LPG power??

 

what about when at WOT?

 

While in open loop trims are not calculated, but middle trim is used to calculate IPW.

 

LPG does not provide more power that pump gas (actually about 3% less), but is much cheaper here :-).

It is not so easy to get anything for cars here - everything is horribly expensive, like twice or 3 times the price in US :-((((( That´s why I will order WB in US as well...

Any experience with this? http://www.motorsportsinnovations.co...gauge_kits.htm

 

then what does the ECU use to make AFR's richer if there is a lean spot in the tune?

 

the ECU doesn't know there is a lean spot in the tune...

at WOT anyways

before my "disable LTFT from affecting WOT" the ECU would use the LTFT High as a correction for running WOT... But I figured that was bad/dangerous so I changed that behaviour with that patch...

 

ok, but doesnt the ECU read the O2 sensor, and it would see that the AFR is 12 when it should be richer, so next run the ECU inputs a trim to increase fuel there?

or am I wrong?

 

your wrong

The O2 sensors are narrowband.

This means they are only good for reading above or below 14.7:1. Nothing else.

ie NB's will say "your above 14.7", or "your below 14.7", they dont tell you by how much...

 

damn. then i dont get this.

when i reset my ECU, it resets my fuel trims. and when i do a WOT run, my AFR's are around 12's until 6k rpms, but then after a few WOT runs, my AFR's are at low 11's all the way til redline.

 

have you done my patch:
https://www.evolutionm.net/forums/ev...t-fueling.html

Probably not, so that means your LTFT_High is affecting your WOT pulls.

But because of how the NB's work its pretty useless, hence why I disable it...

 

not that i know of.

What would your patch change about this?

 

read the thread...

 

ok, thanks for the info

 

Apologies then... I didn't know a ton about the technology, but I was always under the impression that it provided a boost in fuel economy and power in diesel engines (and that people on pump gas didn't run it because large turbo-diesels had more room for a big propane tank)

 

No no, it is widely used in petrol engines here in Europe due to low cost. But however I will get the WB to be sure it works right, even though I see only very occasional 1-2 knock sum at WOT.