Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

do you need to unhook the IACV when setting tps? (b18c)

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Old Jul 20, 2005 | 01:01 PM
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Default do you need to unhook the IACV when setting tps? (b18c)

yes or no is all i ask?

searched but couldn't find anything on the IACV
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Old Jul 20, 2005 | 01:03 PM
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Default Re: do you need to unhook the IACV when setting tps? (j0nptw)

Dont quit get what you mean but no.
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Old Jul 20, 2005 | 01:06 PM
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Default Re: do you need to unhook the IACV when setting tps? (Luserkid)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid &raquo;</TD></TR><TR><TD CLASS="quote">Dont quit get what you mean but no. </TD></TR></TABLE>

i thought i heard you need to let your engine get up to normal operating temp and then unhook the IACV and set the TPS w/o the IACV plugged in?
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Old Jul 20, 2005 | 01:08 PM
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Default Re: do you need to unhook the IACV when setting tps? (j0nptw)

my idle was going crazy and so i was just gonna re-adjust the tps and when i unhooked the IACV the idle is fine, just a little low even...
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Old Jul 20, 2005 | 01:54 PM
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Default Re: do you need to unhook the IACV when setting tps? (j0nptw)

anyone else ever heard about this? or something?
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Old Jul 20, 2005 | 03:25 PM
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Default Re: do you need to unhook the IACV when setting tps? (j0nptw)

To adjust the idle u allow the car to warm up to normal operating temp an than adjust it U do not disconnect the IACV. If ur not sure how to adjust the Idle if u have a stock honda throtle body there is a screw in it u just turn the screw ideal idle should be 750 to 850rpm
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Old Jul 20, 2005 | 03:52 PM
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Default Re: do you need to unhook the IACV when setting tps? (AZ_Nocturnic)

yeah i got the idle fixed, it's just the whinning noise from the tranny now, it doesn't do it when the clutch is pushed in or it's in neutral, and it only seems to do it when your decelerating a little bit or accelerating a little bit. i don't think it's the intake mani tho. i just put a stage 1 clutch and lightened flywheel on before i dropped the motor in too.
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Old Jul 20, 2005 | 03:52 PM
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Default Re: do you need to unhook the IACV when setting tps? (AZ_Nocturnic)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AZ_Nocturnic &raquo;</TD></TR><TR><TD CLASS="quote">To adjust the idle u allow the car to warm up to normal operating temp an than adjust it U do not disconnect the IACV. If ur not sure how to adjust the Idle if u have a stock honda throtle body there is a screw in it u just turn the screw ideal idle should be 750 to 850rpm</TD></TR></TABLE>

You sure about the bolded part?
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Old Jul 20, 2005 | 04:01 PM
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Default Re: do you need to unhook the IACV when setting tps? (j0nptw)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by j0nptw &raquo;</TD></TR><TR><TD CLASS="quote">yeah i got the idle fixed, it's just the whinning noise from the tranny now, it doesn't do it when the clutch is pushed in or it's in neutral, and it only seems to do it when your decelerating a little bit or accelerating a little bit. i don't think it's the intake mani tho. i just put a stage 1 clutch and lightened flywheel on before i dropped the motor in too.</TD></TR></TABLE>

most likely its the bearing in the tranny
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Old Jul 20, 2005 | 04:04 PM
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Default Re: do you need to unhook the IACV when setting tps? (komat)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by komat &raquo;</TD></TR><TR><TD CLASS="quote">

most likely its the bearing in the tranny</TD></TR></TABLE>

It's probably the input shaft bearing. I have the same problem and will be replacing the bearing sometime next week.
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Old Jul 20, 2005 | 05:24 PM
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Default Re: do you need to unhook the IACV when setting tps? (my head a plode)

is it a very serious problem? i will be replacing it yes, but i'm just wondering if i could go a couple weeks w/o replacing it or messing with it?
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Old Jul 21, 2005 | 12:53 PM
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Default Re: do you need to unhook the IACV when setting tps? (EE_Chris)

I remembered how to do it wrong I got this straight from ALL Data

Idle Speed Adjustments

Allow engine to warm up
disconnect the 2p connector from the idle air control valve
start the engine with the accelerator pedal slightly depressed. stabilize the rpm at 1k then slowly release the pedal untill the engine idles

Idle Speed at this time should be 420 + or - 50rpm
Adjust the idle speed if necessary by turning the idle adjusting screw

After adjusting the idle speed in this step, recheck the ignition timing, refer to ignition system/ adjustments if it is out of spec adjust than repeat the entire process over again.

turn the ignition switch off
reconnect the 2p connector on the IAC vale then remove the back up (7.5 A) fuse in the under-hood fuse/relay box for 10 seconds to reset the Engine Control Module

Restart and Idle the engine with No-Load conditions for one minute than check the idle speed
at this time idle speed should be between 700 an 800rpm
Idle engine for one min. with headlights on an idle should remain at 7 to 800rpm turn the headlights off idle the engine for one minute with heater fan switch at hi and air conditioner on than
check idle speed idle should now be between 800 and 850


Modified by AZ_Nocturnic at 2:12 PM 7/21/2005


Modified by AZ_Nocturnic at 2:14 PM 7/21/2005
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Old Jul 21, 2005 | 03:08 PM
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Default

When setting the TPS you do so with the engine not running but the key switched to run.

When setting idle (this even shocked me, I've never done it )
From the Helm Manuals
DC2 - disconnect IAC and EVAP purge valve
EK - disconnect the IAC and EVAP purge valve
EG - disconnect the EACV (same as IAC)
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