SkillOBskilled

iTrader: (1)

So I changed my plugs and regapped the valves as part of the 105M service. I also had the TB bored out, installed the plenums and P2R intake.

I know its a lot of stuff, so I would been quite surprised if it started and ran just fine...well it did start, but certainly doesn't run fine.

When I first turned it on I got two codes. 1319 - IMRC stuck closed and 0113 Intake temp HI. The car revs from 1 to 2.5K by itself and then lets down back to 1K and then back up every couple seconds. I reset the ECU, it cleared the codes, but behaved the same way. It then threw 0505 - IAC system malfunction.

That makes sense, as its obviously malfunctioning reving up and down. At some point it settled on 1.5K and was reving in much smaller increments right around that.

Thoughts?

artbran

iTrader: (2)

IACV is shot. Replace it and you should be OK.
as for the IMRC, I was not aware that there was a CEL for that as mine was broken when I got it and never had a code.
As for the intake temp hi code, I think that you might have not plugged in the intake temp sensor on the rear plenum or there is some other problem with the sensor..

fuzzy02CLS

iTrader: (2)

Could be a vacuum or gasket leak as well. Is everything plugged in correctly?

SkillOBskilled

iTrader: (1)

I put some restriction on the IACV intake port and the engine idles perfectly.

Adjusting the idle doesn't do anything, the screw is and has been closed all the way, so I can't lower the idle speed that way.

It could be a vacuum leak, I don't understand why it wouldn't just have a consistent idle at above normal.

SkillOBskilled

iTrader: (1)

I also made a vacuum leak by pulling one of the bolts of the plenum cover. The car idled at 3K...with A LOT of whistling. Doubt I have a gasket leak, those are apparently LOUD!

Hmmmm...I ll get back to this tomorrow. Thanks for the input fellas.

typeR

sounds like a leak somewhere , who did the tb ?

fuzzy02CLS

iTrader: (2)

It's a leak. :wink: The idle speed isn't adjustable you should NOT mess with it.

SkillOBskilled

iTrader: (1)

Jorge of Maxbore.com

Took him almost two weeks to get it back to me, it was a painful experience to say the least.

When I completely plug the IACV intake port the car still runs, so a leak makes sense.

When you have a leak though downstream of the TB, wouldn't the MAF not pick up the additional air and hence not provide the fuel? I would assume I am running lean as all hell, but if NO air is getting in thought the TB shouldn't the fuel pump pump NO gas?

SkillOBskilled

iTrader: (1)

How is the idle speed not adjustable? the 105M service asks you to re-adjust your idle speed. There is also an idle speed adjustment screw which basically creates a small leak through the TB.

typeR

no MAF only MAP... theres a leak somewhere ... try to look at the butterfly , got a spare TB u can throw on ?

fuzzy02CLS

iTrader: (2)

There's a screw yes, but the idle is ECU controlled. The screw is only there in case something needs to be adjusted for testing. The service manual strongly warns against it.
If you do touch it it should be set to 750RPM+/- 50 rpm & all accessory's should be off. It also says idle speed should not be adjusted if any CEL is on. Page 11-169 of the 01-03 service manual.

Moodist

iTrader: (2)

When you installed the plenums, did you get replacement hoses that were a bit longer? Like everyone said, it is a vacuum leak. Double-check the hoses running to the plenums. Now that you have all those mods, I'd be interested what you are going to do about tuning.

scholtew

100% a vacuum leak somewhere in your intake. I have had this problem with different acuras over the years so check that bitch and all your hoses.

SlickShiftNall6

iTrader: (4)

Good luck with your problem, it does sound like a leak.
Do you guys think that doing a seafoam treatment might lead you to the problem?

It should be pretty quick when running right. When its fixed are you planning to dyno/tune? Also how does it ride with the dampers, and mounts? I got the dampers and i'm thinking if the mounts are overkill for NA mods.
btw- my p2r intake and tb spacer create a noticeable whistle when accelerating.

SkillOBskilled

iTrader: (1)

Just an update for those who may have a similar issue in the future.

I redid all of the gaskets, didn't help. I ended up taking it to R/T tuning, they used a smoke machine and did not find any leaks. Turns out the IACV was gunked up.

SlickShift

I did get the car dynoed and tuned...check out the dyno discussion section. The mounts work pretty well, I don’t have any excessive vibration issues. Wheel hop is virtually gone, but we will see how they stand up to the tarmac this Friday.

Between the mounts and the exhaust, I really can't hear any whisting from the intake.

artbran

iTrader: (2)

hmmm... but when I said it in the beginning, No one listened...

Fine. No one listen to me. What do I know. I have only dealt with this more times that I can count on my hands and feet...

LOL

JK