At smog shop guy says 4 problems saying not ready go drive car for 50 miles.did that and still saying not ready

yes, there are specific patterns for each readiness test. But we don't know which readiness monitors aren't set in your vehicle.

disconect battirey for ten min then when you drive it try getting on freeway for ten miles min so computer came reset it self

Generally speaking, the truck has to be driven at least 100 miles in various driving conditions including highway and city driving and at full operating temp. The mechanics are correct in saying there is nothing they can do to trick the system into thinking this has happened.
If 100 miles did not do it you may have to drive 2 or 3 hundred miles then try the test.
The purpose of the computer being "ready" is having used and tested all of the emission components for problems. Once the vehicle is driven far enough for the computer to use all of the components, and no trouble codes are set, the test is passed.
Even if you normally only drive in the city you still have to log 50 or 60 miles on the highway to satisfy the requirement for the engine computer.

Well, the actual procedure is to drive the van far enough to let the engine computer sample a wide range of conditions. The standard method is 100 miles at various speeds including highway and city driving. You could do it in 30 or 50 mile runs but it needs to be over 50 miles total.

if you are failing emmissions test your evaporator canister is expired replace it and then you and your car will get a green light

As a rule it takes about 50 miles for the computer to finish it's readiness tests. Some take longer so I would drive it about 75 miles and then check.

Hi, I found this answer online for you.
"Just drive the car normally for about a week (50-75 miles various driving conditions) and the ready status should be complete to the point where the smog check will show ready. You can ask the smog check technician to check the readiness status before the test is redone to be sure."
Good Luck,
Wayne

unless u are unhooking the battery or its going dead. there is nothing u r doing wrong...normal driving should be all it takes...hope it helps

Try running a tank of Supreme gas & a can of SEAFOAM in the gas tank. It might clear up your problem????? Go chance of it.

It could take more driving always make sure you have between 1/4 -3/4 tank or monitors cant run has anyone checked to make sure the EGR is functioning? Not just the valve but the EGR system?