11.0 afr @ cruise
03-07-2018 | 01:58 AM
#1
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11.0 afr @ cruise Hi,I have a 6.0 L77 M6 which has suddenly statred running very rich no matter what tune I flash into it. E38 pcm. I replaced the O2 sensors today thinking they were contaminated but it actually fouled a plug when I went to drive off. It does have a cam in it but the afr's just seem to be getting worse as it is washing the bores & starting to use oil when it warms up. Any ideas? I am using EFI LIVE.
And...
03-08-2018 | 02:40 AM
#4
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Hey, when I did a read it showed that my tune was staying in open loop. I had no feedback from the O2 sensors because I had loaded a calibration to the pcm to do swingtans vve dial in.I must have saved over the original file after one too many beers I guess.Flashed a tune after checking that closed loop hadn't been disabled & I got my 14.6 at cruise back.Time for an oil change & filter inspection I think.