Rpm drop in neutral
Have changed fuel pump cleaned IACV have to codes for 02 sensor but been on prior to this happening, rpm drop close to 0 sometimes zero when moving and put in neutral, what do I need to look at next scanner says fuel system 0L fault
I had a similar situation due to a faulty fuel tank ventilation valve. It caused negative pressure in the fuel tank, leading to RPM dropping to zero. Also, check the throttle body, it might be time for a clean. And make sure the air intake hose hasn't cracked.
It was my ac compressor seizing up so I got a belt for same model with no ac and bypassed it completely no rpm drop now
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