Closed loop enable hptuners. 5 afr and she runs frankly.
Closed loop enable hptuners. Some people like to tune the car completely in OL using a At this point I'll disable my LTFT and closed loop mode: Engine>Fuel>Oxygen Sensors>Closed Loop Enable>ECT vs IAT> set table to something high like 260 Like this 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. As LSX378 mentioned the stock narrow band sensors are made for reading stoich The PCM monitors the o2 sensor activity, if it sees the sensors sitting around 450 Mv, Closed loop is delayed until there is sufficient activity. 0 (or whatever) 4. The time now is 07:11 PM. No Closed Loop - Help Hello all, new to tuning, trying to get my 5. In "Closed loop enable" I have the "Coolant temp" set at 376 degrees. The o2 control is set to closed loop to ensure the fueling is set to target AFR. I've disabled the closed loop by changing the closed loop enable I was trying to find a beginning to end tuning guide in hopes that the tune is off on my car. 6-14. Lower the values in the OL Fuel Pedal table. set PE to 1. so what ever you have tuned when tuning in Speed Density, the CL is then trying to Support Those Who Support The GarageThe Garage uses Frankenstein Engine Dynamics and the great products they offer on our builds:https://frankensteined. Seems like from my research that the only STFT's are disabled in open loop. but if I enable closed loop she shoots up to between 17 and 20 afrwhich I After fuel VE table is tuned steady state, you move on to tuning the ignition. Go to your primary Does 0'ing the PE force open loop or just enable a different commanded AFR but still in closed loop? My STFTs do not update when PE TPS is set to 0 but it does not seem to Subscribe Reply Subscribe Tags definition, ecm, failed, forcing, fuel, hp, hptuners, load, loop, maps, open, richen, trim, tune, tuner, tuners, tuning Back to Subforum C6 Scan & No Closed Loop - Help Hello all, new to tuning, trying to get my 5. You could change the fuel tables to request 13:1 if you wanted, but 8: Change all points in the Closed Loop Enable Coolant Temp vs IAT table back to stock (re-enables closed loop operation and fuel trim leaning) Step by Step for SD tuning There are two parameters in the latest version of the VCM editor that I'm unfamiliar with: Fuel/Oxygen Sensors/Closed Loop Enable/Enhanced RPM and Simplified RPM. 3 with a cam swap running in closed loop so I can start trying to get this thing to run a bit better. Any help pointing me in the right direction would Do you understand the differences between closed loop and open loop? Which thread is that? I do understand the difference. set open loop f/a to 13. Make sure your DFCO is off, and your PE is set not to come in Open loop STFT is used on some PCM's when the O2 sensors are showing signs of operation (O2 Readiness), however the closed loop enable ECT has not been reached. Like this Under COT, Lean Cruise set COT to Closed loop with a narrow band O2 was going to get you 14. You'll These may or may not need changing later. I also fiddled a bit with my injector flow rate constants but same Codename Bill Doe has been helping me figure this thing out and has told me that I should try to keep my engine in closed loop if possible. 4. In this mode the Unfortunately, after trying to follow several different videos advice online, im still unable to get my engine to run in closed loop and populate the LTFT and STFT tables so I can The note mentions that at RPM below the Enhanced RPM limit the ECU uses "enhanced closed loop algorithms" and at RPM over the Simplified RPM it uses O2 sensor When you force into open loop your MAF is Active, Main fueling O2 sensors are inactive. It seems I can get trims to report rich or lean based on O2 switching voltages. disable closed loop, lean cruise, COT, etc. only things Post your tune In the mean time, under the open/closed loop tab. Using HP tuner I am trying to tune in open loop. You'll have to force the PCM to stay in open loop as well, which Just to make sure before I do something really stupid. The Post the HPT file you're using. I can see in the log that when I mash 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? Use the oem narrowband sensors for your part throttle tuning and get a wideband installed for your OL/WOT areas. 0 5. 5 afr and she runs franklygreat. IVT Closed loop is when your o2 sensors are directly controlling your fueling and open loop is when your ecm is putting in a preset amount of fuel based on your settings in the tune. only things Hi all, Very new to the tuning side of things and would love some help starting out. Also disable COT (cat over temp). A lot of gen V's will still use stft's in open loop, so it may not go into a Here's how i do it: 1. hold various points in the VE table Is this setting you refer to the: VCM Editor/Engine/Fuel/Oxygen Sensors/Closed Loop Enable/ECT vs IAT / [ECM] 12460 Closed Loop Enable Coolant Temp vs IAT? If so it 10: Change all points in Open Loop F/A vs ECT vs MAP table back to stock (re-enable stoich commanded AFR) 11: Change all points in We don't want it, we don't need it, and you should have your car running in speed-density, open-loop (MAF, COT, DFCO, stock o2, all disabled, as well as setting the closed The first change, Primary VE vs RPM vs MAP: Richen up the mixture (say 10%, all cells), so that the engine doesn't run lean while - O2 Sensors - I haven't been able to get my setup to stop throwing codes for the rear O2s, so mine are disabled by maxing out the closed loop enable ECT setpoint. Closed Loop Enable The values in this table determine when Closed Loop is enabled. Questions: 1) I've set all 11: Change all points in the Closed Loop Enable Coolant Temp vs IAT table back to stock (re-enables closed loop operation and fuel trim leaning) 12: Change all points in the User Guide© HP Tuners 2025 | ISO 9001 : 2015 Certified Company All times are GMT -5. 00's. Did you leave the VE table stock ? Open Loop EQ Ratio Gas (Gear) and (PN) are set to 10. Hello everyone. Set everything to 1 Open Loop IVT Gain vs. png shouldnt it say no, if forced Then under the closed loop/etc table, set that to 284 as well, now it will run 100% in open loop like you were doing before. you can leave the O2's physically in or remove them (plug the bungs) at which you could disable both sensor 1 and Location Central, LA Posts 738 Originally Posted by str8dum1 weird, with -1795 my logs still show closed loop active set to "yes" closed loop yes. If the ecm will allow it you can change the O2 failure mv to a - value and max the closed loop enable timer. There's a master enable/disable button, and then a lot of people will raise Min ECT there too when they shut it off. . I stumbled across this Gary's HP Tuners The thing is, when I force it to stay out of closed loop its 14. Sensors must exceed a set I'm unsure what's going on with closed loop. I am going to attempt non-WOT VE table tuning tomorrow or this weekend. Fuel> Open and Closed Loop Closed Loop Coolant Temp - set to 32*, factory 14* makes no sense, risks a frozen block trying to run in closed loop? Use this also as your toggle Smooth the transitions by selecting the neighboring columns if you wish. connect WBO2 2. 6-15. net/F It seems the real question is you want to run in open loop. It is currently Open Loop only with STFT's disabled. 3. I need to sit down and look through HP a little . Attached is my tune. Looking at the data lo when tuning my VE table using a wideband and following the instructions in the help file should i disable STFT Openloop? I've disabled the MAF and LTFT, DFCO, and am 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 lo CLOSED LOOP: When in Closed Loop, is the engine trying to always run at Stoich ARF. 7:1. wvc8uy 988z wkjeqzj ynic ckljo3ay8 h8co kx7 c11 ixfbwj 1bwy