OK so I'm fairly new to GN's and have an 87 I'm trying to get running right before adding any uprades. I've read on here you need a scanmaster before you do anything, so got a scanmaster 2.1 and here are my readings.
Also some numbers kept jumping around.
02 milivolts started at 450 on a cold start up and dropped to 260-350 after warm up. I know I have the famous cracked header and guess that could lead to this #??
AF - 04
LB 34-39
BAT - 13.4
IN- 128
BL - 150
CLT - 190 - my fan comes on right a 190 still
ATS - 120
R - 650 - 700
IAC - .42 idle and 4.44 wot
IAC - 73
CC - 192
I started off trying to adjust the IAC to then set my TPS, I could get my IAC down to 39 but no lower the number starts to rise even turning the screw the same direction. Also everytime the fan kicked on the IAC number jumber up 20 or more. Lastly no matter what I adjust it on a restart its back to 73. Could I have a bad IAC?
I thought I check for vacuum leaks and havn't found any, I even but a vacuum gauge on and pull good vacuum.
Any help would be great!
Thanks
Also some numbers kept jumping around.
02 milivolts started at 450 on a cold start up and dropped to 260-350 after warm up. I know I have the famous cracked header and guess that could lead to this #??
AF - 04
LB 34-39
BAT - 13.4
IN- 128
BL - 150
CLT - 190 - my fan comes on right a 190 still
ATS - 120
R - 650 - 700
IAC - .42 idle and 4.44 wot
IAC - 73
CC - 192
I started off trying to adjust the IAC to then set my TPS, I could get my IAC down to 39 but no lower the number starts to rise even turning the screw the same direction. Also everytime the fan kicked on the IAC number jumber up 20 or more. Lastly no matter what I adjust it on a restart its back to 73. Could I have a bad IAC?
I thought I check for vacuum leaks and havn't found any, I even but a vacuum gauge on and pull good vacuum.
Any help would be great!
Thanks