Idle RPM whilst coasting

[jfpilla]

SSbaby, Did you lower the Idle Airfow values and Idle Airflow Parked at the same time? The reason I ask, is that 60C is a high IAT. Is it that hot there? If your IAT is not exceeding 60C the change in IAParked might not have done anything. Also, lowering IAParked should increase the aiflow.

Yes, I changed the values at the same time.

Trust me when I say that by doing the changes described it also eliminated the annoying symptom of an escalation in revs before settling to the normal idle speed.

I thought the idle air values corresponded to ETC not IAT temperatures? :? In which case my ETC temps would approach 80C+ and would therefore be influenced by the changes I made.

PS Sorry to hijack your thread LS1 Cobra.

I trust you. The reason I ask is that you are not sure what the affect of each change is, when you change both together. The idle airflow "parked" table is based on IAT. Idle airflow is ECT.

[SSbaby]

I trust you. The reason I ask is that you are not sure what the affect of each change is, when you change both together. The idle airflow "parked" table is based on IAT. Idle airflow is ECT.

Ah-ha... I wasn't aware of that! No wonder I had to fiddle around with it a few times - I did change IAC values from -8C upwards as well, although I assumed that the 60C+ readings were of most relevance in this topic hence why I quoted for IAC & IAC Parked temps > 60C... I must have just 'fluked' it this time!

But it idles a lot better than it did. Thanks for the heads up, jfpilla! 8)