Honda-Tech - Honda Forum Discussion

Stock Civic VX Exhaust question.

Johnmadsen — Thu, 30 Apr 2026 17:23:34 GMT

Hi all hope everyone is doing well.
I have a 1994 civic VX everything is stock and it still get's 50 mpg. The long section of exhaust pipe between the muffler and cat is becoming perforated. Where are good places to shop for replacements. O really can get that section for 150 but shipping is get this, $400!!! Any thoughts and advise is welcome.

Thanks, John

Auto 16y8 - S20 manual swap

DreDown__ — Thu, 30 Apr 2026 09:45:55 GMT

I believe I know everything I need for the swap, but would someone tell me a list of everything I need? I just want to be sure I have everything before I take the daily out of commission. I currently have the s20 - shift linkages - starter - axels - mount - clutch and flywheel.

Ed4 16v 1.6, do I need to upgrade the knuckles for big brake kits?

Crash2474 — Thu, 30 Apr 2026 09:30:59 GMT

I have a ED4 Civic 1.6 16v sedan and want to put bigger brakes on. I can't find kits for my specific car. Do I have to swap the knuckles before I can upgrade?
Thanks for you help

Hi! From Lima Peru

Marcelo5108 — Thu, 30 Apr 2026 02:55:48 GMT

Hi everyone,

Greetings from Peru. I own a 1997 Honda Orthia with a B18B non-VTEC engine. I�ve been on a journey restoring the car, which has been in my family since 2003. This particular model is a JDM-exclusive, and it had to be converted to LHD to make it street-legal in my country.

The goal is to end up with an OEM+ reliable and cool wagon for daily driving�commuting to work, running errands, and traveling 400 km (250 miles) twice a month to my hometown. The car already does all of this, but it still has a few details to sort out related to the LHD conversion (which is very well done, but not perfect), a slipping automatic transmission, and some vibrations, possibly from worn engine mounts.

So far, I�ve done some light mods, including a 4-2-1 header, a custom cat-back exhaust, rays light weight rims and stiffer springs sourced from a local factory known for its great quality.

Next steps are fixing the transmission, replacing the mounts, and installing a set of adjustable camshaft gears to fine-tune the timing.

I hope to contribute to this forum with the little knowledge I�ve acquired, and also learn from you guys.

Thank you!

Fuel filter leak

ef cj — Thu, 30 Apr 2026 02:13:28 GMT

Change my fuel filter now it�s pissing fuel any potential fix ideas? Tried taking the bolts off and making sure they were in the right spots where the hole alights with line and then tightened everything down and still doing it so was thinking the threads on the bolts are potentially stripped?

Replacing Axles in a 1996 RHD Integra Type R

RHD96ITR — Wed, 29 Apr 2026 18:09:35 GMT

Running into issues finding the correct part to replace both driver's side and passenger side axles for my 1996 Integra Type R RHD w/ 4 lug.

Would these be the correct Axles for it based on the research I have found the outers to be a 36MM on these cars. https://insaneshafts.com/product/198...conversion-rh/

PFA:

PFA

Who do I trust?

civic_sosa — Tue, 28 Apr 2026 23:21:58 GMT

I need help!
I went to a Honda dealer about 2 weeks ago to have my 2009 Honda Civic Hybrid checked. They told me my transmission was delayed, engine bay was cracked, and my catalytic was bad. I got another opinion and was told only my catalytic needed to be changed. What should I do? The car drives good and only has 158k miles.

Part throttle hesitation

touge.DA — Tue, 28 Apr 2026 20:51:01 GMT

Hey there, I've got a 91 DA integra with a N/A jdm b20b swap running on a hondata s300 P28 ecu.
From time to time I will get this hesitation on throttle tip in or light throttle cruising, especially bad near ~2200 RPM. When lightly picking up the throttle after a lift, it briefly hesitates before resuming acceleration/cruising. When it stops hesitating it jerks back into acceleration and it's quite annoying. Asides from throttle tip in, it also occasionally will just cut out for a split second on steady light throttle (in the ~5-7% TPS range.) Now here's where it gets odd; The stutter/hesitation occurs at random, one day its fine the other its not, it goes away for days after pushing the car (ex. a good autocross or track day.) I replaced the TPS sensor which fixed it for ~8k miles before coming back, messed around with overrun fuel cutoff settings and TPS calibration. The overrun settings did make it less jerky, but still hesitates/cuts out. I have an AEM wideband and it seems to only happen after I've lifted for long enough for overrun cutoff to engage (leans out when coasting as intended), and when it cuts out mid cruise it leans out as if hitting overrun fuel cutoff. To me it seems like the ECU is seeing an incorrect TPS value at light throttle and thinks I'm lifting when I'm not.

Other things to note with diagnosis: 66mm TB, Sk2 pro manifold, Sk2 alpha header, tuning in open loop, fuel and ign tables are good and clean

Any input is valuable, thank you!

1999 Honda accord 2.3 lx coupe f23a1 swap with f23a

ErikG — Tue, 28 Apr 2026 19:49:58 GMT

I�m going to be doing a f23a jdm swap on my accord and I want any info on the swap I�ve been seeing maybe things but I want some information on what needs to be swapped and if I can run my stock ecu with the f23a

AMR500 SuperCharger On D15B2

Arlo.C — Tue, 28 Apr 2026 16:08:58 GMT

I have an AMR500 lying around, and I am thinking about running it on my 91 Hatch. What are everyone's thoughts about running it at 2 PSI on DPFI and OBD-0? I know it's a bit jank, so thats why I want to stay at low PSI, I'm not chasing HP but would like a tad bit more power

Do i really need a arp 625 bolts for my k24a2?

donaldand — Tue, 28 Apr 2026 11:31:30 GMT

Hello guys im new in here and a newbie building my first engine, so im really inspired by diymike channel on youtube budget build, i have k24a2 with its original head and will do some mods in it:
1. Skunk2 stage 3 cam
2. Supertech valvetrain set
3. Supertech forged piston 87.5mm 12.5 comp(i actually want to use nippon racing 87.5mm type s cast piston but a guy in other forum told me to get a forged piston to if i want my motor to last in drag races)
4. Maxpeeding rod this come with arp 2000 rod bolt(i was gonna use my original rod but my it is quite rusted and have some kind of stone like sludge in its body)
5. 4p type s oil pump
5. Ati super damper
6. Action clutch lightweight flywheel
7. Acl race or king race

I hope this setup will get me to 300hp ish and i understand due to long stroke of k24, this engine doesnt like high rpm and im fine with it, a guy told me to get arp 625 rod bolts if i want these to lasts a lot of 8k pulls, but the price of arp 625 is quite expensive about 400$ i think the bolt is 3/8" 1600"?
Do i really need arp 625? I think its quite a mild build my setup?

This is the pic of arp 2000 that come from maxpeedingrod

Any Value here? #659 in 1997

flyusmc — Tue, 28 Apr 2026 09:40:00 GMT

I�m thinking of buying a 97 EX coupe 80K miles. Vin is 1HGCD7160VA000659

chatGPT says this is one of the first cars to roll off the assembly line in 97. Is there any intrinsic value or things to watch out for on this?

I don�t suppose anyone can do a carfax type report?

Thanks!

Desperately need help identifying rear calipers

EGK20APOWER — Mon, 27 Apr 2026 19:03:31 GMT

Hi all, recently purchased an EG. The rear left calipers sprung a leak however the caliper setup all round has been modified to a big brake setup. Ive tried a 1996 Integra type r caliper and an MG zs180 caliper. Neither calipers bridge is wide enough. With a verniers the caliper currently on the car bridge measures to be 45mm. It's also a Lucas caliper. Any ideas ?

2020 odyssey going into manual mode by itself.

miahmouse — Mon, 27 Apr 2026 17:57:20 GMT

Looking to see if anyone has run into this issue. Our 2020 recently, randomly goes into manual mode and back. Sometimes rapidly, sometimes it won't leave it until you press the Drive button. The dealership of course couldn't replicate the issue. Vid below. Apologies, the dash is dusty.

vid of weird issue.

Jerking on acceleration and deceleration

RobotechXB9R — Mon, 27 Apr 2026 12:01:17 GMT

Recently did a lot to refresh the engine on my 98 Civic CX, 5 speed. I've replaced all the sensors, new IACV (twice) and new motor mounts. Replaced head gasket, had head machined for flatness, etc...

Issue I'm having is sometimes, after driving the car for a several miles, it will throw a P0505 code and the car will begin jerking when pressing the gas pedal or releasing the gas pedal. If I clear the code, it acts completely normal. The time it takes for it to start acting up varies greatly. Sometimes I will drive it for 20 miles and never skips a beat, then other times it happens after only a few miles into the drive...I've checked for vacuum leaks, none that I can see even after smoke test.

Any ideas on what to check on next that results in this behavior?