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<blockquote data-quote="cuscostrutbrace" data-source="post: 2712574" data-attributes="member: 3867"><p>Punk,I dont suspect yours has different a/c amplifier,because your wiring is like complete BT wiring,from my eyes la.Dunno whats underneath the dash,hehe.The a/c amp is different between SVT and BT,and some other BT i've seen have a different a/c amp from another BT,maybe different version,model or year,dunno la.If you have the BT service manual,you can try back probing the ECU with digital multimeter and cross check with the std spec voltage.The AC1 pin on the ecu is shorted to ground when the a/c is switched on,thus rise the idle.I did not connect this pin as i'm using a separate idle up valve for a/c,works ok with me.</p><p></p><p>Pcmoddingmy,yes it improves idle a bit,but after a while its more like the same.My car idles at 800rpm.I think the ISCV will not be badly clogged even if not cleaned for many month,if you have air filter that is.But malaysian air quality not so good lately,who knows,coupled with blowby gases,PCV system might add up the clogging process.If after clean not yet solved,i think the ISCV might need replacement.</p></blockquote><p></p>
[QUOTE="cuscostrutbrace, post: 2712574, member: 3867"] Punk,I dont suspect yours has different a/c amplifier,because your wiring is like complete BT wiring,from my eyes la.Dunno whats underneath the dash,hehe.The a/c amp is different between SVT and BT,and some other BT i've seen have a different a/c amp from another BT,maybe different version,model or year,dunno la.If you have the BT service manual,you can try back probing the ECU with digital multimeter and cross check with the std spec voltage.The AC1 pin on the ecu is shorted to ground when the a/c is switched on,thus rise the idle.I did not connect this pin as i'm using a separate idle up valve for a/c,works ok with me. Pcmoddingmy,yes it improves idle a bit,but after a while its more like the same.My car idles at 800rpm.I think the ISCV will not be badly clogged even if not cleaned for many month,if you have air filter that is.But malaysian air quality not so good lately,who knows,coupled with blowby gases,PCV system might add up the clogging process.If after clean not yet solved,i think the ISCV might need replacement. [/QUOTE]
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