Quote:
Originally Posted by Roman
Probably uses MAP as secondary feature, ie. to give it fuel cut at 12psi or something.
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No fuel cut based on PSI/BAR afaik.
I believe it uses it to further 'fine' tune the fuel map based on psi/bar, beyond what it's already getting from readings @ the MAF. Probably helps if your end up with a boost leak as well. It may also do some correction when you lift off the pedal suddenly.
My friends s14sr is the only one I've actually seen with it (locally). And his sr20 runs way stronger than many of the others I've been in. It takes other guys lots of mods to keep up with him. He only has a downpipe, intercooler and 3" exh, and running on 7psi. Most people who swap them here don't get the boost pressure sensor as nissan put them inside the engine bay fuse box of all places, or they just don't realize it's in there if they were fortunate enough to get it with their swap. And most people are running 10psi boost on their motors, nissan put a special restrictor in one of the vacuum lines for the wastegate that limits boost to 7psi. Most people replace all the vacuum lines and don't realize that it's in there. And without it there is a sudden jump to 10psi.
Andrew