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injector dead times problem

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Old Sep 9, 2015 | 01:32 PM
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imitek
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From: portsmouth
injector dead times problem

i have the actual dead times
Volts 8 9 10 11 12 13 14 15 16 17 18
ms 2.273 2.045 1.864 1.682 1.545 1.455 1.364 1.273 1.227 1.182 1.136

but in the motec the dead times only alow me to go up in 20ms at a time so i cant type the exact numbers in e.g. 14V should be 1.682 but i can only punch in 1680
will this cause a problem
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Old Sep 9, 2015 | 03:40 PM
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rotorhead
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From: cold
no. the reason it works like that is because of the way the decimal numbers are converted to binary. you're fine.
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Old Sep 9, 2015 | 10:19 PM
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A lot of ecus do that. That's fine.
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Old Sep 11, 2015 | 03:23 PM
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imitek
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From: portsmouth
Thanks very much for your help guys
Can the dead time cause rough ide and when gass pedel pressed it cuts out goes lean to 15afr once running for 5min it does not cut out just hesitant at the same areas it cuts out when cold
Even after changine the afr ?

Ive not had this problem with old injectors and have mest about with them

Also the current draw i have left as 0 on the m2r each injector is 9.1ohm

Last edited by imitek; Sep 11, 2015 at 03:46 PM.
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Old Sep 16, 2015 | 01:19 PM
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imitek
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From: portsmouth
Right i have come to find the dead times are fine just needed some fuel tweeking ive got it running at 18psi as before

i have another problme with the idling
Going to see if i can adjust the umi adjusters see if it helps
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Old Sep 16, 2015 | 01:34 PM
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Thats usually an issue with the accelerate injector time or throttle pump settings.
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Old Sep 16, 2015 | 05:55 PM
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imitek
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From: portsmouth
Originally Posted by IRPerformance
Thats usually an issue with the accelerate injector time or throttle pump settings.


( do you mean )Acell enrichment or injector timing


Throttle pump setting ?
Is that the screw on the tps side facing up or the 8mm nut on thread above the throttle linkage
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Old Sep 17, 2015 | 09:57 AM
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Accelerate enrichment/throttle pump. Those names are used interchangeably depending on the ecu you have. Throttle body adjustments have nothing to do with that.
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Old Sep 17, 2015 | 01:51 PM
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imitek
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From: portsmouth
Ahh ok thank you i will have another play with the decel clamp an enrich
Tables
It feels like a mechanicl fault may be just me
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Old Oct 18, 2015 | 03:35 PM
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From: portsmouth
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