slowturbocx

my 92 hatch has a stock bottom end d15b8. a 16v head and intake manifold. a t-25 turbo. i was wondering why my car runs so rich at idle or when im getting on it. black smoke everywhere any ideas would help me out, thanks

i have an 12:1 fmu and five check valves

Luserkid

Is your car tuned?

Ricey McRicerton

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid &raquo;</TD></TR><TR><TD CLASS="quote">Is your car tuned? </TD></TR></TABLE>
You can't tune an FMU.

slowturbocx

no i was told that with the fmu and missing link it wouldnt need a tune, but my car wouldnt start so i changed to the check valves and now its just rich. i was thinking about adding another check valve so it would see less air at the map sensor and turn the fuel down.


i want the flames to stop coming out my exhaust

slowturbocx

ok i disconnected the inline fuel pump and it still is too rich

Luserkid

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ricey McRicerton &raquo;</TD></TR><TR><TD CLASS="quote">
You can't tune an FMU.</TD></TR></TABLE>

Really i was unaware of that. Well i dont have one anyway so ehh.

Maybe its your FMU, whats your complete set up? Injectors, etc.

slowturbocx

92 cx pretty much stock ummm.... 16valve head, cx bottom, dx intake manifold, a t-25 with a rx-7 intercooler . 155 fuel pump a 12:1 fmu and 5 check valve because the missing link took a poop i was thinking about hondata but i dont want to spend money on just 10 lbs of boost on a cx

slowturbocx

im about to do a external cap conversion like in honda tuning mag. i think that would help my car a little bit anyhow maybe friday or somehtign. my car is starting to **** me off

Luserkid

Do you have an adjustible FPR?

slowturbocx

nope
but even at idle the car isnt seeing boost so the fmu doesnt work. so it should be running fine like n/a

Luserkid

At idle the car shouldnt be seeing boost anyway.

You dont have injectors or anything correct? Try taking off all your fuel stuff, FMU, and fuel pump and see how that works. You shouldnt bog or anything.

Ditch the FMU and get a VAFC and get that thing tuned, i only heard bad things from FMU's and this is one of them.

slowturbocx

what happens when the car goes lean? when im boosting 10 pounds, boom

slowturbocx

maybe i'll buy one used or something

Built B16A

is your FMU hooked up backwards?

Deemeetree

10 lbs on a stock block? No tuning? Good luck.

JDMisGOOD

Just buy Uberdata or Hondata and get it running right!

slowturbocx

i dont think it can be hooked up backwards can it? well the vac. line and fuel but its not

slowturbocx

ive ran it before it just runs pig rich it still pulls hard

slowturbocx

you think i can buy that stuff used ?

Built B16A

if your OBD1, you can chip your ECU for about 30 bucks.. (you do the labor)... and other than getting someone to burn you chips, or if you invest in a chip burner.. uberdata is free... next best thing to Hondata.

https://honda-tech.com/zerothread?id=1110035

tunning is being discussed in this thread right now.

rodrez.

I'd say go with a Hondata or Uberdata to fine tune your set up, or pick up a used SAFC or VAFC and trim the fat.

BTW, what happened to your Missing Link?

Soccerking3000

if you really need a missing link i have one for sale... but on another note, how do you know its running really rich do you have a wideband? i suggest you get one of those first...

slowturbocx

it started sucking in then it got clogged when i puleed it apart there was oil in it i dont know what that was about

slowturbocx

raw fuel out the back of exhaust and a cool flame out the back the only problem is i dont have the flame thrower kit