84B23F
Well-known member
- Joined
- Feb 11, 2008
- Location
- Kansas, USA
I'd replace plugs...off-hand, it appears they have soaked up some oil, via intake valves or rings, or maybe fuel. Plugs firing via wasted spark should appear cleaner. Soaked plugs loose their full potential.
If fuel rail pressure drops, when key is switched off, this test is valid for detecting a leakie injector only if FPR and Fuel Pump Check Valve (Bosch 1587010539) are holding.
If fuel rail pressure drops, when key is switched off, this test is valid for detecting a leakie injector only if FPR and Fuel Pump Check Valve (Bosch 1587010539) are holding.