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i think im idleing too high...?

  #1  
Old 12-01-2011, 04:30 PM
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Question i think im idleing too high...?

i have a b16a and i just finished changing the gasket for the exhaust manifold, i have a header, but it is like 4-5*c outside but i started it after not being started and it idled at like 1600 then after a rev it dropped to 1500, then dropped to 1250-1000 after it warmed up, is that normal for a vtec motor when its cold?
 
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Old 12-01-2011, 05:02 PM
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It's normal. My '95 EX, '99 EX and friends '91 Si all initially idle around 15-1600rpm at start but then drop slowly as the car warms up. Normal operating temp idle is anywhere from 500-900rpm for them and as it should be for these cars.

If you car continues to idle 1000rpm or above while at operating temp you may either need a mild tune up or simply need to adjust your idle screw.

Also make sure there are no loads on the motor such as A/C, headlights, etc..
 

Last edited by civicexracer; 12-01-2011 at 05:05 PM.
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Old 12-01-2011, 05:47 PM
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ok thanks man, appreciate it, how long do you let your car warm up for? with a vtec
 
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Old 12-01-2011, 08:23 PM
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It doesn't matter that they have v-tec. If it's freezing or below, I usually wait at least a couple of minutes before going anywhere. If it's reeeally cold I'll take my time and let it warm up for a few minutes. If I'm in a hurry, I'll get going but I'll coast in neutral as much as possible and wont rev up too high until it starts warming up.
 
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Old 12-01-2011, 09:23 PM
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oh ok thanks for clearin it up, so like a good 5 min i take it?
 
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Old 12-01-2011, 10:23 PM
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Yeah.. 5 Min should be good..
Just look at your temp gage lmao. You'll see it start to move up
 
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Old 12-02-2011, 10:16 AM
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mine wont move till i move haha
 
  #8  
Old 12-11-2011, 09:30 PM
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Should be at 650 rpms when warm and anywhere from 1600 and down as it goes through its warm up
 
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Old 12-11-2011, 10:08 PM
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yeah im usually at 800-900 but my tach is off cus i have a b16a swap , but it sounds fine when it idles now
 
  #10  
Old 12-12-2011, 06:07 AM
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Why would your tach be off due to a swap? lol.
 

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