VPC Problem?

[88supraTT]

not sure if this is vpc related or not but here is a link.
http://www.supramania.com/forums/showthread.php?t=76336&page=2

read page 2 it lists my problem.
any help would be great

 

[88supraTT]

Bump still having problems. replaced tps and checked wiring. still not working right.

 

[figgie]

Idle Air Control valve. Seems like it is not working hence the low idle. Have you tested the IACV?

 

[88supraTT]

works fine check for vac leaks and there were none. wideband is show 9.8 and i can't get it any leaner.

 

[figgie]

88SupraTT...

well you are running pig rich at 9.8.

With that said. Have you disconnected the VPC from the system and see what happens at that point?

Are you sure the VPC is setup correctly (correct dip switches engaged etc).

 

[88supraTT]

88SupraTT...

well you are running pig rich at 9.8.

With that said. Have you disconnected the VPC from the system and see what happens at that point?

Are you sure the VPC is setup correctly (correct dip switches engaged etc).

well I think i've got it narrowed down I think I may have a slight vaccum leak but my guage shows 25inches which I thought was normal. So I took it for a drive,didn't want to but, once I got to about 10 inches of vaccum it seemed to smooth out then when went to give it a little more about 4psi it went and pulled right to rev line and was 12.1 a/f so i think i have a vaccum leak someplace. how long is it suppose to take to let the vpc learn itself i also took out my gcc and installed a safc2?

 

[88supraTT]

Figured out problem i was running too cold of spark plug. Put in new hotter plug car runs great but just breaks up a little bit when first hitting acclerator.But i think the vpc still needs to learn a little bit.