# burnyd's car

**URL:** <https://forums.speedlife.net/t/burnyds-car/184388>\
**Category:** PittSpeed Off Topic\
**Created:** [August 20, 2006, 1:29pm UTC](https://forums.speedlife.net/t/burnyds-car/184388 "2006-08-20T13:29:59Z")\
**Posts on this page:** 1\
**Showing post:** 49

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**Author:** ![STAGE](https://avatars.discourse-cdn.com/v4/letter/s/b77776/32.png) [@STAGE](https://forums.speedlife.net/u/STAGE)\
**Post date:** [August 21, 2006, 7:22am UTC](https://forums.speedlife.net/t/burnyds-car/184388/49 "2006-08-21T07:22:28Z")

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> [@The 240sx Hatch Timeline](https://forums.speedlife.net/t/the-240sx-hatch-timeline/23820/23):
>
> on a side note to clear up something kolar mentioned in this thread earlier, it’s not a “psi” that the ecu reads but a calculation of the amount of air…remember that psi is relative it’s the volume of air the ecu determains as too much and cuts fuel/spark
> 
> for example a t25@10lbs won’t cause a factory dsm to fuel cut but a 50 trim@10psi would. _most_ factory turbo cars use maf’s pre turbo rather than a map sensor post turbo…they have no idea what kind of pressure the engine is seeing they can only calculate how much air is passing through the maf.
> 
> hope that helps

Good point. Only time will tell what actually caused the failure

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