shane buss

Hey guys im just looking for any advice I can get. Car is a 2001 Trans Am A4 with a contintental 3000 stall converter, gm hotcam, 3.23s, and a slp exhaust.

I drilled the TB, raised the idle screw, and raised the idle in ls1edit to around 850.

The car idles A LOT better now, but it still will not start without giving it gas, especially with the a/c on. I have tried raising the timing at idle a little, but didnt seem to help.

I know the hotcam isnt that big, so why does it idle so shitty. What do the guys with BIG cams and A4s do.

:-(

Thanks Again,
Shane

Ragtop 99

iTrader: (7)

Atap the car at start-up from cold all the way to hot and see what your LTRIMs and IAC counts look like. Try 900 rpm idle with A/C on.

shane buss

my iac counts when warm and my ltrims are perfect.

I'll have to check cold, but when the car is cold everything is fine, only on warm starts do i have any issues.

Thanks,
Shane

Ragtop 99

iTrader: (7)

Try opening the TB blade a bit by turning the idle set screw a 1/2 turn.

98TAauto

iTrader: (2)

welcome to the A4 cam facky idle club <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

do like ragtop said.. Also you might wanna try 900 idle to see if that helps any

somedays mine wont surge any, but sometimes its PITA trying to start and idle <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> part of cam life i guess <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

shane buss

I still cannot beleive there is no way to fix tihs! Even the pro's like ed wright cant fix it?

:-(

I'm trying to trade my car in and it barely idles.. lol

BYBYC5

it can be fixed, i had the same exact problem look for a vacume leack, they will kick your butt, i had 2 of them and i "stumbled on to them days later, i dont know what the parts are called but the were the fitting right after theTB on the driver side and a few lines on the back side of the driver valve cover..

pedaltothemetal

I'm thinking of a choke that will manually open the throttle up when cold starting. All you need is something to depress the accelerator pedal, or a cable to pull the throttle open a little when cold starting. After it warms up, release the manual choke. Right now my foot is the manual choke. I maintain 1500 rpms with my foot on the brake when I back out of my driveway, or the car will stall.

Leo

Ozz

I never start mine with the AC on or it will hunt for idle then die, without AC on it hunts a sec then runs fine and then I can turn on AC and all is good.

TR 224/224 LSA 114
IDLE 850
Drilled TB blade to get it working right
IAT reads in the 60s

Ozz