2G Bypassing the immobilizer

[AlphaVision]

Hello everyone.

I am installing a 6-bolt in my 2g NA Eclipse. So I got the engine, wiring harness and ECU all from a 1g DSM. The problem is that I have that immobilizer system in my 2g which won't work without the 2g ECU. So can anyone give me some advice?

So what are my options? IMO I have 2 major ones:

1. Bypass the immobilizer system somehow
2. Use a chip that "lies" the immobilizer
3. Can be both ECUs used? The old (2g) ECU will just be connected to the immobilizer system. (Does it check something else before sends an OK signal to the immobilizer)

I really need help on this one. Couldn't find any topics in the Internet

 

[93_tsi_fwd]

good luck!

you got a whole lot of head ache ahead of you.

you'll need a whole lots of fabricating.

EDIT: sorry, didnt know you have the euro version N/T.

 

[AlphaVision]

yeah it is a headache indeed with those euro N/T models. Almost no info in Internet

Probably it is not that much visible in my signature so I'll just post a passage from wikipedia:

"There was a unique version of the 2G Eclipse sold in some European countries. It used a normally-aspirated Mitsubishi 4G63 motor, similar to what was available in the 1G, unique sideview mirrors, and unique amber rear turn signals."

 

[rich3389]

I would imagine dropping a 6 bolt in that car would require the same work that people over here in the USA do to put 6 bolts in there 2g's.

 

[turboglenn]

What is the "immobilizer"?

 

[AlphaVision]

I would imagine dropping a 6 bolt in that car would require the same work that people over here in the USA do to put 6 bolts in there 2g's.

Well it is a little different in my case. In USA 6-bolt swaps are done keeping the 2g turbo ECU and wiring harness. My original ECU is slightly different than 2g turbo ECU as well as the wiring harnesses are different. I want to use 1g ECU and wiring harness because the engine will run smoother with its own ECU.

What is the "immobilizer"?

The immobilizer is a security feature that reads some code from the key so if you try starting the engine with a different key it won't work (or something like that).

 

[tsunari]

So is the immobilizer some sort of euro only thing? I do not know of any USDM eclipses that came with such a feature. Do you have some sort of RF tag or chip in your ignition key?

 

[AlphaVision]

I am not sure, but it is quite possible to be euro only feature. I think it is something like a chip. You can see the Immobilizer diagram here in my service manual, page 56.
RapidShare: Easy Filehosting

And here is a picture of the engine already inside the car (not me on the picture)

You must be logged in to view this image or video.

 

[rich3389]

Starting to look good man!

 

[tsunari]

So from what I can tell, your (EUDM) wiring schematics look very similar to the USDM 2G turbo schematics. If you are actually doing a turbo swap, I can see why you would want to use a turbo ecu with the fuel mappings and what-not.

However, I do not thing using a 1G turbo ECU would be the best of ideas . . . unless you decide to swap out the entire main harness as well, but even then I believe you would be asking for a headache as pin assignments to the ECU have changed around a bit when switching from a 1G (90-94) to a 2G (95-99) and a bit more so with the EUDM 2G (You guys have stuff like the immobilizer, daytime running lights, etc . . .)

Easiest way I can see would be to put in the 6-bolt with a turbo 2G ecu and re-use your sensors (Knock, coolant temp, etc . . .) from your 7-bolt with the factory harness still intact.

Check out Remote Start systems for immobilizer bypass modules, but in the meantime I'll look at the schematics and see if there's a "cheaper" alternative.

 

[AlphaVision]

I appreciate your help, tsunari!

I will definitely try the remote start modules. Thanks for the tip.

Actually I have the entire 1G turbo engine wiring harness. If I want to use 2G turbo ECU I will still need to change the wiring harness as well. I've checked thw one I have in the car and it lacks a lot of wires so it won't work. Parts are hard to find here so I will have to buy harness and ECU from the US.

Do you think USA 2G turbo ECU's will have that immobilizer module?

 

[tsunari]

I appreciate your help, tsunari!

I will definitely try the remote start modules. Thanks for the tip.

Actually I have the entire 1G turbo engine wiring harness. If I want to use 2G turbo ECU I will still need to change the wiring harness as well. I've checked thw one I have in the car and it lacks a lot of wires so it won't work. Parts are hard to find here so I will have to buy harness and ECU from the US.

Do you think USA 2G turbo ECU's will have that immobilizer module?

Well from what I've seen with comparing to my FSMs, your ECU shares a lot of similarities with the 2G Turbo ECU. The wires you might be missing may not be all that important, stuff like stock turbo gauge, etc.

Somewhere in your FSM, there should be a pin-out listing all of the stuff that is connected to your ECU. Compare that to the pin-out of a 2G Turbo ECU and see what you come up with as different.

As for the immobilizer, I do not believe any of the USDM DSMs came with it or daytime running lights as yours do. If *any* year did, it would have been the 99s, and only a select few at that.

 

[SAUBIK]

Sorry for re-opening old thread, but I actually have same problem with the immobilizer same “Euro spec 4G63”, but I have turboed that N/A engine, stock harness but with added resistor for injectors, and added map sensor (of course with modified cabling).

I have few ECUs by hand. 2x N/A, 1x 95´ turbo EPROM and 1x 98 or 99 GSX blackbox.

With both N/A ECUs car started and in second key position before start is heard fuel pump for few second. But with both turbo ECUs I hear nothing.

Are there some “tips”, that I can apply ?

Can I turn the immobilizer off, or disable or change it in at least in blackbox? Or does it needs to change or modify wiring? (I'm not afraid of it, just I need to know, where is problem and I can modify everything.

 

[FIBA M - EC17PSE]

I have an NA 1G and 2G turbo and in stock form NONE prime the pump! Only when cranking does it start to pump fuel by the design of the wiring system. The only way to pre prime is to use ECMLinks feature in the ECU and that's what I have on my 2g now activated.

Out side of ECMLink none prime the fuel. My friends Talon and my other friends Eclipses do not prime when turned to ACC2. Only when cranking.

 

[chrysler kid]

On the 2g turbo cars they only prime when cranking. To "test" the pump or prime it there is a test connector you can jump on the firewall that will energize the pump.