When the mixture in your car oxygen and fuel is too lean or too rich the engine becomes less efficient. End users can tweak the tune through this hand held controller in the pro tuning option.
Beginning Fitech 2 Barrel International Full Size Jeep
Fitech o2 sensor problems. If the o 2 sensor heater circuits negative wire goes directly to ground look for a short to power problem. Our folks have several options from basic to completely trick. Fitech recommends using a replacement sensor from a 2001 2004 vw beetle upstream o2 sensor. Remove the relay and retest the circuit. Fitech idle afr fluctuation problem duration. Fitech fuel injection has been supplying automotive products specifically fuel injection products since 2012.
This is a forum where users share their knowledge and information about maintaining and tuning the ready to run fitech fuel injection kits to squeeze the best performance and economy out of their engines. 5 symptoms of a bad oxygen sensor and o2 sensor is failing duration. Usually the heater circuit in this case is controlled by a relay. Fitech offers these oxygen sensor bungs that allow the use of wide band o2 sensors but dont require welding. O2 oxygen sensor. Upstream is located before the catalytic converter.
If the light comes on again locate the short to voltage in the wiring harness with the relay removed. From there the self learning ecu keeps the airfuel in trim. We reach almost all horsepower endeavors. Top 5 auto repairs 25692 views. Fitech efi tuning forum electronic fuel injection tuning for automotive applications. Fitech currently uses a bosch lsu 42 oxygen sensor also referred to as an o2 sensor.
If you have noticed that your vehicle is running irregularly or that the engine sounds rough there might be a problem with your oxygen sensor. We are leading providers of fuel systems and ultra ram sbc efi.
Gallery of Fitech O2 Sensor Problems
