2G 95 to 97 ECU swap, can't start, can't scan

[Ezylpro]

Hey! So basically my car was running, but I could not scan it. I sent it to an auto electrical shop so they could take a look on it, and they told me the issue was on my ECU. They sent it to a guy to fix it, but the guy blew it (without my knowledge). Then they basically told me it's my problem and made me tow it out of there.

I was not able to find a 95 ECU in Brazil, so I bought a 97 ECU, and repinned it. I followed this:

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Pin 1 is now 14
Pin 2, is now Pin 1
Pin 15, is now Pin 2
Pin 14 is now Pin 15

The cables were black, and black w/ red strips. Also, I reorganized the sparks cables to follow 97 pattern:

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The thing is: car crank, but wont start. Also, I still can't use the scanner. I bought a Foxwell Nt301. Since my ECU is now a 97, it should be using OBDII, right?

Also, things I noticed after I towed the card (that was fine before): my back seat was loose, I think they might had removed it to see the fuel pump? I also don't rear any "tzzzt" for the fuel line, which I think I heard before. The gas pedal is loose, but I think the car should start even with the loose gas pedal.

Honestly I'm pretty lost on what to look for/where to start searching, and I'm not really into sending my car somewhere else so they can mess it up even more.

 

[Ezylpro]

Also, this is the ECU I bought:

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[92AWDHX40]

2G - Crank but no start

Hi everyone im new to the dsm forums, not only am i new but i recently traded my car for a 96 eclipse gst, also my first, what i noticed right away was that i had very poor acceleration kind of like i was pulling a train, after a week i stalled out in the middle of the road and had to push it...

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How To Diagnose A No-Start

Diagnosing a No-StartI've been seeing a lot of No-Start related threads popping up lately, and I figured a basic Tech Article for diagnosing a few of the most common No-Start problems might be in order. Any images posted are courtesy of my 1990 GSX your setup may differ slightly; refer to...

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you gotta start here do these and then let us know otherwise you chasing gremlins and we need you to do your part and, start with these basics.

 

[Ezylpro]

Hey! Thanks for the threads, I will check them out, specially the "VERIFY ECU OPERATION". I think the CEL was never turning on. This plus the fact I cant scan the car tells me it might be a issue with the ECU I bought.

 

[pauleyman]

Hey! Thanks for the threads, I will check them out, specially the "VERIFY ECU OPERATION". I think the CEL was never turning on. This plus the fact I cant scan the car tells me it might be a issue with the ECU I bought.

you have to at least verify ECU is getting power. You can't say ECU is bad until you know it's turning on or not.

 

[Ezylpro]

you have to at least verify ECU is getting power. You can't say ECU is bad until you know it's turning on or not.

That makes sense. I know I'm asking a lot, but other than checking for blown fuses, how can I know if ECU is getting power? Should I use a multimeter in specific pins on the ecu harness? Do you know which ones?

 

[miliman13]

That makes sense. I know I'm asking a lot, but other than checking for blown fuses, how can I know if ECU is getting power? Should I use a multimeter in specific pins on the ecu harness? Do you know which ones?

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Pin 12

 

[Ezylpro]

Hey! So, updates just so the thread doesn't die.

I have not done all the tests yet, but I checked some fuses in the engine, and I found this 20A engine fuse blown. I bought a new one. Also, I unplugged the ECU and plugged it again. It is working, and I'm able to scan the car.

It shows a lot of "X", but no error code for some reason. I also found an ignition cable dead, I will buy a new one.

Thanks for the help so far!

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[Ezylpro]

Hey! Couple more updates:

Still have not made all the tests. I purchased new spark plugs and ignition cables. Spark is fine. Tested the fuel pump, and it's working just fine. It might be the injectors, or some other thing that I have not tested yet.

It seems that it almost starts and then instantly dies after.

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[We're on Boost]

Hey! Couple more updates:

Still have not made all the tests. I purchased new spark plugs and ignition cables. Spark is fine. Tested the fuel pump, and it's working just fine. It might be the injectors, or some other thing that I have not tested yet.

It seems that it almost starts and then instantly dies after.

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From this page I gather that the 95-96 uses a different cam angle sensor than the 97-99:
https://www.ecmtuning.com/wiki/use_ecmlink_in_98_99_dsm

But I really don't know anything about it. Should find out from somebody who knows.

 

[luv2rallye]

The 95-96 (aka the 2ga) uses a Cam Angle Sensor under the intake cam sprocket. The 97-99 (aka the 2gb) uses a Cam Angle Sensor outside the end of the intake camshaft (passenger side). 97-99 also has the signal inverted from the 95-96: https://www.dsmtuners.com/threads/96-and-98-cams.205188/post-1706404.

 

[luv2rallye]

Here's a guy in California giving out free parts from a 96 GST. Maybe you'd be interested in some which should all fit your 95 GST (like the ECU, etc):

FREE PARTS FROM COMPLETE DONOR CAR 1996 GST MANUAL | HELPING THE COMMUNITY

*FREE* Helping out the DSM community (NorCal, Sacramento CA)1996 GST MANUAL . Donor car, come get what you need from it for free!!**……all I ask is… can someone help me put my engine together (literally have everything already) first time doing this, and I want to do it right. Funds wasn’t...

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