LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

how did no maf on 93s work?

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Old 10-13-2003, 01:14 PM
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how did no maf on 93s work?

how did they work? how did it know the amount of air coming in the engine???

i'm just curious

i heard they use speed density or somethng, and what the hell is that?
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Old 10-13-2003, 01:20 PM
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Re: how did no maf on 93s work?

Originally posted by Seal
how did they work? how did it know the amount of air coming in the engine???

i'm just curious

i heard they use speed density or somethng, and what the hell is that?
Speed density fuel injection systems calculate engine airflow to estimate the fuel requirement. The PCM uses inputs from the MAP, TPS and IAT sensors. MAP = manifold absolute pressure (sensor), TPS = throttle position sensor, and IAT = intake air temp (sensor) to calculate the amount of air going into the motr and hence the amount of fuel needed.

Rich Krause
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Old 10-13-2003, 01:32 PM
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ahh... looks like alot of work!
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Old 10-13-2003, 07:15 PM
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Less junk to get screwed up I.E. MAF, not as problematic if there's an intake elbow leak.
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Old 10-13-2003, 08:31 PM
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I've heard that they respond better to mods than ones with a MAF. Anyone know if it's true?
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Old 10-13-2003, 09:04 PM
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Supposedly that's the truth. It could just be that there's no MAF restricting the intake tract though. Could be a lot of things.
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