Category: Automotive

This article is for anyone who wants to replace the Engine Control Module (ECM, from now on) of their Toyota model with a used ECM, and the immobilizer system of the car (IMMO, from now on) is enabled.   NOTE:…

While this article goes to the 2001-2005 Toyota Rav4 models, it also applies to other Toyota models and to Rav4 models of other years of manufacture too, and even other car makes.   In the 2001-2005 Toyota Rav4 models, the…

I will start by saying, “Don’t let this deceivingly small size jump starter fool you”. New times have come, and new technology has arrived, and when it comes to the automotive industry, it does not cease to surprise us with…

This article was made because we have had customers who ordered a performance chip for their 1993, 1994, or 1995 BMW 325i/525i, and after installing the chip, they have accidentally touched the positive terminal of the car battery with the…

The immobilizer system, also known just 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…

This is how a simple situation was causing a car to completely stall at intermittent times with no apparent cause. This could happen to any car, though actual technology has already corrected this bug in engine computers. This is just…

When you replace your 2001, 2002, or 2003 Toyota RAV4 ECM (engine computer or ECU) with a used or recycled unit, if your vehicle is equipped with an immobilizer system, which is an anti-theft security system, you must reprogram the…

When working with immobilizer EEPROMs, sometimes the ideal way of programming the EEPROM is by doing it while it is in the circuit, as removing it, programming, and resoldering it back to the circuit adds a bit more effort and…

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. There could be many different factors causing this situation with your car, but many times this hesitation…

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 a simple procedure that consists of removing (desoldering) the stock chip, soldering…

When installing a performance chip in cars that use an ignition distributor, since the chip program is based on stock settings, it is required that the ignition distributor be at the stock ignition advance setting. Many times, it happens that…

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…

For installing a performance chip on your 1989-1994 Suzuki Swift GT/GTi ECU, just follow these instructions: Start out by locating the engine computer in your car. It is located under the driver’s side lower dash panel. You will need to…

To install a performance chip on a VW Jetta, Golf, or Passat model ECM from around 1995, first locate and uninstall the ECU from your car. The location of the ECM in most models is in the engine compartment, below…

Here is the location in the vehicle for most Honda Civic/CRX ecus. Most of the time, it is in the location pictured below. This happens to be true for the Civic models, while Accord models have it at the bottom…

We have often been asked for an EWS delete chip. That is, a chip that boosts the horsepower of their 1995 325i and deletes the EWS protection at the same time.   About the EWS   EWS is an anti-theft…

This article was made as a companion for the Toyota Corolla Immobilizer Reset Service we offer for the 2005-2007 Toyota Corolla, but it could also be helpful for you if you own the same model and recently replaced the ECM…

Did you install a performance chip in a Honda P28 ECM, and it is not working? Having problems? This situation is more common than you think, as many people choose to install a chip by themselves, even if they have…

Many performance enthusiasts must have heard or read about dual chips. Dual chips are chips whose memory capacity doubles the memory capacity of the original chip, so two different, same-size programs can be written inside the new chip, and it…

This document is about installing a performance chip on a 1993 – 1995 BMW 325i or 525i ECU (Motronic DME).   E36 Model   First of all, you will need to locate the DME and uninstall it from the car.…

While this covers installing a chip on the USDM version (US Domestic Market) Honda P28 ECM, the procedure is the same for almost all 1992-1995 (OBD-I) Civic and Integra ECMs. The circuits of all of them are based on the…

What is it? The Honda VTEC system is a dynamic valve timing adjustment, mounted on the engine head. It dynamically adjusts the exhaust valves’ timing by means of oil pressure. This oil pressure is controlled at the same time by…

  What are those infamous IAT resistor mods and performance modules, and how do they compare with real EPROM performance chips? Need a guide to try it out by yourself? Find out here… Some background The ECM can do such…

Racing or performance chips: What are they?       EPROM Tuning Chips The chips referred to when talking about performance chips are EPROM memory chips or Flash EPROM memory chips which contain a program for running the engine (inside…

Recently, we have seen a new racing performance scam: the “regulator performance chip”. What is this new type of “performance part”? I have read some auctions and sales pages listing a “Performance Module” which is nothing more than a voltage…

Have you ever wondered what the Octane Rating of Gasoline is? Every time we go to a gas pump to fill our car’s tank, we always have the choice of what octane rating we wish to put in. More than…

The following process will cover the DOHC engine of the 1993-1995 Honda Prelude (OBD-I) 1 – With the engine cold, remove the upper timing belt cover, the valve cover, the spark plugs, and the distributor cap. Exhaust and intake valves…