Immobiliser information.

[packa]

Hi first time post. Just wanted to post some handy information that I learned by trial and error.
Son bought a fairly unroadworthy 2001 lancer to get on the road, but as we started to tick jobs off the list of repairs he lost the key and as I learned the hard way, it was game over for that car. I then decided to buy a near perfect unregistered 2002 Mirage and make one from the two. Anyway, I found that tricking the computer didn't work for me to get around the immobiliser. I was curious to know just what is needed to fire the motor up and it turns out all you need is a key by the sensor and a paired immobiliser box found just above where your left knee would be. So, the ECU and key sensor can stay the same. I am going to try modify the box some day.

On another note the Lancer had a Tacho dash fitted but the speedo and Tacho didn't work, turned out to be just a track with a hair line break. easy fixed. I pulled apart the two units and swapped the speedos so the KM's stayed the same, And yes the KM's are recorded in the speedo unit, not the ECU.

Cheers.

 

[ARC]

Probably one thing to know first, was the Lancer a 1.8 or 1.5?

 

[packa]

Both 1.5. Manual. I have no idea the model of the coupe, but other than the dash it was all standard.

 

[ARC]

The dash doesn’t matter, engine does.
1.8 gear won’t work with a 1.5 gear. Had to ask.

So long as your key matches the immobilizer it should work.
But I've seen quite a few people replace the ecu, immobilizer, keys, key barrel and key locks all in one go. Depends how thorough you want to be.

There’s no tricking the ecu, you can program out the immobilizer with the 1.8’s if you know how and have the equipment. But 1.5’s I’m not so sure of, I actually haven’t seen it done to a 1.5 yet.