Stalling issues

[tylerside]

Hey all,

87 GN wants to stall, worse when cold. Stutters, then either surges back up, or stalls. Readings from Scanmaster as follows when warm. Checked out Vortex Buick, not sure if I am missing something. Often if you shut off after only running for a minute, hard to restart.

Warm in Park:
o2 - 420 - 520 AF 04-05 (03 ignition on, not started) L8 - 30

bat - 13.5 Int - 125 - 135 BL - 147 steady Clt - 173 Ats - 110

Rpm - 800 - 825 tps - .44 IAC 13


Warm in gear at stop:

o2 - 450 - 600 AF - 06 L8 - 45 Bat 13.1 Int 128 BL - 138 ATS - 115

Rpm 775 - 800 Tps - .44 IAC 44


Thanks, Tyler

 

[berserker6]

numbers look good to me. but im still learning myself. BL at idle is a tad high in park. telling you its a little lean and adding fuel. maybe a leak? just incase youre not familiar with this site, the info is great http://www.vortexbuicks-etc.com/

 

[83ttypecooled]

Hi,
I didn't see IAC in there. What's it doing?