My understanding of Closed Loop vs Open Loop is that Closed Loop is used when the sensors are being monitored and adjustments are made based on the readings. Open loop is the opposite. Closed Loop is used up until a certain specified TPS reading where it switches to Open Loop. That is my current understanding summed up. My question is why at WOT would you want to be in Open Loop vs Closed Loop, when you are in WOT wouldn't you want adjustments to be made based on monitored values since it is more vital at WOT to be careful?
Would it be bad to keep the car in Closed Loop during WOT? Why or why not?
Also what is the easiest way to make adjustments to the Open Loop AFR? Fuel Trimming?
Closed Loop vs Open Loop
Re: Closed Loop vs Open Loop
That's how it's setup from the factory. With these ECUs that have a wideband I like retaining closed loop.
WOT Enrichment depicts the AFR.CMD. If you're not hitting that and you're a MAF vehicle you'll want to alter the MAF curve. If you're a speed density vehicle you'll want to edit the fuel maps.
WOT Enrichment depicts the AFR.CMD. If you're not hitting that and you're a MAF vehicle you'll want to alter the MAF curve. If you're a speed density vehicle you'll want to edit the fuel maps.
Re: Closed Loop vs Open Loop
Okay, thanks, I just wanted to make sure it wasn't cutting sensor reading for a reason.
Re: Closed Loop vs Open Loop
No problem