SamV8 Posted November 24, 2020 Report Share Posted November 24, 2020 Hi This is pretty new to me, but I could use some help. I have a supercharged 347ci Ford V8, running a LEM G3. I have recently updated the firmware to so it runs G4, but now it misses and stumbles when cold. this can be so bad that it will stall unless I put it in neutral and let it recover. The tables are all the same, from G3 to G4, but the issue started after the update. Can anyone give me any suggestions here? Thanks in advance. Mustang 8Sep2020.pcl Mustang G4_Edit.pcl Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 25, 2020 Report Share Posted November 25, 2020 I dont see any obvious differences in your two maps. I have done a couple of G3 to G4 updates in my time and generally fueling stays the same if it was a conventional speed density set-up like yours. So you'll really need to get a wideband on it to see if it is a fuel related problem of something else. At least you have good logging capability now to help... Quote Link to comment Share on other sites More sharing options...
SamV8 Posted November 25, 2020 Author Report Share Posted November 25, 2020 Thanks for the reply Adamw. I was thinking the same thing, but it is good to have someone else look through and just confirm I have not missed something obvious. The new software is great, and I will order the wideband as possible. Quote Link to comment Share on other sites More sharing options...
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