Wihte and blue smog - 1994 Mazda MPV

How can I hook up a smog pump to it?

How old does a car have to be to not have to smog?
30 years old
1975 & Older Exempt - Under the old smog laws, 1975 and subsequent model year vehicles became exempt from Smog Check when they turned 30 years old (30-year rolling exemption). A 1976 model year vehicle was exempt in 2005, a 1977 in 2006, etc.
Your car was 30 years old in 2015.

please elaborate.

ahhhhhh, your reading warranties.. (i must really strain my brain)
that means all parts, tha't cant cause SMOG.
like hub caps.
and 2500 other parts.
the smog parts are the short list.
CAT, EFI, fueling ,spark, and parts that can make smog, EGR, PCV. and EVAP. or cause huge FUELING rate, errors. Injectors.,
Spark and EFI. + smog.
or say , engine controls and smog devices.
The dealer has this list. its in the fine print on all warranty's

Blue indicates a lot of engine oil is being burned, black would mean too much fuel, and white would mean excess water/coolant. Being as it's blue, it could be any one of a number of things, all internal in the engine. Could be bad oil rings, valve guides, stem seals, etc. I suggest an engine shop to properly determine the cause. Might just be a plugged pcv system that just needs cleaning, you never can tell from the outside. Is there a lot of oil in the air cleaner assembly? If with the engine running, you carefully remove the oil fill cap, is there a lot of pressure/gasses escaping? There shouldn't be.

what color smoke? White usually water, blue, likely oil. Bad EGR or PCV valves, Blown head gasket, valve guide seals. Need to do a compression test.
if its black smoke I would suspect a fuel issue. several things will cause this... need diagnosing. If its white smoke you could have a severe issue and it needs to be diagnosed. If its grey smoke you may have oil entering the cylinders and need it to be looked at. If the car is not in your name yet and you need a smog test its the previous owners responsibility by law to fix this. You cant change ownership till it passes smog.

remove smog control unit and buy a differant belt

THe blue smoke is oil, a considerable amount leaking into the combustion chamber and burning, either valve stem seal or piston rings. Check your oil and add regularly to prevent an engine seizure.
Also, you transmission need to be rebuilt.

grey smog is grey/black or grey/blue

Blue smoke is not a good sign..it usually means that the piston rings are shot, or the engine is old worn and tired. Is the car using more oil than average? if not...and the engine performs o.k and you pass smog... then i"d say dont worry about it too much. But if you start to see blue smoke constantly, it's time to purchase another engine..its cheaper than buying another car.

There are fuses under the hood on passenger side and inside the van. Ours quit working and my husband figured out it was the switch.