I have a 1994 VW Jetta, 2.0 liter engine. My car failed visual inspection at a smog testing site. According to them, there were no hoses attached to the pcv valve. The car had, had previous work done on it, and the hoses were never reattached. I cannot find answers in the Chilton Book on pcv valve. If I were to get the hoses where to I attach them to? There is one male connector attached to the pcv valve, and there are one male connectors coming from the engine itself going into the firewall of the car

There is a smog pump on that car and it injects air into the engine to reduce emissions. The pump has hoses and valves that are hooked to it. The hoses can become pinched or brittle and crack, the valves can fail or stick or the pump has a problem. The sensor can also fail or have wire issues.

The smog check requires a visual inspection of your check engine light. It has to come on for a bulb check at startup to make sure it's working. But, the light must go out after starting the engine(it cannot stay on after the engine starts during a smog check). If the check engine light fails either of these two tests, the vehicle will fail the smog check inspection.
You need to have the cause of your inoperative check engine light diagnosed and repaired.

ALWAYS PERFORM TESTS AND REPAIRS ON THE FIRST DTC AND RETEST AFTER EACH STEP.ONE SENSOR OR COMPONENT FAILURE CAN CAUSE OTHERS TO FAIL AS A RESULT.MEANING THE FIRST CODE COULD HAVE CAUSED THE OTHER CODES TO CYCLE.SO ALWAYS DIAG THE FIRST CODE STORED AND EACH ONE AFTER AS THEY WERE READ DURING THE SCAN

remove the hose to the PCV and It simply pulls out and a new one is pushed in and hose is inserted back on. It's kind of like a cork. I can not believe they check for visual inspection. Here in SC, we don't have inspections. But anyways, GOOD LUCK

Bring the car into a repair shop and have them pressure test it for leaks or you can purchase a pressure tester make sure you get the appropriate adapter for your cars radiator filler neck or resovoir, and check for leaks yourself. Make sure the car is cold and there is the appropriate mixtiure of coolant and water in the system, prior to pressure testing. Also do a visual inspection of the cooling system when the vehicle is cold and look for leaks.

Hallo
1.Disconect lower hose from intercooler and oil (from 0,1 liter or more) (sometimes 1-2 liters) comes out, you should not drive it.(car had probably loose power) Change the turbine, oil and oil filter. do not forget to disconect lower hose and let oil drain out. Otherwise when new turbine is instald, the air flow will **** this oil inside the engine and distroy it.
2.your car is not designed to run without turbine and will not work like normal disel.(SDI).
hope it helps
Marko

Engine need service or a faulty sensor, change oil and filter check sensors, if looks good, do not worry about it.

I had a similar experience with a different car and it was something (can't remember) that was unplugged under the car that sent info from the rear wheels to the computer.

the no data error can be contributed to a bad interface cable or the scaqn tool was configured wrong and therfore could not connect to the ecm. I would recommend having a scan done again by a certiefied volkswagon tech chances are the mechanics used the wrong adapter cable or reader card. your smog problem could be that your evap canister is clogged therfore gives a bad reading.unfortunately you have to have a scan done but try an independant small shop that delas exclusively with foreign cars such as porche andd mercedez. the will have the correct scan tool and will be much cheaper than a dealership. your cost should be no more than 50 dollars US ... please rate this. thanks

THAT LEAK IS UN-METERED AIR ENTERING THE ENGINE, FIX IT AND RETEST SYSTEM. P103 IS A MAF CODE. A MAF MEASURES THE AIR ENTERING THE ENGINE, AND BASED THAT AND ON OTHER DATA THE PCM DECIDES THE AMOUNT OF FUEL TO INJECT.