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Idle Rpm Question.......Crome

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Old Sep 5, 2005 | 12:45 PM
  #11  
Bone1's Avatar
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Default Re: Idle Rpm Question.......Crome

why I do trannys, dave and others like you do ECU's



It does seem the "target" idle is stock on this ecu, at night with the headlights on, 850-900 rpm idle, motor is happy. Without the ELD action, it drops to 700, then 15 seconds later the ECU starts playing with fuel/timing maps, idle fluc, then it dies..........
Old Sep 15, 2005 | 02:00 AM
  #12  
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Default Re: Idle Rpm Question.......Crome

Originally Posted by Mista Bone
why I do trannys, dave and others like you do ECU's



It does seem the "target" idle is stock on this ecu, at night with the headlights on, 850-900 rpm idle, motor is happy. Without the ELD action, it drops to 700, then 15 seconds later the ECU starts playing with fuel/timing maps, idle fluc, then it dies..........
stupid question but how much better is Chrome than TE? i know you have to pay for chrome but just wanted to get an ideaa of what the pros and cons are.

are you using carbs on the 1.5?
Old Sep 15, 2005 | 04:17 AM
  #13  
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Default Re: Idle Rpm Question.......Crome

no carbs, needs daves attention, then it should be fine.
Old Sep 20, 2005 | 02:41 PM
  #14  
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Default Re: Idle Rpm Question.......Crome

You aren't pulling as much vacuum at idle, so the ECU is reading off a higher fuel value. That's the problem.

You might need to raise the idle a touch with those cams, but that's cosmetic. Off to Dave with you!
Old Sep 20, 2005 | 05:13 PM
  #15  
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Default Re: Idle Rpm Question.......Crome

is it possible that my zex 59300 cam (lash set at 6 and be giving my shitty idle probs?? what i'm experiencing is very much what leed is describing.
Old Sep 20, 2005 | 05:22 PM
  #16  
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Default Re: Idle Rpm Question.......Crome

Originally Posted by Joseph Davis
You aren't pulling as much vacuum at idle, so the ECU is reading off a higher fuel value. That's the problem.

You might need to raise the idle a touch with those cams, but that's cosmetic. Off to Dave with you!
850 rpm idle (headlights on) I'm pulling 16-17 in/hg vacuum, 22-23 in/hg on coast down.
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