Honda-Tech - Honda Forum Discussion

OBD2A P75 Manual ECU

GreatWave — Sat, 18 Apr 2026 14:25:30 GMT

Picked this up from another member as a second-best option, but finally found the OBD1 ecu I was looking for. So now this one is up for grabs for somebody else's project! $150 plus shipping from 43105.

new to me 99 accord

nawtaricer — Sat, 18 Apr 2026 11:17:23 GMT

being a 25+ year owner of japanese cars i bought a different brand of car... went from suzuki to honda. needed a reliable daily driver that wont break the bank on fuel economy. wife found a fresh listing on a '99 accord that has been well maintained, so my son and i quickly finished the fuel tank in the suzuki vert and wife and i ran to town with cash in hand to make the purchase....

new to me '99 honda
191, xxx km. engine replaced at 81, xxx .a/c/t/pw/pl/pm/ps leather well equipped good tires good glass
replacement for the geo metro/pontiac firefly/chevy sprint

with good maintenance i should see 400,xxxkm .....hopefully- vehicles are a terrible investment
a few quirks to work out (immobilizer key issue) but thats to be expected on this age of vehicle-worn out keys.
but does run very well, shifts very nice.
looking forward to gleaning info from this site and members , to make the car run its best and what parts/ repairs do and dont work.

MAP Sensor Wires

2007HondaPilot — Sat, 18 Apr 2026 02:43:27 GMT

Hello All - first time poster here - thank you in advance for your help.

I have a 2007 Honda Pilot EX-L 4WD - J35A9.

Can you please tell me what gauge the 3 MAP sensor wires are ? My connector is toast so I have to splice in a new one - I will be using 3M heat-shrink butt connectors.

Thank you very much.

Car Upgrades

AlexB-Cal — Fri, 17 Apr 2026 19:18:09 GMT

What are the best ‘bang-for-your-buck’ upgrades for improved handling or reliability, rather than just aesthetics, for my CR-V 2017? Open to suggestions. Thanks.

creeping idle issue

n1xwl — Fri, 17 Apr 2026 18:58:44 GMT

For the last two weeks, my 2003 CR-V LX has been experiencing idle issues. It starts and idles fine initially, but after driving for 40 minutes to an hour, when I park, and let the engine idle, the rpm starts to go up to 1500 rpm. The longer I let it idle, the higher the RPM creeps up. The temperature is normal, and the cooling fans operate as it should. Just to be thorough, I replaced the IAC valve along with a new gasket, but the problem persists after driving for over 40 minutes. I also checked for possible coolant air pockets in the radiator, but there were none. What else could be causing the idle to increase?

Aftermarket muffle on stock exhaust?

Slowdb8 — Fri, 17 Apr 2026 14:50:18 GMT

I have a 2000 integra gsr but it has the 94-97 muffler. I would love the 98-01 muffler but prices are crazy and rare.

Anyone know any aftermarket muffler that fits directly on a 2000 integra gsr?

B18B4 Idle Issues

K24z3SA — Fri, 17 Apr 2026 07:44:09 GMT

Hi Gentz, I am new here!

I recently purchased a Honda Ballade 180i(I am from South Africa), and the car has some weird idle issues buggiing me out! The car idles very high 1.3-2k rmp, and when I press the brakes it goes to 2.5k rpm.

I already changed the IAVC with three different ones, the Fast Idler has been tightned and cleaned. Checked the coolant lines to the IAVC it gets warm after I got the block out.

I also get code 11 on the CEL flashes, but I cant seem to figure anything out as most people differ on what code 11 is.

Will upload videos when I get the chance.

Thanks!

No luck finding Rebuild kit

ef cj — Fri, 17 Apr 2026 01:11:47 GMT

Looking for a rebuild kit for 88 dx hatch and I�m having trouble finding and identifying a rebuild kit that will actually work what are the main sizes of the rings/bearing and should I go oversized pistons and get the block machined? Aswell as haven�t been able to find connecting rods besides maxspeeding rods are they decent enough for a daily?(will be going multi port at the time of the rebuild also)

How achievable is 250-300hp RELIABLY on a boosted civic?

StaibraV — Fri, 17 Apr 2026 00:13:59 GMT

Could I get 250-300 out of a stock block(D16y8)? I'm in college so i dont have the budget for an insane build nor do i want something crazy fast, is this achievable on a stock block reliably?
Any first hand experience would be huge thanks!

Suspension and Wheel Advice

varjo1999@gmail — Thu, 16 Apr 2026 20:11:10 GMT

Currently planning out the repair and restomod of my 2000 DC4 Integra and am looking for a good suspension for daily driving, year round and I like to run the turns. I need a suspension height of around stock minus 1-1.50 as I have to deal with a lot of steep entries and currently have to come in slow and at an angle of the car will hit the nose or scrape the sides.

As to the wheel, they are WhislerWhisleguessing 8" or more by how much theybstretch the tires and stick out. I like the 16" size but not sure what budget friendly wheels would be correct.

Chiming in from the PNW- I want to make silly decisions with a CRV

chris.the.dingo — Thu, 16 Apr 2026 11:59:58 GMT

Yeah, who wouldn't want a fun grocery getter that can actually get out of the way of itself?

I came up through the old Hot Import Nights era, but never owned a VTEC Honda, just an EF Si hatch that I loved to death and sold when I shouldn't have. Since then I've been through the drift, VIP, Euro, Subaru (hung there for a while), then off-roading.

My car just got wrecked, and there's no way it isn't a write off, so I'm poking around for a platform as well as a fun motor. A B20 VTEC sounds like all kinds of fun, will rev faster than my old Foz, and I still get AWD. Once I start breaking stuff there is when the true fun begins.

I look forward to learning more, and if someone has a ready-to-go motor, let's talk.

2004 CRV: Brakebooster

MagnusBakke — Thu, 16 Apr 2026 09:07:56 GMT

Hi,
I have to change brake booster for my Honda CRV, and for some reason it is bloody impossible to get a hand on the part. I live in Norway and have had different mechanics trying to get the part for it with no luck. I can't seem to find it online either, so i try here in hope someone out there has the part. Used is no problem as long as it is working well.
I live in an area with pretty long distances so suddenly not having a car any longer is really making a difference, plus I really do love my CRV so its terribly sad to not be able to use it because of a relatively small problem.
Really hope someone out there will see this post:)

Information:

Fullt modellnavn: Honda CR-V 2004, AWD
Region: Europe
Generation: 2. gen (RD4/RD5/RD6/RD7/RD8)
Engine: K20A4
VIN-number: SHSRD87604U233112
Gearbox: 5MT

- Magnus

1996-97 Ignition Switch compatiblility

HOGMAXXING — Thu, 16 Apr 2026 07:31:06 GMT

Hello all, I was looking to replace the ignition switch in my 96 civic, but the easiest switch to find is part # 35130-S04-305, which I see is compatible with the 98-00 civics. Since the ignition switch assembly is seemingly the same from 1996-2000, would it be safe to use this part in my 96, or are there wiring or other differences I should be aware of before proceeding? Thank you for your time.

Mystery oil leak

GioNZeros — Wed, 15 Apr 2026 19:18:06 GMT

I have a leak on my driver side, its been riding up and coating the wheel. Been trying like hell to find it but I'm at a lost. I've replaced the oil cooler gasket, breather box o ring, oil pan, head gasket, valve cover gasket and grommets, and still have found nothing. It doesn't leak at idle cold or warm, from what I can tell. And that's sitting there head on the ground for 5 minutes. So my only assumption is it has to be while the car is moving and im about mid range rpm when it leaks. Any ideas?

B16A2 Knock Sensor & O2 engine light

Pi�kot28 — Wed, 15 Apr 2026 16:32:08 GMT

Hello, i have EK4 with B16A2 300k km. I replaced Knock sensor with "Hofer products" one for 30� (old one broke) and it worked perfectly for 10km then it started poping engine light for O2 sensor and Knock sensor, always simuntainesly and randomly. Sometimes after 20km of hard driving and other times after only 500m away from home. It always go away when i turn car off and on again. The preformance doesn't drop after engine light comes on. I also institaled new ignition coil and new sporty exhaust header. Knock sensor continiously out put voltage of 0,04-0,06V and rearly exceds to 0,08V. Should i buy OEM KS for 200�? Maybe new O2 sensor??? Thanks