I have a 2002 Jeep grand cherokee the check engine light came on and my diagnostic machine reads P0174 system to lean. what should I do and what could be wrong
P0174 Fuel trim lean Bank 2
Vacuum leak are the number one cause for lean code conditions, disconnected or even ruptture vacuum hoses set off the lean bank code condition. To find a vacuum leak it take a visual inspection and at the most probable area to search Here is a PCV valve that tends to break in doing so it can and does set lean code conditions. As for lean code condition the most probable is always vacuum leaks.
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