ok ive done alot of searching, but cant seem to find exactly how to do this. From what ive read, i need to go into the %tps threshold vs rpm vs cool. temp. and 0 the idle blocks. What isnt specified is to do it in both low and high temp columns, or what? my tune shows 0 in the high temp column all the way down, but not the low temp. Maybe im misunderstanding, but wouldnt the whole column of 0's put you in PE mode all the time? Kinda lost right now?? And what exactly IS low vs high temp. here? Someone straighten me out plz.

 

nobody can help me out here?

 

High temp is something you will never see unless the the thing is about to burn down. Its something the factory did to try and help cool the engine off with lots of extra fuel in case of a problem. In any case if you get her that warm its going to pop a head gasket anyways most likely. Low temp is where you operate all the time.

 

so you're telling me i need to adjust the low temp column to adjust idle fueling? Also, while im on the topic, let me know if im correct in assuming you need to be at the specified tps% or higher at that given rpm to shift to pe fueling? Say I set 3000 rpm to like 30%, since its a blown engine,....i need to be above 30% to go to pe fueling or I could risk running lean if I see boost? This is where im going with this thread, probably should have cleared that up earlier.

 

Yup tps must be over the percentage you set at whatever rpm you're at to be in pe.

Thats why you set the idle rpm tps threshold to 0 because at idle you're at zero. Then you just go into the % enrichment vs rpm table and adjust it up or down at idle rpm depending on what it wants. There are other issues that may or may not show up from pe idle. I like to avoid it if at all possible.

For a blown engine I would go open loop with the tune and not look back, but thats just me.

 

yeah, what are the pros and cons? why would you prefer open loop tune?