Sudden power surge

Post by **jacob360** » Wed Oct 15, 2003 5:53 pm

I have a 91 240sx with the KA24DE. It has 150,000 miles. It runs well, and at WOT pulls ok, but at 5500 it gets a very sudden burst of power and pulls hard all the way to redline. I was thinking it might be normal operation of the intake manifold butterflies, but I don't know much about how that system works. Is this normal operation, or is my engine supposed to pull this strong all the time? It isn't a gradual increase in power, it's very abrupt.

Thanks for any insight.

Post by **MrFox** » Wed Oct 15, 2003 5:53 pm

Damn I forgot all about that, should've showed you how the engine in mine ran when we drove.The intake butterflies operate at around 2000-2500 RPM IIRC, and their effect is not as noticable as that abrupt surge 5500RPM I felt from your car.Definitely not normal operation!

Post by **jacob360** » Wed Oct 15, 2003 5:53 pm

Anyone got any ideas?

Sudden power surge

Sudden power surge

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