Advice wanted from the tuning guru's

[fasterfaster]

It sounds almost like your IAP settings are lean and it's hunting in light throttle condition. Without any A/F readings you could chase you tail forever.
Contact Maj and if he has time would sort it for you no risk.

Many of the tuners either don't want to learn flashing or are to busy making money out of selling pc's and other aftermarket devices that arn't half as good .....sadly

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