O2 Sensor Cleaning For Fuel Economy?
05-05-2019, 09:13 AM
#76
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Once again, thank you Cruiser! As I mentioned before, I'm hesitant to pinch that return line as it appears to be hard plastic. Also, I did replace that fuel pressure regulator last weekend, and the pressure drops to zero nearly immediately after shutting off engine.
I'm going to put the gauge back on it today and at least double check my observations and see if I can perform that leak down test without damaging the fuel line.
I'm going to put the gauge back on it today and at least double check my observations and see if I can perform that leak down test without damaging the fuel line.
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