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B18B1 swap hatch, idle & acceleration problems.

Old 09-17-2011, 08:43 AM
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Default B18B1 swap hatch, idle & acceleration problems.

Just got done swapping a known good B18B1 into my 1995 CX hatchback, but now I'm having some problems. Cold idle fluctuates around 1500-1700 and when it's warm it idles right about 1400. I have adjusted the throttle cable and idle adjustment screw is all the way in. I've cleaned my FITV and my IACV, I even replaced the IACV with a known working one when cleaning it didn't resolve the issue. Also, when the car is at operating tempurature I can't go WOT or else it bogs out a bit til around 4,000 rpms and when I'm driving normally it's just choppy. I'm running a chipped P05 w/ an LS basemap, the shop has even burned multiple different ones (setting the idle lower) in order to try and fix the issue, but nothing is working. My coolant is full and bled, I have no vacuum leaks, no CEL, I have replaced the injectors with known good ones and I know my distributor is good.
Old 09-17-2011, 10:14 AM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Just tried replacing the throttle body, didn't see any change. Also, when I cover the IACV hole on the throttle body the idle drops to a steady 1,000ish
Old 12-30-2011, 09:20 AM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

every figure out the problem?
Old 01-28-2012, 07:45 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Yeah what the problem my b18b1 idles the same way and I've cleaned the iacv tightened the FITV idle screw all the way in and no vaccumed leaks. What is it!?
Old 01-28-2012, 07:53 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Are you guys adjusting the idle screw the correct way?
Old 01-28-2012, 08:01 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Yes tightening it all the way in
Old 01-28-2012, 08:04 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

That's not what I'm saying there's a procedure you have to follow to make the idle screw actually adjust idle. Look it up
Old 01-28-2012, 08:13 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Can you post a link?
Old 01-28-2012, 08:14 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Did you even search?
Old 01-28-2012, 08:16 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Yeah lol I can't find it
Old 01-28-2012, 08:22 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

:facepalm: strait from the FAQs

http://i267.photobucket.com/albums/i...cture_3365.jpg
Old 01-28-2012, 08:30 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Thanks man I'm gonna try that tmrw I'll update my post
Old 01-28-2012, 08:32 PM
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Default Re: B18B1 swap hatch, idle & acceleration problems.

Let us know if it works
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