98 volvo s70 stalling out, then finally after a day wouldnt start
If the air pump system is setting a fault, then the check valve is probably bad. If it is not addressed, eventually exhaust gases can run back through the air hose to the air filter housing and destroy the MAF sensor, causing these types of problems.
The fuel pump also fails and is a more likely cause of the stalling, and it wont set a code.
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