Hp tuners closed loop enable

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Mar 12, 2010 · The delay time is based upon your coolant temperature. Usually the warmer the coolant, the less of a delay time will be needed to enter into closed loop. Coolant Temp-The coolant MUST reach this temperature IN ORDER to go into closed loop mode. This temperature must be met, regardless if the delay time above has passed. Power Enrich PE Enable ... I'm convinced its either staying in closed loop to long or something in the closed loop options is effecting it in open loop. STFT's are disabled in open loop. Attached is my tune. It is currently Open Loop only with STFT's disabled. I've disabled the closed loop by changing the closed loop enable settings to 281 degrees to enable closed loop. And particularly under closed loop conditions once we re enable our closed loop control, that's going to be there to pick up any pieces. So we've dealt with our steady state tuning there, the other aspect though is we want to also look at our wide open throttle areas. So that's out in the 95 to 100 kPa zones. How to use HP Tuners to determine open loop fault. 0:24 add a channel called fuel system status channel 1 or channel 2 1:09 Modifications that cause this pro... Not sure what the code is because i dont have an OBD1 scanner and it seems the "scanner" is built into the software in the HP tuner. For the latest and greatest info i hit youtube, here on LS1/LT1.com and a few others and saw JJ's old post "Free PC scan utility for the 94 and 95 LT1"(on el caminocentral). i also found these (below) for ... Coolant Temp- The coolant MUST reach this temperature IN ORDER to go into closed loop mode. This temperature must be met, regardless if the delay time above has passed. In order to force your tune into Open Loop you would set this temperature at an unattainable number. Power Enrich PE Enable, Delay Vs. Boost enrichment also triggers open loop fuelling. The ECM will use the richest of the PE table and the Boost Enrich table values when fuelling. The new Boost Fuel Cut feature will cut fuel to all cylinders whenever boost is above the enable MAP value. There is also an enable/disable option for this feature. Sep 25, 2019 · This is necessary for you to do open loop tuning. Step 4. You will need to actually disable closed loop tuning and for this you need to go under your O2 sensor tab in the tuning software and find the "delay" table for entering closed loop. This tells the computer how long to wait after you start the car before entering closed loop. Closed Loop = using O2 sensor feedback to allow the ECM (PCM) to correct fueling using trims Open loop = ignoring O2 sensors and relying on the VE table to determine fueling MAF less (Speed Density) = ignoring (removing) the MAF from the ECM (PCM) and using the VE table So you can have a mixture of: Closed loop + MAF (stock type config) Knowing what open and closed loop is, how it works, and what sensors it uses is the first step to understanding fuel trims. But how does closed and open loop use fuel trims? Let’s start with what both sets of fuel trims are first. The short-term fuel trim (STFT) refers to immediate changes in fuel occurring several times per second. They can't go below that AFAIK. I'm not sure if VE table can push them lower than that, but I don't think so. My particular setup (EFI Live COS3) is semi closed loop. Wherever I command an equivalent ratio of 1, it's in closed loop, any other value is open loop and looks to the VE table for guidance. HP Tuners, the home of VCM Suite and the MPVI since 2003. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you’ll ever need for your modern OBDII vehicle. This morning it was about 50*, and I had adjusted the closed loop enable temp up to 90* trying to figure out what was causing a hesitation upon cold start. When I pulled out of my driveway, after idling for about 1 minute, it went waaay lean. 16-18:1 and wouldn't come down until the temp gage came off the peg. May 29, 2019 · We are looking at the often confused topic of Open and Closed Loop and why we tune in Open Loop. We will also look at how Closed Loop works with the Short Te... How to use HP Tuners to determine open loop fault. 0:24 add a channel called fuel system status channel 1 or channel 2 1:09 Modifications that cause this pro... Closed Loop = using O2 sensor feedback to allow the ECM (PCM) to correct fueling using trims Open loop = ignoring O2 sensors and relying on the VE table to determine fueling MAF less (Speed Density) = ignoring (removing) the MAF from the ECM (PCM) and using the VE table So you can have a mixture of: Closed loop + MAF (stock type config) Apr 09, 2007 · In the VCM Editor>Edit>Engine Diagnostics>General>MAF Sensor Fail Frequency = 0. This will set a P0103 code and turn on the SES light. Ensure that the P0103 DTC is enabled and you are seeing P0103 in the DTC list. Don’t worry about the DTC at this time. And particularly under closed loop conditions once we re enable our closed loop control, that's going to be there to pick up any pieces. So we've dealt with our steady state tuning there, the other aspect though is we want to also look at our wide open throttle areas. So that's out in the 95 to 100 kPa zones. Mar 12, 2010 · The delay time is based upon your coolant temperature. Usually the warmer the coolant, the less of a delay time will be needed to enter into closed loop. Coolant Temp-The coolant MUST reach this temperature IN ORDER to go into closed loop mode. This temperature must be met, regardless if the delay time above has passed. Power Enrich PE Enable ... This short video will show you how to get your fuel trims under control when they are off more than 23% using HP Tuners 3.x software. 0:20 LTFT+STFT Math 0:3... While this is a possibility, most tuners can tune the stock fuel map to be so close to accurate, that they only allow closed loop o2 to modify at max 10% of the fuel map. Also, if the user is worried about the o2 sensor going bad, and giving false readings, I often encourage them to just change out the o2 sensor every 3-5 years just as a ... Aug 17, 2018 · Open Loop - Fault is when both upstream oxygen or A/F sensors on a two bank vehicle have a fault. This could be caused by two bad upstream O2 sensors or both banks can be extremely rich or extremely lean. On a single bank vehicle Open - Loop Fault occurs when the upstream sensor has a fault. Sep 25, 2019 · This is necessary for you to do open loop tuning. Step 4. You will need to actually disable closed loop tuning and for this you need to go under your O2 sensor tab in the tuning software and find the "delay" table for entering closed loop. This tells the computer how long to wait after you start the car before entering closed loop. Nov 28, 2008 · IDLE TUNING The following is a collection of idle tuning notes, tips ‘n tricks and How-2’s for idle tuning a big cam (or any cam for that matter) that I used when dialing in my 248/254, .615"/.622", 112 LSA using HP Tuners. If you choose to follow any of these How-2’s, please do so at your own risk and do one change at a time…in other words, HP Tuners, the home of VCM Suite and the MPVI since 2003. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you’ll ever need for your modern OBDII vehicle. This short video will show you how to get your fuel trims under control when they are off more than 23% using HP Tuners 3.x software. 0:20 LTFT+STFT Math 0:3... Coolant Temp- The coolant MUST reach this temperature IN ORDER to go into closed loop mode. This temperature must be met, regardless if the delay time above has passed. In order to force your tune into Open Loop you would set this temperature at an unattainable number. Power Enrich PE Enable, Delay Vs. Sep 11, 2019 · Part 1 of the mini-series, How to Do a Complete Open Loop VE Tune Using HPTuners, is an advanced tutorial from beginning to end, demonstrating how to tune your naturally aspirated car in open loop ... They can't go below that AFAIK. I'm not sure if VE table can push them lower than that, but I don't think so. My particular setup (EFI Live COS3) is semi closed loop. Wherever I command an equivalent ratio of 1, it's in closed loop, any other value is open loop and looks to the VE table for guidance. Jun 15, 2010 · Right now I have it set to run open loop all the time and it runs good and the AF is safe based off of data logging, it idles better, but is still set to at 14.7. Is there a way to run in open loop at idle and go back to closed loop during regular cruising? Or is there a way to get it to run at 16:1 afr at idle and 14:7 for normal driving? Dec 12, 2012 · Open Loop and Closed Loop are two terms used to describe the fueling mode the computer is in. In closed loop fueling, the computer takes readings from the oxygen sensors which read +/- of 14.64 AFR (Stoich) and makes corrections for it. If your car is idling @ 13.5 AFR, the 02s can see this, and will know to pull out enough fuel to get back to ... This short video will show you how to get your fuel trims under control when they are off more than 23% using HP Tuners 3.x software. 0:20 LTFT+STFT Math 0:3... Oct 16, 2019 · 2nd change, Closed Loop Enable... : set the temp so high that the engine will never enable closed loop. one change at a time you can see my settings. The last difference doesn't count, as I played with my fan temperatures, which is not related to VE tuning. And particularly under closed loop conditions once we re enable our closed loop control, that's going to be there to pick up any pieces. So we've dealt with our steady state tuning there, the other aspect though is we want to also look at our wide open throttle areas. So that's out in the 95 to 100 kPa zones. Closed Loop = using O2 sensor feedback to allow the ECM (PCM) to correct fueling using trims Open loop = ignoring O2 sensors and relying on the VE table to determine fueling MAF less (Speed Density) = ignoring (removing) the MAF from the ECM (PCM) and using the VE table So you can have a mixture of: Closed loop + MAF (stock type config) one thing you can do is in HP tuners go to open closed loop tab, and select O2 rich/lean vs airflow. these represent the stoich (14.7) O2 crossover values. a stock GTO tune is 451mv. if you add to this number it will richen the mixture while still keeping the same mv output as before, e.g. Sep 25, 2019 · This is necessary for you to do open loop tuning. Step 4. You will need to actually disable closed loop tuning and for this you need to go under your O2 sensor tab in the tuning software and find the "delay" table for entering closed loop. This tells the computer how long to wait after you start the car before entering closed loop. Then set All Closed Loop Enable Temp cells to 306°F & Closed Loop 02 Ready ECT to 493°F this will ensure you go into open loop.