Joseph E

Cool so it’s a safety measure I’ve seen the open and closed loop terms thrown around in the software so I’m glad I know what they mean now I appreciate the help and knowledge I’m glad I posted on the forums I’ve been met with some bad responses on the 3000gt forums before when I was a lot younger because I was pretty ambitious so I appreciate the kindness

Alright and that applies to anything that can run on a closed loop. so it’s basically a fuel trim table? My stock ecu had fuel and knock trim issues which was part of the reason I upgraded. I’m definitely gonna get a new wideband and set it up as a closed loop system seems exactly what I’m looking for

Good to know I will look into the link cambus lambda I’ve heard about it and will most likely go with that one and I’m not entirely sure what the closed loop lambda does I’ve just really dipped my toes into the water I got my car running pretty good but still not very adept with the program I have a lot more to learn

Yes it’s an older aem I’ve tried to calibrate it but couldn’t get it right I went off of the gauge it’s off by 2 linearly so I just tuned based off that it’s not a perfect setup I’m trying to still get it dialed in completely

So it does a weird little missfire at idle sometimes not all times but every time I let off the throttle it leans all the way out and the actual lambda is not as rich as it says my calibration is off by about 2 points this slight missfire is what lead me to believe it was because of a mechanical issue such as injectors or ingnition wires I’ve had problems with it missfiring before on the stock ecu but when I put in the link it got a lot better and pretty much went away I will replace the plug wires and Hopfully get new injectors soon as well it very well could be misfiring due to lack of ignition power or bad injectors

yeah here is the tune and ill go grab that log in a sec traditional map.pclr and here is the trigger scope logs i took a handful of them just to be safe so what i was thinking it was is my plug wires or maybe coils or ptu something to do with the mechanical spark but wanted to ask on here before i go get parts because maybe i messed something up and its tune related but anyways i appreciate the response and look forward to hearing back from you Trigger Scope Log 2023-07-26 2;16;06 pm.llg Trigger Scope Log 2023-07-26 2;16;27 pm.llg Trigger Scope Log 2023-07-26 2;16;36 pm.llg Trigger Scope Log 2023-07-26 2;16;53 pm.llg

i am pretty new to tuning learned how to do it on my car and have it tuned pretty well i am just concerned about my logging results as the engine rpm is shuttering on the log but the car doesnt seem to have any shutter in rpm in real time and runs pretty smooth was just hoping to get some insight the car is a 91 stealth tt at 15psi with a couple of mods plenty of fuel headroom afrs sit around 11:1 or lower the afrs on the logs are not accurate so dont worry about that appreciate any help thanks in advance the first log i took is 2nd and 3rd gear pull and the second log is a drive home so its a longer log upload for questions.llg drive home log.llg