C32 engine swap

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Mar 20, 2009 | 02:26 PM

#21 (permalink)

AllEuro

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Re: C32 engine swap

Quote:

Originally Posted by rcompart

The MAF along with lots of other systems determines where in the fuel table it needs to be on the NA. It has a MAP sensor and that is part of what measures engine load as it is on the vacuum lines in the front of the engine jsut to the right of the thermostat housing when looking at it from the front.

The SRT does not have a MAF sensor as it uses the MAP exclusivly.

As for the no-no, i'm don't remember what the exact names of the codes are but there are a few and it's along the lines of bad map sensor/incorrect reading for the given parameters or some other tehcnical statement used to encompass that type of error.

As far as boost, if you have the map between the throttle body and whatever you're using for FI, it will always read vacuum.

Hope this clears some stuff up.

So the NA actually does have both? This definitely makes things a bit more complicated. A brief search online, indicated that the MAF and MAP systems do different things in a dual system. The MAF still measures air flow, but the job of the MAP sensor is different depending on where I look. I have seen in written that a dual system has the MAP overseeing the EGR and another as simply a measure of barometric pressure designed to fine tune the motor during elevation changes or changes in weather. So I wonder how these two are connected in the crossfire? It would seem odd that the ECU would be receiving info from two different sources of air volume at the same. I guess being a mercedes, the foolish redundancy and overcomplication of things should be expected!