jayunsplanet

iTrader: (1)

I am having issues after cleaning out my IM and TB and installing OE spacers on both. Between 1,200 and 2,000rpm the car shudders (while driving). Car is smooth at all other RPM's and while accelerating. It's physically noticeable. CEL comes on at startup. TCS light comes on after 5 minutes of actual driving movement. There was so much gunk in my IM, perhaps I knocked off some loose crap and it made its way into the engine? Not due for an oil change yet. The engine also seems to stay at about 500rpms higher than normal. When ending a drive and I put it in park, the car will occasionally idle @ 1200rpm.




Ideas? I don't really have the time or desire to work on it myself, so I'll probably just take it to the shop, but I'd like to know what migh be going on first.

Hopefully this might help others as well.

Thanks.

01tl4tl

Check the throttle and cruise control cable slack- they need adjusting with the new spacers.
Check for vac line off somewhere
Check the 2 electrical connects by the TB, I think those can get reversed
If the rubber gasket for the IAC was damaged that will make the car run bad.
If any gasket material was left where the OE spacers sit, that will cause a leak
Are the bolts all double checked for proper torque. Things change!

jayunsplanet

iTrader: (1)

Where is that located? On the throttlebody?
That was def all cleaned off.
Everything was torqued.
I know that needs adjusting. I'm sure that's probably the problem. But after various adjustments to get the idle down from 2krpm to 700rpm, I just gave up. It idles fine now.
They are def all hooked back up.
I'm pretty sure I marked them and put them back on correctly.

fsttyms1

do all that and or go to a parts store and get the codes read.

jayunsplanet

iTrader: (1)

BUMP, please.

I took my car to my local shop today. They just called back and said they don't want to work on it because it's "modified". So now, I'm probably going to take it to reputable "high-performance" shop on Friday that builds drift cars. (I need to get it fixed soon, because I have to do an emissions test in a month.)

But from what I gathered on the phone (I'll get more info in person when I pick it up in a few minutes) the tech cleared the codes.

He said there was a misfire, a code "31" PFINH, and code 61 for battery voltage.
Now check this out... Interesting.
http://www.hondacarforum.com/honda-2...tcs-light.html

Remeber, this CEL and TCS light, and rough driving (1-2k rpm @ 45+mph) started after cleaning out the intake manifold. I really really think it's the throttle cable that needs to be adjusted. What else could it be?

P.S. -- My car has been sitting for the past 7 days w/ the battery disconnected at a car show. Last night when I started it up for the 1st time and drove it for about an hour, no CEL and no TCS light. Still rode rough. Of course, the CEL and TCS light came on RIGHT as I was pulling into the shop this morning.

jayunsplanet

iTrader: (1)

31-2 PFINH Sig Failure
61-1 Bat Volt Failure

6MTUA5

iTrader: (2)

That's weird mine has been acting up ever since I started it after it had been sitting for a few months. I'm going to replace the IACV to try and fix my rough idle.

01tl4tl

Clean the IAC Idle Air Control on the bottom of the TB unit.
Misfire- you may have a bad coil on 1 cylinder- buying 1 coil and trying on each cyl will tell if thats the case.
If you rinsed the Intake Manifold well with fresh water and then air dried, it should have gotten all the stuff out of it, or driving burns off the rest- just like seafoam treatment.
The throttle cable slack is not causing idles issues-
look for a Honda- Acura import shop- they will fix it right up.

jayunsplanet

iTrader: (1)

It's not an idle issue. It's while driving with the throttle at a precise point and rpm's between 1,200 and 2,000.

01tl4tl

ok- I thought you mentioned the IAC needed cleaning--- so take it all back apart and flip the metal base gasket over

Anyone--is it marked UP or TOP in an obvious way, or if you put it on upside down does it block a specific port?

burnerjunky

that one thread said that it could be water. check your air filter. Im thinking thats why mine is acting up, because i live in rainy oregon and i took my intake resonator off so im sure water is getting into there. Or maybe just water left in the intake from not properly drying it out before re-instalation.

jayunsplanet

iTrader: (1)

No, they can only go on 1 way to fit onto the studs.

01tl4tl

According to our resident expert- the metal base gasket can indeed be installed upside down, you may have to turn it or something- but it has been the cause of some proms recently
I was just wondering aloud if it was clearly marked on the gasket itself

jayunsplanet

iTrader: (1)

Blew smoke through the engine -- no vacuum leaks. (yay, me)
Spark plugs are arching. Replacing spark plugs. *crosses fingers*
Changing the oil too -- just because it's close enough to needing to be.

01tl4tl

Use NGK Iridium IX plugs- or ngk platinum
7 bucks each, cheaper than the denso and last twice as long- denso will die in 30k
Do not use anything else or suffer the consequences

celesTL

Every shuddering/hesitation problem I have had was because of ignition, usually the plug wires. If you replace your plugs, I would personally get new wires too. Even if they look good they can still arc and you won't get good spark. My old Isuzu turbo scared me bad until I finally bit the bullet ($30 ) and bought new plug wires. The throttle response cleaned right up! Good luck!

01tl4tl

ahhhh celesTL
Have you ever looked under the hood of your car?, or did spiffylube say they replaced the plug wires on your TL,
cause they have been running individual coils direct on top of the spark plugs since 2000

The coils on the TL will die without warning just for fun~

celesTL

Yeah, I've been under the hood, but not for ignition yet. I'm an idiot, I admit . I think I'll just have to stick to giving advice about cars I know something about. Thanks for the knock in the head!

01tl4tl

Just funnin ya,
I get in trouble for going to gen3 and giving advice that only pertains to us in G2~
Just had to laugh when I saw ~replace plug wires!!!!

jayunsplanet

iTrader: (1)

Going outside now to take it all apart again and flip over the IM gasket. *crosses fingers*, prays, hopes, dreams....

*EDIT* -- I'm looking at some of the pictures I took....


How can this gasket...



Go any other way on the manifold??



This is how it was sitting when I installed them


Both sides are different... how can you put it in upside down or backwards?

fsttyms1

Check the upper gasket.

jayunsplanet

iTrader: (1)

Fixed.

I was outside on the phone with Sean from O.E. Chatted for awhile. Right as we were about to hang up, he suggested taking a look @ the gasket below the access cover to the intake manifold... Sure enough. It was upside down. Runs like a champ now. I cleared out the codes as well...

So, I'll give it to 01tl4tl and fsttyms1 for both suggeting that. If I was inside, I would have seen the latest PM.

So in conclusion... make sure this gasket is in correctly so it lines up with the intake manifold. (I think I lined it up with the manifold cover. Not correct.)

Justy

That's great news that you fixed the engine shaking. I admire your perseverance.

Next, you need to fix your Dad's shaking from the stroke he experienced when he saw your disassembled engine on the lawn!

Just kidding.