Engine fault after changing valve cover and upper timing gaskets

  • 2004 BMW 745
  • 89,000 MILES

I just changed my valve cover and top timing cover gaskets on my 2004 745i. I started the car up and it ran very smooth so I took it for a test drive around the corner and it started to run very rough and the engine fault light came on. I put everything back exactly how it came off.I bought the Peake code reader and it gave me these errors.
table 22
273d=catalytic converter conversion (bank 2)
27bb=camshaft control outlet -vanos0
27bc=camshaft control outlet-vanos bank2
274e=misfire detection, checksum failure
2731=camshaft control inlet
2732=nw-intaken control bank2
2744=misfire detection cyl 4
2742=misfire dtection cyl 1
2749=misfre detection cyl 2
2747=misfire detection cyl 3

I worked on the drivers side of the engine so not really sure why the misfires are happening on the passenger side. Any idea what could be causing these problems?

Do you
have the same problem?
Thursday, February 2nd, 2012 AT 11:20 PM

1 Reply


Check the wiring to the O2 sensors. Check the plug wiring, make sure they're properly seated. Check the connector to the camshaft sensor and make sure it hasn't been knocked loose.

Was this
Friday, February 3rd, 2012 AT 3:07 AM

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