For the last few months I’ve been planning and working towards turbo-charging my daily driver, a 1996 Toyota RAV4. Great car, but a bit slow and gutless, hence the upgrade.
Step one is to get a tunable ECU in and running. I have gone for a DIYAutotune Microsquirt DIYPNP module, which is actually a great little unit. Now that I’m getting close to having the ECU in and running, I need to be able to tune it, which requires monitoring the Air/Fuel ratios using a wideband O2 sensor. My car, as standard, only has a narrowband which just isn’t good enough. So here’s how to fit an Innovative LC-1 wideband O2 sensor to a 1996 Toyota RAV4.