Ve tuning

[FstdodgeKY]

https://forum.hptuners.com/showthrea...-spark-advance

Read the above post very good information.

[Hemituna]

Hemituna just to clarify: The fueling strategy in these ECU's command stoich (Eq of 1) only until an FA enrichment is commanded from the PE table?

Correct

They (usually) run closed loop (lambda 1.00) until PE (goes to open loop and adds specified extra fuel from PE table)

We are talking about the non-hellcat/trackhawk/demon OS's

[FstdodgeKY]

So after getting my ve table dialed in and getting control of the knock I've tried to add some timing into motor. Issue now is the pcm is only using PT timing table and dosent switch to WOT table?? Is this because I have o2 off and not using PE? I've confirmed this by rescaling my PT table and now it's getting the extra timing. Am I stuck with only having one timing table now??

[spoolboy]

If you adjusted WOT to get rid of PE, makes sense you also won't get WOT spark.

[FstdodgeKY]

But I'm curious as to why tho. We zeroed out the PE table was all and just used ve for all the fueling.

[tbrtuning]

I think that's why... If you want two timing tables try adding minimal in PE and put it back but you don't necessarily have as much benefit for two tables now.

The two timing tables are nice if taking advantage of the engine being able to run more timing when running richer but you're feeding it fuel from VE table so should be pretty consistent on timing no matter what the throttle.

[FstdodgeKY]

Im ok with only having the one table, just wanted to make sure that what i was seeing was correct and only using one would be ok.