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Re: hose that runs from the intake air filter duct to the...
The hose is for heated air to the intake, 3 things could happen, in winter the intake throttle valve could freeze up, 2nd you can fail your visiual smog test, and 3 poor fuel economy. This hose goes to the exhaust mainfold sheet metal heat stove, it is cheap to buy, replact it.
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On the 2.2 zafira, z22se engine. There is no MAF sensor. Which is why you can not find it. Instead it uses a combination of the IAT (Intake Air Temp) and the MAP (Manifold Air Pressure) sensors.The IAT is the small plastic sensor on the side of the intake duct.The MAP sensor is just after the throttle body. You need to take the whole throttle body off to get at it.
email me. Check and make sure all vaccum hoses are not cracked. Basically anything connected to you throttle body, or intake that is made of rubber replace it. there is a small crack. happened to me this week. small air leak makes a difference. also if you can replace the intake with a cold air intake. Runs way better.
It is the part where the air duct coming from the air filter housing connects to, right between the air duct and the flex hose that connects it to the intake manifold.
THIS IS A MAF SENSOR ADAPTER. THE SENSOR WOULD BE MOUNTED ON THE RECTANGULAR BASE AND FASTENED WITH THE TWO SCREWS
THIS IS THE IAC SENSOR, MOUNTED ON THE INTAKE MANIFOLD, BY THE MAF SENSOR.
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relief fuel pressure.remove air intake duct .the dohc engine remove the fresh air hose inlet hose from cam shaft cover.disconnect large under hood fuel line.near intake manifold support bracket on the left side of vehicle. look under vechicle where gas tank is there is a fuel filter with disconnects.
Sounds like intake air system, look for cracks in hoses (possible intake manifold gasket) all vacuum hoses and connections. Make sure TPS and all filters are clean. Sounds like a lean mixture/flooding issue. Common problems with FWD is the Air Intake Hose, lots of flexing. Cracks form on the bottom and debris comes off inside over time(thus fouling the TPS downstream). Remove inspect carefully, If it is hooped you can fab one up yourself with PVC and some clamps and Aluminium Dryer Ducting. With the proper alignment and bigger airways you will boost your performance. The TPS can be cleaned with Carb Cleaner, replace the air filter and then test with a Vacuum Pressure Gauge install in line, directly off a Intake Manifold Vacuum port.