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A crushed FPR is a wildcard.

The walbro alone will raise your fuel pressure a couple psi at the rail. But it won't be over 57 or so.

The FPR crush should net you 65+

If you used a CT-e tool, it should be between 65-75 with a walbro. If it was done ghetto style, it could raise it to as high as 90+ which is dangerous with a walbro.

Since you're worried about low pressure, that's probably not your problem.

The most common thing people have issues with on the stock returnless system, is improper installation of the pump. I'd pull the cage and take a look at the pump. Make sure the o-ring is above the white sleeve on the outlet. Some people have put them on backwards or left the white sleeve off altogether. In that case the o-ring blows out and bleeds off pressure back into the cage.

 

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i bought a used honda tool for removing the pump cap.

best thing ever. makes things go so much faster.

Something tells me there aren't many of those floating around the internet for sale.

 

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So can I ask.... why do you think you have a fuel pressure problem?

 

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Well, idk every car is different. I would tune out the STFT's and worry about fuel pressure if I saw an issue in boost. But I'm a n00b so idk.

 

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Your idle isn't a good indicator until the car is tuned. Every car will need little different indexing on the idle columns to get the trims in check (Mike definitely knows this). I'd just stick with Mike and he'll get you all straightened out.

 

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I'm not doubting mike at all, but I don't think he has time to diagnose mechanical issues anymore so I'm trying to figure this out on my own :shrug:

No I got you on that. I'm not doubting that your car might have had a small issue with fuel pressure. But now that you know everything is put together properly. You should probably try to tune it and see if it behaves.

 

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I guess we'll see what mike says! I'm so anxious to drive my civic again, its been 7 weeks now

When I was driving it this morning, I heard the Tial blow off for the first time, it was so cool. Totally spoke to the 23 year old ricer in me lol

lol. Yeah I've been dailying this CX and it's soooooooo slow and super ROUGH. The refinement level on the newer Civics is night/day. When I get in the Si now I feel like I'm driving a laser guided missile. I miss it. But we sold the TSX so the wife gets to drive the Si again and I'm in the slow car.

 

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If you watch this video, at around 1:45 doug does a close up on the gauge during a dyno pull and a bit of idle. I used this exact same gauge on my Si and it behaved similarly.