Subaru Enthusiasts Car Club of the Sierras - View Single Post

Dean · 2009-07-20, 10:21 AM

If you have to reset your ECU to make your car run in some particular manner, well, better, whatever, it says something you have done has confused the sensors and thus the ECU and it's learning process.

The stock reset parameters are very safe... Something you have done has made your ECU unable to compensate or learn correctly. That IMHO is a bad position to be in as the ECU is what protects your engine.

If you do not believe us, go log. Even without a wide band, you can get some real good data about how your car is running. If your multiplier is down and fuel trims are all over the place, that would explain what is going on.

Just a suggestion. YMMV...

2009-07-20, 10:21 AM	#19
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	If you have to reset your ECU to make your car run in some particular manner, well, better, whatever, it says something you have done has confused the sensors and thus the ECU and it's learning process. The stock reset parameters are very safe... Something you have done has made your ECU unable to compensate or learn correctly. That IMHO is a bad position to be in as the ECU is what protects your engine. If you do not believe us, go log. Even without a wide band, you can get some real good data about how your car is running. If your multiplier is down and fuel trims are all over the place, that would explain what is going on. Just a suggestion. YMMV... __________________ I am a Commodore PET --- Now get off my lawn you kids...