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Old 12-21-2006, 08:05 PM   #1
07blacktr
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Default hks fcd

hey im new to the forums and to subaru i have a 07 wrx tr with tbe,injen short ram and a walbro 255 fuel pump and in 3rd gear and on it is hitting fuel cut so i bought a hks fcd and wanted to know wat to set it to cause first and second it is hiting 14 psi and right before it cuts out its at 16psi....what should i set the fcd too?
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Old 12-21-2006, 09:59 PM   #2
Nuke209
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oh no, injen intake...that's a no no
fuel pump, i think stock's good on stock turbo
they use the stock one on the vf39 upgrade too
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Old 12-21-2006, 10:19 PM   #3
qoncept
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With the catless exhaust, you're most likely getting boost creep you shouldn't be (or it wouldn't be so much higher than stock), and the real solution would to be to get some sort of engine management to hopefully tune it out rather than raising the boost limit with the FCD or you're very likely going to see det.
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Old 12-21-2006, 11:31 PM   #4
Master2192
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Quote:
Originally Posted by 07blacktr
hitting fuel cut so i bought a hks fcd
(US)d00000000000000000000000d.........you gonna blow yo engine! (/US)

Get some engine management before you put a rod through the block.
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Old 12-22-2006, 02:03 PM   #5
07blacktr
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would the cobb accesport work or better off getting a unichip and protune?
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Old 12-22-2006, 02:55 PM   #6
Turbo_Mike
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AP should take care of things
A custom tune would be the best.
A protune is done with an AP.
This forum is for none of that. Reflash using a laptop.
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Old 12-22-2006, 02:55 PM   #7
07blacktr
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does the accesport adjust fuel cut?
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Old 12-22-2006, 03:23 PM   #8
Ziggyrama
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AP will adjust your fuel cut threshold. I am not sure what the stock fuel cut is set at on 2.5L WRX but you're most likely hitting the fuel cut because you're running higher boost than the stock ECU thinks is safe. Based on your post, it's probably around 16psi which makes sense to me. This is a safety feature of the ECU to prevent accidental uber-overboosting. It's funny because I just answered a similar post where a guy was running an MBC and was hitting the fuel cut and didn't know what was going on. This is why you should really run EM given your hardware: open source reflash, cobb, UTEC, etc, etc.
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