Get the connections checked.
I had # 3 and # 5 connections loose and a hell of misfires which were gradually getting worse.
Resulted that when I was putting everything back together after replacing timing chain guides ,one of the plastic connectors cracked a bit and the clamp wasn't well set into the groove.It took it 1500 kms or so of engine vibrations to get detached and start making me some troubles.
I was getting the same #3 open circuit and multiple misfires codes.Although it was on my M62 v8.But that doesn't really matter,I am pretty sure the system is the same.
Quote:
Originally Posted by PeterF
Last night I was at a stop and my 2006 x5 3.0 just started vibrating/pulsating. About 30 seconds later the "service engine soon" light came on. I drove the short distance home and the engine continued to vibrate and did not have much power. I checked the fault codes with my bmw scanner 1.4 and here is what it says:
16/F4 - Fuel injector, cylinder 3, open circuit
F0/B3 - Misfire, cylinder 3, misfiring with cylinder cutout (Misfire CARB_A), misfiring during warm up, worsening emissions (Misfire CARB_B1)
I pulled it apart today thinking it was an electrical issue. Each fuel injector connector shows 12v. The other wire which is a ground triggered by the computer, was not grounded of course as the car was not running when I tested it.
I also tested each injectors resistance and each showed 12.3 ohms.
Basically I can't find anything wrong with the fuel injector wiring. I know I need to change the spark plugs but that has nothing to do with the fuel injectors. Has anyone experienced this issue before??
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