I have a 93 civic cx with a jspec d15b its basically a d16z6. It has a ihi turbo 7 pounds dsm intercooler dsm 380 injectors 3 check valves dsm bov a small fmu not sure of the rate something like 6:1 and a vafc. the problem im haveing is after I boost when I come to a stop it wants to die I have correction set at like -20 and it increases about 2 every 1000 rpms and some times I have real rough transitions between vacum and boost it wants to bog for a couple seconds. Any advice would help thanks.

 

Remove the FMU. Problem solved.
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exactly remove the fmu.

 

thanks for the help guys

 

tell us if it did worked because i have a brand new FMU in box and now iam wondering if i should instal it

 

yeah it help what I did though was get a adjustable fuel pressure regulater cranked it up to 68 pounds to make sure I had good pressure under boost and turned the vafc down even more its at almost -35 to -30 it still ideals a bit rough but there is no bog at all anymore and the egt seems to stay ok ideal its at 6 boost its at 13/14 I have to get it dyno tunned to know for sure though.

 

Why don't you just go with the VAFC hack? Your car will be running a little better, but you won't need any check valves nor FMU. Still, if you don't want the rough starts, or the car trying to die on you, you need a better fuel management system such as the HONDATA.

 

all you need is the vafc and the injectors, no fuel pressure change, no check valves, and no fmu

 

Bobo let me know if you end up selling your FMU.. let me know what kind it is.

 

does the vafc hack work well with 380's?
I wish I could rock a hondata too someday