Quote:
Originally Posted by e39_touring
Which car is this on? At least on the 3.0, pre lci and lci sap systems are different. Early has a vacuum controlled valve while the later ones eliminate this and just use the air pumps pressure to work against the spring and force the valve open. If you can blow through it, it's fine. There's also a mini maf that goes bad and can throw the generic obd code. Inpa or equivalent will tell you.
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This was on the 2002 4.6is. The valve has a large inlet and outlet hole and a small vacuum line which attaches to a black tube with a blue stripe that goes under the engine cover.
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2002 4.6is
Last edited by rwm514; 03-19-2019 at 08:01 PM.
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