102mm eBay Throttle Idling 2k
Thread Starter
Joined: Jan 2011
Posts: 1,921
Likes: 80
From: North Houston
102mm eBay Throttle Idling 2k I have a 2002 Z28 with a 383 LS6 that's still in the break in stages, it's got about 250 miles on it. The intake is a PP Typhoon 96mm inlet, LS2 style and I had a 92mm FAST TB on it. Well, I saw eBay offering a 102mm for half of what I paid for my 92, so I ordered it and installed this last weekend.
I cranked it up yesterday, and it wouldn't idle less than 2000 RPM warm! The 92 was idling at around 900 warm and no matter how I adjust the stop on the 102, I can't get it to get below 2000. I did reuse the gasket from the 92mm, but that was only because I couldn't find a replacement at my local parts store and it came off without breaking.
So I'm looking for any kind of insight y'all may have. The crank vent tube on the top of the TB has some play, it can be wiggled. If this were the issue, would I throw a code? Also, wouldn't a bad gasket throw a code as well for unaccounted air volume?
Also, is there a place I can get the gasket for a PP Typhoon intake aside from Professional Products themselves? What about an OBX spacer? Since that comes with two gaskets, I'm tempted to throw it in. But what's the ID of one of those? Would I just be putting myself back to a 92mm TB?
I cranked it up yesterday, and it wouldn't idle less than 2000 RPM warm! The 92 was idling at around 900 warm and no matter how I adjust the stop on the 102, I can't get it to get below 2000. I did reuse the gasket from the 92mm, but that was only because I couldn't find a replacement at my local parts store and it came off without breaking.
So I'm looking for any kind of insight y'all may have. The crank vent tube on the top of the TB has some play, it can be wiggled. If this were the issue, would I throw a code? Also, wouldn't a bad gasket throw a code as well for unaccounted air volume?
Also, is there a place I can get the gasket for a PP Typhoon intake aside from Professional Products themselves? What about an OBX spacer? Since that comes with two gaskets, I'm tempted to throw it in. But what's the ID of one of those? Would I just be putting myself back to a 92mm TB?
What are your IAC values? If they are maxed, make sure that the plunger is not stuck inside the IAC pathway. I had this problem on one "ebay" throttle body.
Make sure the throttle blade is not "hung" up on anything inside the bore. Move it around and make sure it works freely when the return spring brings it back to rest.
Obviously make sure the idle spring is fully released as well. So you dont modify your idle in any way besides the IAC motor.
Make sure the throttle blade is not "hung" up on anything inside the bore. Move it around and make sure it works freely when the return spring brings it back to rest.
Obviously make sure the idle spring is fully released as well. So you dont modify your idle in any way besides the IAC motor.
Thread Starter
Joined: Jan 2011
Posts: 1,921
Likes: 80
From: North Houston
What are your IAC values? If they are maxed, make sure that the plunger is not stuck inside the IAC pathway. I had this problem on one "ebay" throttle body.
Make sure the throttle blade is not "hung" up on anything inside the bore. Move it around and make sure it works freely when the return spring brings it back to rest.
Obviously make sure the idle spring is fully released as well. So you dont modify your idle in any way besides the IAC motor.
Make sure the throttle blade is not "hung" up on anything inside the bore. Move it around and make sure it works freely when the return spring brings it back to rest.
Obviously make sure the idle spring is fully released as well. So you dont modify your idle in any way besides the IAC motor.
What did you end up doing with your throttle body?
Thread Starter
Joined: Jan 2011
Posts: 1,921
Likes: 80
From: North Houston
What are your IAC values? If they are maxed, make sure that the plunger is not stuck inside the IAC pathway. I had this problem on one "ebay" throttle body.
Make sure the throttle blade is not "hung" up on anything inside the bore. Move it around and make sure it works freely when the return spring brings it back to rest.
Obviously make sure the idle spring is fully released as well. So you dont modify your idle in any way besides the IAC motor.
Make sure the throttle blade is not "hung" up on anything inside the bore. Move it around and make sure it works freely when the return spring brings it back to rest.
Obviously make sure the idle spring is fully released as well. So you dont modify your idle in any way besides the IAC motor.
