01-02-2014, 04:28 PM
In my opinion MAF is important, the ECU makes small timing corrections based on air mass and temperature, you'll probably notice that MPG is better with a (fully working) MAF.
Sometimes It can be a hassle for example when broken or when flowing above the readable range when you've got a big turbo.
However, MAF based smoke limiter will always be a lot more precise than MAP based smoke limiter, I think they only really got popular because of the VAG boys who like to fit tje 3 Bar sensor and then use MAP limiting.
The 2.2 HDI has a much bigger MAF, I'm going to try and calibrate this into a 306 with a K03s, hopefully this should then allow for precise control of AFR after 4K RPM where the stock MAF just can't cope. Likewise on my 1.6 HDI, the MAF can't read high enough for even 150 BHP worth of air, this kind of sucks because I either give a lambda ratio of less than 1, or I have to calibrate in a new sensor to keep it smoke free. It all depends on what you're trying to acheive I suppose, on a stage 3 then yes it's a good plan to remove complexity, on a stage 1 it's best to fix the fault rather than masking it surely?
Sometimes It can be a hassle for example when broken or when flowing above the readable range when you've got a big turbo.
However, MAF based smoke limiter will always be a lot more precise than MAP based smoke limiter, I think they only really got popular because of the VAG boys who like to fit tje 3 Bar sensor and then use MAP limiting.
The 2.2 HDI has a much bigger MAF, I'm going to try and calibrate this into a 306 with a K03s, hopefully this should then allow for precise control of AFR after 4K RPM where the stock MAF just can't cope. Likewise on my 1.6 HDI, the MAF can't read high enough for even 150 BHP worth of air, this kind of sucks because I either give a lambda ratio of less than 1, or I have to calibrate in a new sensor to keep it smoke free. It all depends on what you're trying to acheive I suppose, on a stage 3 then yes it's a good plan to remove complexity, on a stage 1 it's best to fix the fault rather than masking it surely?