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Weird idle

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jmartinez1228

20+ Year Contributor
359
2
Feb 20, 2004
Rocky HIll, Connecticut
Heres the deal, my 1g drives fine on dry days but when it rains the car seems to idle weird the rpms go down and then up. She doesnt stall ever but just fluctuates in rpms. I cant seem to find a loose vacuum line anybody have any ideas of what i should look at?
 
Turbo cars have a barometric pressure meter that hooks up the the computer or MAF somehow, helps it to moniter boost or knock or something. I don't know where it is though. I figured since the air pressure is lower when it's raining, it might have something to do with it.
 
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