CAMAROZ28AQUINO

Just picked up my car today, stock 346, comp 228/232 .588/.595 110+4 LSA, Longtubes, catted Y, and a catback, stock intake/throttle body, 3.73 gears and 3000 stall. Any tips on how to get my car to idle on its own on the stock tune without drilling the tb? im getting it tuned in the spring!

12secSS

iTrader: (30)

It is wanting more air. So either: drill the TB hole larger, adjust the idle set screw to hold the throttle open a bit more (you do not want to go to high, as a code can set), or have a local enthusiast with tuning software quickly adjust your idle to work.

CAMAROZ28AQUINO

alirght ill try that, do you think if i keep my foot on the gas for a while and just let off slow it mihgt want to...i think its only been ran for like 20 minutes since the install

TheLS1Kid

iTrader: (12)

Let it warm up first.

Keep your foot on the gas and hold the idle at 1k rpm.

I may be like 5 minutes but the car should want to idle on its own after it is warm. My car used to be like that with the old LS6 intake. After the FAST 90 install it would start right up and idle perfectly.

Hope it works out for you.

SSpdDmon

iTrader: (10)

I'd say don't even try. You're going to create more problems for later down the road. The stock A4 tune idles at 550rpm when in-gear at a reasonable coolant temperature. That cam will struggle to maintain idle at 750~800rpm even with a tune. At 550, there just isn't enough of a vacuum. By drilling out the hole in the throttle body, you're essentially going to be adding in way more air than the PCM thinks it needs. It'll try to compensate with the IAC until it can't close the IAC any further. Why is this bad? When the tuner does go to tune it, you're going to have too much of a hole in your throttle body blade and the idle or off-throttle characteristics of the car will be a bitch to try and fix.

I say bad move. If you couldn't afford a tune, you shouldn't have modded the car.

radkon

iTrader: (2)

Try the idle air screw, your cam isn't that big. That may get you by until the spring. Don't drill the TB, thats a hack job.

CAMAROZ28AQUINO

I can afford a tune easily rate now, money isnt an issue to me, i modded the car now so i dont have to install the cam in the spring. The fact that its 20 degrees here rate now, and the roads are salted to ****, i cannot justify driving it 4 hours in the salty *** roads in the snow for a tune when i can just wait until the spring. I just wanted to know if i could get it to idle on its own before i put it away, which i did accomplish tonight in about 20 min. So it was worth it!

FadedSS

iTrader: (15)

dont drill your tb. my buddy taped 2 pennies to the tb where it sits down to keep it from completely closing and therefore idling higher. sounds really stupid but it worked. for more input and a better description pm "ls1adamls1 " and ask him about his "2 cent mod"...

SSpdDmon

iTrader: (10)

Maybe I should have been a little more clear. I wouldn't suggest drilling the throttle body. If you want to get it to idle by pedaling it with your right foot or by adjusting the TB set screw, that's fine....it's not permanent. I was more concerned with the suggestions above that said to drill out your TB until it's not a problem.

rocksws6

iTrader: (4)

That's a horrible idea. That's just straight stupid. Your buddy is lucky he still has a motor in one piece.

FadedSS

iTrader: (15)

lol how do you figure? he didnt put them actually inside the tb. im talking about on the outside. the worst thing that could happen would be that the pennies fall off. its difficult to describe but ill try to get a pic...

12secSS

iTrader: (30)

I mentioned drilling the throttle body hole only as a temporary "fix". If this was done, then you would also need to disclose this to the tuner and/or supply a spare stock throttle body blade replacement (I have many laying around for when I come across a drilled throttle body).

TheLS1Kid

iTrader: (12)

I see what your saying, but even if they fell off from the outside if he accidently opened the blade again it could suck the pennies in. If his MAF is descreened he'd be in deeper ****.

FadedSS

iTrader: (15)

naw man im talking outside the throttle body! know where the tb rests when closed?

let me try to describe it better:
are you familiar with grinding down the bumpstop to get the tb blade to open a full 50/50? im talking about taping pennies or some other sort of "spacer" on the bumpstop so that it cant fully close, therefore idling higher.

keep in mind im suggesting a temporary fix before getting a tune not a permanent mod

Low02

iTrader: (14)

Why would you tape 2 pennies to it? Theres a set screw that you can screw in or out to adjust the idle.

FadedSS

iTrader: (15)

we didnt want to mess with the idler screw..but thats the definately the easiest way to do it

CAMAROZ28AQUINO

oh okay, i see.. Yeah def. no drilling the tb for me, but will adjusting the set screw mess up my tps sensor? and will this help it to idle in gear, as you said, it wont and there isnt enough vacuum.

rocksws6

iTrader: (4)

I got you now, I thought you were saying that he taped pennies in the blade seat to keep it open. That's why I was like WTF?

FadedSS

iTrader: (15)

ya i figured thats how it was interpreted and didnt want to be an ******* about it. it was a temporary fix that worked well without adjusting the idiler screw.

nonetheless, to the op, adjusting the ider screw would solve your problem, goodluck bro

CAMAROZ28AQUINO

will adjusting the idle set screw mess up the throttle position sensor?