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help!! my 20v idling problem!!
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<blockquote data-quote="me2kimi" data-source="post: 1063693567" data-attributes="member: 53421"><p>Hi all, just wanna share my experience.</p><p>I've converted my car to this spec:</p><p>SVT wiring mated BT ecu with BT aircon compressor.</p><p></p><p>And my stock SVT ecu is like this, donno early or later model.</p><p>http://www.zerotohundred.com/newforums/attachment.php?attachmentid=280106&d=1267527921</p><p></p><p>What I notice is idle up valve is not active anymore after using BT ecu.</p><p>Thus, I've also experience engine stall intermittently. </p><p>From my observation, my engine will stall immediately when I release throttle pedal.</p><p>After sometimes, I've DIY narrowband O2 sensor for monitoring.</p><p></p><p>What I get it, at the time I release throttle pedal i saw the narrowband sensor is too lean.</p><p>This is becoz fuel cut at that time and I also noticed that RPM gauge is at around 600rpm.</p><p>Sometimes it goes as low to 500 rpm and engine jerks a while before fuel is supply again.</p><p></p><p>What have I done is I increase fuel pressure using FPR (my AFR is still ok after tested with wideband). </p><p>So as a result, my engine is less stall now but still I felt it jerk at fuel cut time.</p></blockquote><p></p>
[QUOTE="me2kimi, post: 1063693567, member: 53421"] Hi all, just wanna share my experience. I've converted my car to this spec: SVT wiring mated BT ecu with BT aircon compressor. And my stock SVT ecu is like this, donno early or later model. http://www.zerotohundred.com/newforums/attachment.php?attachmentid=280106&d=1267527921 What I notice is idle up valve is not active anymore after using BT ecu. Thus, I've also experience engine stall intermittently. From my observation, my engine will stall immediately when I release throttle pedal. After sometimes, I've DIY narrowband O2 sensor for monitoring. What I get it, at the time I release throttle pedal i saw the narrowband sensor is too lean. This is becoz fuel cut at that time and I also noticed that RPM gauge is at around 600rpm. Sometimes it goes as low to 500 rpm and engine jerks a while before fuel is supply again. What have I done is I increase fuel pressure using FPR (my AFR is still ok after tested with wideband). So as a result, my engine is less stall now but still I felt it jerk at fuel cut time. [/QUOTE]
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help!! my 20v idling problem!!