Thank you @skegbudley. I’ll give the Maf a clean and check for vac leak, I know last time I cleaned the Maf the plastic plug wasn’t clicking in properly.Nothing to worry about with the 0405 code. I get it on a daily basis due to my Tillix valve setup and the extra fuel from the remap. I've consulted with other tuners and we all agree it is nothing to worry about. That and none of us have been able to find the map that triggers it yet. I'll be back to working on my remap later this year once things go back to normal so hopefully I'll get lucky and find it.
The 0102 code can be caused by multiple things. Faulty connection to MAF sensor. Dirty MAF, leaking intake manifold gasket, faulty MAF and vacuum leak are all possible causes.
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I might have to cable tie it on.
I had my ecu remapped by Harley at Ecpt about 3 years ago but never had the 0405 code until recently. I’m glad you think it’s nothing to worry about though.