Thanks for the answer.Verrückt wrote:NO.Dippy wrote:The guide does say 'if requested' about the chip which implies that it's not mandatory. Since the guide also mentions fine tuning of 'drivability' issues, maybe that's what the new chip is for. So perhaps the Hitachi MAF can be used in place of the Bosch one without without a software upgrade, and reliability will be improved.
The voltage transfer functions for the two sensors is completely different. You absolutely need different software. For US spec, it's A box to M box conversion.
For Euro folks, please note that I have a 8D0 907 551 G ECU with my Hitach MAF.