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bak bak from the back - ecu or mechanical

   
Old Sep 6, 2017 | 02:55 AM
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Default bak bak from the back - ecu or mechanical ?
https://www.dropbox.com/s/24jkgon3xw91k44/bak.mp4?dl=0

What do you make of the movie ?

ECU or technical ?

Thanks !
Elior
Last edited by elior77; Sep 6, 2017 at 03:06 AM.
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Old Sep 6, 2017 | 08:13 AM
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What kind of injectors are you running at what idle AFR?
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Old Sep 6, 2017 | 08:18 AM
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rx7 460cc

the afr is just a little rich then 14.7
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Old Sep 6, 2017 | 08:33 AM
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You can't idle @14.7 most of the time with these injectors.
Start enrichening your idle and see if this continues.
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Old Sep 6, 2017 | 08:36 AM
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seq inj and 14.7 and it holds no problem.

I'll try 14 or 13.5 just for the test.
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Old Sep 6, 2017 | 08:43 AM
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Things I would try are :Turn off EGO, if it stops, i would change my EGO Settings, then enrichen the Idle with EGO off, or play with dead times(i think this is a small pulsewidths issue, tho)
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Old Sep 6, 2017 | 09:13 AM
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What a good pw guess would be for those injectors ?
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Old Sep 7, 2017 | 12:38 PM
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Sorry, I never use this kind of injectors.
You should buy 4 new real injectors also bro, what's the point of risking your whole build on 89' junk?
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