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Old Oct 8, 2006 | 02:45 AM
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random TPS question

i got my TPS set to the correct voltages, but now i'm wondering why i have a high idle (~1500rpm when cold, 1000rpm when warmed up)

in the howto's i found, they said to unscrew the idle air bypass screw on the bottom of the throttle body and i couldn't find it, so i'm guessing thats my problem... can somebody show/tell me where this screw is? i have the throttle stop screw backed all the way out and have the TPS adjusted perfectly for both the narrow and wide range, and i'm guessing the idle is high because of this mystery screw...
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Old Oct 8, 2006 | 02:50 AM
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The screw is located right under the throttle body. Don't have a picture, but I'll have a shot lol. Locate the fuel cap. Find it and diagnle on the left - 10'oclockish from the fuel cap.
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Old Oct 8, 2006 | 02:52 AM
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the fuel cap...

???
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Old Oct 8, 2006 | 02:52 AM
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If you can give me a picture of your engine, I can show you exactly where it is
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Old Oct 8, 2006 | 02:56 AM
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are you talking about the oil fill cap?
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Old Oct 8, 2006 | 02:57 AM
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Yes the fuel cap lol.. its almost right next to the alternater. Have you got a picture? Even if you pm me the picture.
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Old Oct 8, 2006 | 03:06 AM
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there are atleast 3 adjustment screws on the UIM that i can think of... one points straight up and is closer to the alternator, one is down by the oil filter pointing straight down, and one is on the top of the UIM pointing towards the drivers side.
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Old Oct 8, 2006 | 03:11 AM
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My mistake lol... I said fuel cap lol... I ment oil cap... I just released! its the screw closest to the oil cap.
Attached Thumbnails random TPS question-idle2.jpg  
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Old Oct 8, 2006 | 03:12 AM
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My mistake lol... I said fuel cap lol... I ment oil cap... I just released! its the screw closest to the oil cap. Heres a picture.
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Old Oct 8, 2006 | 03:23 AM
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is this some kind of joke or something
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Old Oct 8, 2006 | 03:25 AM
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Sorry I posted twice... internet was slow... thats the best pic I had to help.
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Old Oct 8, 2006 | 12:26 PM
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that is the throttle pull adjustment screw. no
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Old Oct 8, 2006 | 08:10 PM
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3rd Gen owners are laughing all over the world.....The screw you are looking for is under the throttle body-driver side. Take your hand or an inspection mirror and look directly under the TB where the air inlet elbow bolts on. It is recessed back in a 5/8" diameter home - look for the slot of the screw head.
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Old Oct 9, 2006 | 12:15 AM
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is it directly on the bottom side of the TB or is it off the back of the TB close to the firewall?

i need a pic of this or something
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Old Oct 9, 2006 | 01:18 AM
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Idle picture

Here is a picture of where the idle screw is. Its right in the middle of the black circle!
Attached Thumbnails random TPS question-idle2.jpg  
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Old Oct 9, 2006 | 07:14 PM
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dude please just stop
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Old Oct 9, 2006 | 10:23 PM
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heres a pic showing the idle air screw you are looking for. its in the red circle.

-chuck
Attached Thumbnails random TPS question-idle_air_screw.jpg  
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Old Oct 10, 2006 | 01:06 AM
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Originally Posted by a3dcadman
heres a pic showing the idle air screw you are looking for. its in the red circle.

-chuck
ok sorry to hi jack this tread..but can anyone tell me what screws (and nut if any??) are there in the TPS adjuster(rear near firewall and the front where the throttle cable area??? i know there should be screws there but I have none to be honest...will upload pic. just need tread pitch, length etc....

cheers.


Last edited by S8nana; Oct 10, 2006 at 01:15 AM.
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Old Oct 10, 2006 | 02:08 PM
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the first pic you posted is where the double throttle plate stop screw is supposed to go. it seems you are missing this.

the second pic you posted is where the main throttle stop screw goes. its an impressed phillips head screw with a lock nut on it. you also seem to be missing this one
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Old Oct 10, 2006 | 02:11 PM
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Originally Posted by a3dcadman
heres a pic showing the idle air screw you are looking for. its in the red circle.

-chuck

thank you! thats exactly what picture i needed. blurry, but i get the point

also, you can get to that screw with the TB elbow on, right?
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Old Oct 10, 2006 | 11:13 PM
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Originally Posted by jacobcartmill
the first pic you posted is where the double throttle plate stop screw is supposed to go. it seems you are missing this.

the second pic you posted is where the main throttle stop screw goes. its an impressed phillips head screw with a lock nut on it. you also seem to be missing this one
thanks mate, you wouldn't be able to tell how long they are???
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Old Oct 10, 2006 | 11:44 PM
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Jacob...Sell me your car and all your problems will be fixed!
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Old Oct 10, 2006 | 11:54 PM
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rexhvn you just made me and other people dumbier by reading your post. Jacob the idle air bleed screw is easy to get to with the elbow on you just need a smaller screwdriver of course...its going to be a flathead(blade) screwdriver. Just feel around and youll feel the hole i guess...Also check for vac leaks you never know. How much was your TPS out of spec. Did the idle change like that after you adjusted it??? I dont see the idle changing that drasctailly if it wasnt even off that much. Also i guess you should also make sure the throttle cable is holding it open etc. good luck on getting your car going...im sure its something simple!
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Old Oct 11, 2006 | 02:40 PM
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i have the little black catch can for the charcoal canister undernear the TB elbow, so im thinking i cant feel this adjuster screw because its blocking it
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Old Oct 12, 2006 | 06:16 PM
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Jacob, bring your car over to my house... do it now.
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