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SVTPerformance's Chain of Restaurants
Tuning À la carte
97 Cobra Vortech supercharger with 12 psi load issue
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<blockquote data-quote="Denver_SVT" data-source="post: 16042209" data-attributes="member: 72321"><p>From what I understand of your write up that Mass air flow sensor is used to determine how much air going to the engine so the ECU knows to tell the injectors how many fuel to inject to get a good air fuel ratio.</p><p></p><p>So, the current will pass through the hot-wires element and we want to keep this element in a constant temp and by doing this we will know how much air flow going to the engine.</p><p></p><p>let's say we step on the gas and we got more air going to the engine with more air is going to pass through the element and air flow inside and the temp in the element will get cooled.</p><p></p><p>As I know temp and resistance are related for this element so as temp drops the resistance will also drops.</p><p></p><p>Ohm's Low said that the Current is equal to the voltage divided by resistance so if we lower the resistance of this element, we will know the number will be bigger and that will bring the current up and the larger current will heat up the element and it will bring the temp where it was.</p><p></p><p>Now what ECU does will translate this current into voltage change and with that voltage change it knows there is difference in air flow.</p><p></p><p>So, in conclusion that what affects my voltage is the air flow and by that I will know that I might have restricted air flow not going right to the engine either by clogged Air filter of dirty MAF. correct?</p></blockquote><p></p>
[QUOTE="Denver_SVT, post: 16042209, member: 72321"] From what I understand of your write up that Mass air flow sensor is used to determine how much air going to the engine so the ECU knows to tell the injectors how many fuel to inject to get a good air fuel ratio. So, the current will pass through the hot-wires element and we want to keep this element in a constant temp and by doing this we will know how much air flow going to the engine. let's say we step on the gas and we got more air going to the engine with more air is going to pass through the element and air flow inside and the temp in the element will get cooled. As I know temp and resistance are related for this element so as temp drops the resistance will also drops. Ohm's Low said that the Current is equal to the voltage divided by resistance so if we lower the resistance of this element, we will know the number will be bigger and that will bring the current up and the larger current will heat up the element and it will bring the temp where it was. Now what ECU does will translate this current into voltage change and with that voltage change it knows there is difference in air flow. So, in conclusion that what affects my voltage is the air flow and by that I will know that I might have restricted air flow not going right to the engine either by clogged Air filter of dirty MAF. correct? [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
97 Cobra Vortech supercharger with 12 psi load issue
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