MAP sensor reading erratic and maybe a little high?

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classic-indy
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Joined: Sun Jan 02, 2011 2:49 pm

MAP sensor reading erratic and maybe a little high?

Post by classic-indy »

I have just installed my MAP sensor barb in the throttle body. I have been reading up on the installation and I believe that I've put it in a reasonable spot. My engine is a 2 stroke case reed twin that idles @ 1600-1800 rpm, and I get MAP readings from 85kpa to 93~95kpa. Which I believe to be causing my idle to jump around. Attached is a screen shot of my MAP sensor location.
Attachments
Map sensor hookup.jpg
This is looking into the throttle body, you see the butterfly valve, injector, and just to the right a brass 1/4" fitting for the MAP sensor.
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dontz125
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Re: MAP sensor reading erratic and maybe a little high?

Post by dontz125 »

Strokers are famous for rough idle, with weird pulses at the intake. Have you tried adjusting the MAP sampling window?
classic-indy
Helpful Squirter
Posts: 60
Joined: Sun Jan 02, 2011 2:49 pm

Re: MAP sensor reading erratic and maybe a little high?

Post by classic-indy »

No I have not, if that does not give me desirable readings is there anything else I could try? I read somewhere about decreasing the diameter of the Map sensor tubing i.e. a choke point to smooth out the air pressure. Would that be something worth trying?
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