Black 99 Bird

iTrader: (31)

I installed a Shaner TB on my 99' T/A. I drove the car about 50 miles with no trouble, and the other day I got the SES light. I already reset the PCM to see if it would come back, and it did. Took the car to autozone to get the code pulled, and it is showing P0507. The guy at Auto Zone said it showed the Idle Control System, and RPM high. So what does all this mean? TIA!

AnthonyR

iTrader: (3)

Maybe the blade is not closing all the way at idle, have you adjusted the set screw for the blade at all? You may want to adjust it lower and see if it helps any.

Black 99 Bird

iTrader: (31)

Never thought of that. Will the TB have to come off to adjust it?

cyphur

iTrader: (10)

not really if you can work it. its over where the tb cam stops when closed.

AnthonyR

iTrader: (3)

I am pretty sure it's a T15 bit, but a small allen wrench may work also (not sure what size). The screw is in a pretty tight spot, if you can get it with an allen wrench you are ok but if you use the T15 bit you will have to remove the tb, no big deal just 3 bolts and it pops right out. If you want you can flip the screw so the head is on top for easier adjustments in the future.

Bo White

iTrader: (59)

Yes, t15 bit

BTL FED

iTrader: (9)

Do yourself a favor, go ahead and take the TB off, and take the T15 idle screw out and flip it around so you can adjust it from the top, makes like 1000 times easier, next time you need to mess with the idle screw you will be glad you did it

Black 99 Bird

iTrader: (31)

Thanks for the advice, great tip! Now if I am getting to much air around my TB blade will this make my car run lean? And if it is making my car lean is it OK to drive it as long as I don't run it hard? Thanks again guys!

Another_User

No. The air is metered before that point, it will not run lean.

I never turned my screw around. It is amazing what you can do with a torx bit and a wrench. And the added bonus? I can adjust my blade with the car running. I never did quite understand this whole "flipping the screw" around thing.

BTL FED

iTrader: (9)

All you have to do is turn the car off, open the blade with your hand, and turn the screw whichever way it needs to go, I find it alot easier to adjust, but thats just IMHO

98A4LS1

iTrader: (1)

My ported TB resulted in lean condition and hunting idle. If you flip the screw around and have a high idle, make sure you have enough thread left to adjust the idle down. I did not.

Another_User

If you got a lean condition, you had a leak somewhere around that TB.

98A4LS1

iTrader: (1)

You're probably right. I've checked several times now and I can't find a leak.
The idle hunting is annoying but not to bad ~100 rpm, originally 200-250 rpm right after ported TB install. Thanks for the reply!

Another_User

Make sure you check around the sensors and the throttle shaft. You can easily get a leak around there.

98A4LS1

iTrader: (1)

I'm going to check for leaks one more time today. If I find no leaks, I think I am going to try adjusting the MAF calibration table (ie MAF airflow vs frequency) up 2-3% and see if that helps.
Thanks

Black 99 Bird

iTrader: (31)

Well I pulled my tb off today and compared it to my stocker. The stock TB has virtually no gap between the plate and the inside walls of the tb, the ported tb has a very defined gap all around the top of the TB plate, and a small gap at the bottom. I tried adjusting the throttle stop skrew but it did not help, is there anything I can do?

davered00ss

iTrader: (4)

There seem to have been a lot of issues lately w/ The Shanner TB's. A friend of mine is having Idel issues after installing his S3.

Black 99 Bird

iTrader: (31)

I sent Mark an e-mail, hopefully there is a way to fix this without having to trash the TB.

Another_User

If the back isn't level you could get it shaved flat at a machine shop, like you would with a cylinder head. My Shaner fit fine. One thing I noticed: there is an O-ring that needs to get swapped from your old TB to your new TB. I think it was where the TPS sensor goes. If you miss it, you will probably end up with a leak. As for a car that doesn't idle right, that more than likely has to do with setting the set screw. If that idn't right you are pretty much screwed, especially if you don't tune your car.

Bo White

iTrader: (59)

When I port a TB I do not take any material out around where the TB blade is at rest(since this is very important for idleing) but you can see slight amount of light around the blade compared to before simply because the lip is no longer there to block line of sight around the blade. Just giving a little info on comparing one that is ported to one that is not. Now if there is an actual gap and no factory machine marks directly where the blade is at rest then the TB has had too much material taken out. One fix is to take the blade out and have a local welder spot weld the bleed hole up and reinstall it and see how it idles then- or install a vette blade since they do not have any bleed holes in them.