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Air Fuel Controller, Could They Cause Problems

thatlbeme

By thatlbeme,
in Forced Induction Performance

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thatlbeme Enthusiast

thatlbeme

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Looking at a second hand r34 gtr that had a Fuel air controller installed and I was wondering if they are a bad thing for engine life. I would think that most GTR's would have had some mods done to them so was just wondering if I should expect some extra engine wear because of it, and what things I might need to have checked etc. Thanks if anyone has any advice.

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Moodles2 Grand Master

Moodles2

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By air/fuel controller are you referring to piggybacks? (Apexi SAFC is an example). As for engine life? If they are poorly configured/tuned then yes.. standalone ECU is always the best option, but not the cheapest.

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thatlbeme Enthusiast

thatlbeme

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By air/fuel controller are you referring to piggybacks? (Apexi SAFC is an example). As for engine life? If they are poorly configured/tuned then yes.. standalone ECU is always the best option, but not the cheapest.

Yes I think so, but I only had a picture to go pre compliance and its since been removed before it was available for inspection. I could only go on what the salesman told me. I will attach a picture if anyone could confirm that it is an air/fuel controller.

post-78962-0-94382300-1291952307_thumb.jpg

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thatlbeme Enthusiast

thatlbeme

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that looks like a HKS EVC, which is a boost controller

i dont think HKS make piggyback AFC's that look like the EVC model

Yep just googled HKS EVC and its a splitting image for the HKS EVC 4 boost controller, I guess the salesman would prefer I didn't know that. Jeez its hard to find an honest used car salesman. No wonder he said it won't be going back on after compliance work seeing how much it is worth. Thanks for spotting that paul

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mad082 Grand Master

mad082

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technically speaking a car can't be complianced with aftermarket mods (has to be returned to stock), and any aftermarket parts aren't allowed to be reinstalled after the compliance. don't think they are allowed to even sell them (although a lot do). i could be wrong though.

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thatlbeme Enthusiast

thatlbeme

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technically speaking a car can't be complianced with aftermarket mods (has to be returned to stock), and any aftermarket parts aren't allowed to be reinstalled after the compliance. don't think they are allowed to even sell them (although a lot do). i could be wrong though.

Yes that makes sense, don't know why he lied about it being something else though.

Fairly new to all of this so I guess I should ask is there anything I need to make sure of when they took it out, something capped off, modified ecu, missing sensors or something like that or is it a fairly straight foward thing to install and then remove.

EDIT: I found a diagram showing how its all connected and it looks like the only area I need to worry about is the wastegate. Seems that the HKS EVC is one of the better ones so I am hoping that the engine won't have suffered too much from the overboosting.Thanks everyone for your help as its going to be a steep learning curve for me.

Edited by thatlbeme
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