[roverohio]

In my never ending timing chain guide project, I finally reassembled and started her up. Idled great. Got the coolant bleed and looked like we were good to go...until I got a P0021 and a misfire code #7.

It idles well and smooth, but try and drive it and I got the codes. Looks like timing could still be off a tick on the driver side? I was thinking about redoing top end timing on that side only.

 

[RRSC2012]

What engine? What year? I don't think it is timing issue anyway...

 

[rover lover]

Profile would indicate an M62 BMW.

What engine? What year? I don't think it is timing issue anyway...

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[roverohio]

Sorry guys. I did not realize that I had not posted my engine. 2004 Range Rover M62 engine. 131,xxx mi

Short background- Have been working on timing chain guides for quite a while. I've readjusted the top end timing once already. The car starts and idles smooth. I have narrowed the issue to the RR showing a pending code on heavier acceleration. I was having a misfire issue but after moving coils around it seems to have mysteriously disappeared. I am left with figuring out this P0021 code on acceleration. I have read it relates to Vanos timing? If so am I left to do a top end timing again on the driver side?

 

[roverohio]

Just confirmed again. The P0021 code shows as pending upon a harder acceleration. Light acceleration, normal driving and idle to not trigger the code. No more issues with misfires.