
I'm thinking it may be the wideband or my installation. I take it the signal should not bounce around like I am seeing? Thanks very much for you responses. I do get this bouncing of the wideband AFR on the stock tune. The controller for the LC1 is mounted in the battery box of the car and the Wideband Wire fed back through the firewall. The LC1 is installed in place of the Narrowband O2 sensor (something the instructions specifically say you can do). The others are probably not WOT either (because throttle is less than 100%) but they are where the VCM drops the command to the PE value (12.7) and that is where I am having trouble determining whether the wideband is simply bouncing all over or I am getting good readings. The first is not WOT it is just in the higher RPM bands and goes to PE. These are the areas where the VCM goes open loop. I should have given you the frame numbers. Was your AFR also all over the place with the stock tune and stock air filter? That would explain a problem with your AFR sensor.Sorry. I reinstalled the original tune to see how it responds and it is about the same, although it is much richer when it goes to wide open throttle.Īny help is greatly appreciated!!! The way the sensor bounces around it is hard to tune without a significant number of readings which I dont get at WOT very easily. You can see when I go to wide open throttle, the wideband goes down around the command (12.7) but then it bounces around and eventually goes very, very rich when I let off the throttle. It looks like the Wideband readings lag significantly and bounce around too much, but I'm not sure if its the sensor or the actual AFR is bouncing around that much. I am having some trouble getting the Wideband AFR to track commanded AFR in PE. I have tuned the VE tables pretty well (I think) and am tuning the MAF table. I installed an LC1 wideband and also use the narrowband signal in place of bank 2 narrowband.
Binary editor wideband how to#
I decided to try and learn how to tune myself because I hope to make other mods in future. Replaced the CAI with a Blackwing and was told it would probably run rich.
