Category: Automotive

The immobilizer system, also known as “immo”, is an automotive security system integrated into many vehicles since the 1980s, and it has become more sophisticated over the years. It is installed in some 2001, 2002, and 2003 Toyota RAV4 cars,…

This is how a simple situation caused a car to stall completely at random times with no apparent cause. This could happen to any car, though engine computers have already corrected this bug. This is just an example of how…

When you replace your 2001, 2002, or 2003 Toyota RAV4 ECM (engine computer or ECU) with a used or recycled unit, you must reprogram the ECM to work with your existing keys if your vehicle has an immobilizer system (an…

When working with immobilizer EEPROMs, sometimes the ideal way for us to program the EEPROM is to do it while it is in the circuit, as removing it, programming it, and resoldering it back to the circuit adds a bit…

If you own a Toyota Rav4 from 2001 through 2005 with automatic transmission, and you are experiencing problems with the transmission, like harsh shifting, loss of power, launching on third gear and/or slamming into gear when it is put in…

Sometimes when we are cruising in our cars and decide to accelerate either slightly or harder, we experience an annoying hesitation or stalling. Many factors can cause this, but often it’s something we can fix ourselves: a dirty MAF sensor.…

This covers installing a chip in the 1992-1995 Honda JDM ECUs: “P72”, “P30”, and “P08”. Installing a performance chip on 1992-1995 Honda JDM computers uses the same method as described in other posts on this website about non-JDM ECUs. You…

This is for the following Honda ECM computers: PM6, PW0, PR3 (OBD-0), and PR4 (OBD-0) Installing a performance chip in a 1988-1991 Honda Civic/CRX is simple: remove (desolder) the stock chip, solder a 28-pin socket in its place, and insert…

This applies to the following Honda ECM computers: P0A, P0B, P0C, P0H (OBD-I), P11, P12, P13, and P14 Installing a performance chip on the 1993-1995 Honda Prelude and 1994-1995  Honda Accord is a simple procedure that consists of removing the…

When installing a performance chip in cars that use an ignition distributor, the chip program is based on stock settings, so the ignition distributor must be set to the stock ignition advance setting.   Often, car owners have manually advanced…