both city and highway speeds. The distance needs to start when the engine is at operating temp, and the speed needs to vary including stop and go city. It does not have to be all in one trip but the engine must be warmed up first.
Sometimes the emission light will come on if the gasket on the gas cap is worn or dirty, thus not sealing properly. If it doesn't look worn, then try cleaning it.
Chevy of this model has to be driven 80-100 miles at least to reset the emissions this is if everything is good and all aspects pass and become active this will happen if all is well during the driving cycle each component will start coming on line.Remember to rate my solution this is how i earn my achievements also testimonial Thanks much in advance.
you may have a vacume leak. feel around and make sure all hose's are connected. especially the one between the intake manifold and the firewall. also change the PCV valve. allways start with the cheapest items to fix before you move on to more pricely tasks.
Under the hood, there is a fuse block. I believe it is on the driver's side of your vehicle. Open that box, and pull the "ECU" fuse. Leave the fuse out for at least 5 minutes. Put the fuse back in, start the car, and let it idle for at least another 5 minutes. Do not drive the car, touch the gas, or even look at the gas pedal for these 5 minutes, as the ECU is remapping itself. This will properly reset the ecu and clear the codes. After this you may drive the car.
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