hi
i have 2001 BMW 740il it has code po171 ,174 system too line i chenge entek gasket spark plag valve cover gasket pcv oxeygen sensor but again i have same problem what.s my problem ?
The knock sensor on a BMW 740Il is located on the top of the engine. It is mounted under the intake manifold.
The oxygen sensor bank 1 is located in the exhaust manifold. The oxygen sensor bank 2 on the 1996 BMW 328is is located in the head pipe.
There are four under the intake manifold
intake air temp sensor is located on the air filter box lid.
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Theres four o2 sensors in this particular bmw. Two before and two after the cat converters.
The front oxygen sensor is located on the exhaust manifold of the BMW 318ti. The rear oxygen sensor is located in the head pipe.
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