Originally Posted by Blacky
Anyone having fuel issues, please check the value of {B3601} "Air Fuel Ratio for Stoich". It should be 14.63
Some old *.cal files had an incorrect max limit of 1.0 which forced it to down to 1.0
If that has happened the PCM will attempt to command 1:1 AFR (way too rich) when it should be shooting for 14.63.
If that valus has changed, please change it back.
Unrelated, the {B0106} "Crank:Run Blend Ratio" may also get incorrectly altered to 1. It's stock value is 8.
Both of these two limits have been corrected in the latest *.cal files. But the *.tun file you are using may have been altered previously using a faulty version of the *.cal files.
Regards
Paul