05-30-2004
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#1
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Guest
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Okay heres the story. My car had mad idleing problems, when I would drive and put the clutch in the idle would drop below 750rpms and almost die out. Okay so a bunch of people told me to change the ISC (Idle Speed Control). I did and it idle well but it goes up to 2000rpms when the cars gets warmed up. But when it does idle at 900rpms, it sounds like Im running on 3 cylinders. Pls help. :headache: :headache: :headache:
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05-30-2004
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#2
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Shit Rocket Pilot
Join Date: Oct 2003
Location: Shoreview, MN
Drives: 2003 Evolution VIII
Posts: 7,752
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What do you have for a blowoff valve, and is it vented?
__________________
"If everything seems under control, you're just not going fast enough." -Mario Andretti
03 Mitsubishi Lancer Evolution VIII
Quote:
Originally Posted by Tachyon
Every minute you spend in your Evo, not in boost, is a minute of your life you'll never get back.
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05-30-2004
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#3
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Guest
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stock BOV...
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05-30-2004
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#4
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Shit Rocket Pilot
Join Date: Oct 2003
Location: Shoreview, MN
Drives: 2003 Evolution VIII
Posts: 7,752
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Quote:
Originally posted by H.A.R.T 4G63DSM@May 30 2004, 01:44 AM
stock BOV...
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Does it still blow back into the intake before the turbo or is it vented to the atmosphere?
__________________
"If everything seems under control, you're just not going fast enough." -Mario Andretti
03 Mitsubishi Lancer Evolution VIII
Quote:
Originally Posted by Tachyon
Every minute you spend in your Evo, not in boost, is a minute of your life you'll never get back.
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05-30-2004
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#5
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Hellbound
Join Date: Nov 2003
Location: St Paul
Posts: 1,390
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Vented BOV, other intake leaks, BISS screw misadjusted, missing BISS o-ring, alot of things can cause idle problems.If you are local, I'd recommend having an experienced DSM'er check it out, and your turbo problem as well.
__________________
-Nulli Secundus-
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05-30-2004
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#6
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15min late to the world
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Yes get it check out by someone who knows what there looking at. Saves time and money.
~John
__________________
Moon taxi: 9.45@156.9 mph 41psi 2011... Letting people down sense 2012.
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05-30-2004
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#7
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Join Date: Dec 2003
Location: Eagan
Drives: 06 RSX
Posts: 503
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Make sure the spark is good too. Cap, rotor, plugs, and wires should be checked. I had big problems for a long time because one of my wires never connected 100% to one of the plugs, so i ran 3 cylinders.
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05-30-2004
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#8
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ConArtist
Join Date: Oct 2003
Posts: 1,960
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Quote:
Originally posted by Kougar@May 30 2004, 12:08 PM
Make sure the spark is good too. Cap, rotor, plugs, and wires should be checked. I had big problems for a long time because one of my wires never connected 100% to one of the plugs, so i ran 3 cylinders.
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The clutch technician wants you to check the cap and rotor on your car with no distributor. Go figure.
__________________
Quick Precision Racing, Inc.
"Always Raising the Bar!"
651-488-7774
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05-30-2004
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#9
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Join Date: Dec 2003
Location: Eagan
Drives: 06 RSX
Posts: 503
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...shut up :razz2:
I'm used to the G54B, not the 4G63. Long live TORQUE
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05-30-2004
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#10
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ConArtist
Join Date: Oct 2003
Posts: 1,960
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Kougar 
As far as the problem goes, if you are not having ignition problems at higher RPM, I wouldn't waste time looking for it at idle. Check everything eric(LightningGSX) mentioned, after that, go throught he BISS adjustment while grounding the appropriate plugs then check your base timing while you are there.
__________________
Quick Precision Racing, Inc.
"Always Raising the Bar!"
651-488-7774
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06-01-2004
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#11
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Guest
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Thx guys I'll go and bring it to a dsm expert and see the real problem, Thx alot guys for the help
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06-01-2004
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#12
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Guest
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You want to adjust isc when car is warmed up or ideally on warm day. Must adjust isc (biss screw) correctly. I set at 1000 with dsm link and my crazy cams. I know I explained on later thread and I talk too much. Reply to me or contact if you want me to help and live in MN, otherwise I wish the best and hopefully get corrected.  |
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