Help with mines tuned ecu - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

hayai_240 · 02-12-2008, 09:15 AM

So my swap came w/ a mines tuned ecu for my redtop sr. It ran just fine for the last 2 months. Over the weekend i decided to put the plastic kick panel over it but it wouldn't fit. So i had to unbolt the ecu and adjust it a few times. After finishing, my car no longer wanted to start. I wasn't getting any spark. The ecu is throwing code 11 which is camshaft position sensor. But it would also throw code 55 sometimes which means everythings fine.

Whenever I put the key in the "ON" position, the ecu starts to flash the codes right away. I can't seem to get it out of dignostic mode. I've turned the mode selector screw fully clockwise then fully counterclockwise multiple times but it still stays in diagnostic mode.

Somehow, I was actually able to get my car to start twice but as the car was running, the second i touch the ecu my car would die immediately. This was a clear indication that there was a wiring issue or a bad ecu. I swapped in a stock redtop ecu and my car fired right up w/ no problems. So I believe I have a bad ecu.

When i was looking at my mines tuned ecu, i noticed something jiggling inside. I was able to jiggle it out and it turned out to be a piece of solder. So i opened up the ecu to see if i could find where it came from but couldn't see anything missing a solder connection.

I drove my car around on the stock redtop ecu and it drove fine but definitely didn't pull as hard as the mines tuned ecu. So I am wondering, Is it possible for me to take the ROM tune from the mines ecu and put it in my stock redtop ecu? I've included pictures of my mines ecu below. All I have to do is unplug the ribbon cable and swap it to my stock ecu? I haven't opened my stock ecu yet but does it also have a separate daughterboard like the mines ecu?

Also, if i could get some insight on how to reset my ecu and clear the codes because i can't seem to get it to do that. Will leaving it unplugged for 24 hours clear the codes and reset the ecu?

Sorry for the long novel but just wanted to be as thorough as possible.

02-12-2008, 09:15 AM	#1
hayai_240 Leaky Injector Join Date: Jul 2006 Location: Seattle Posts: 142 Trader Rating: (2) Feedback Score: 2 reviews	Help with mines tuned ecu So my swap came w/ a mines tuned ecu for my redtop sr. It ran just fine for the last 2 months. Over the weekend i decided to put the plastic kick panel over it but it wouldn't fit. So i had to unbolt the ecu and adjust it a few times. After finishing, my car no longer wanted to start. I wasn't getting any spark. The ecu is throwing code 11 which is camshaft position sensor. But it would also throw code 55 sometimes which means everythings fine. Whenever I put the key in the "ON" position, the ecu starts to flash the codes right away. I can't seem to get it out of dignostic mode. I've turned the mode selector screw fully clockwise then fully counterclockwise multiple times but it still stays in diagnostic mode. Somehow, I was actually able to get my car to start twice but as the car was running, the second i touch the ecu my car would die immediately. This was a clear indication that there was a wiring issue or a bad ecu. I swapped in a stock redtop ecu and my car fired right up w/ no problems. So I believe I have a bad ecu. When i was looking at my mines tuned ecu, i noticed something jiggling inside. I was able to jiggle it out and it turned out to be a piece of solder. So i opened up the ecu to see if i could find where it came from but couldn't see anything missing a solder connection. I drove my car around on the stock redtop ecu and it drove fine but definitely didn't pull as hard as the mines tuned ecu. So I am wondering, Is it possible for me to take the ROM tune from the mines ecu and put it in my stock redtop ecu? I've included pictures of my mines ecu below. All I have to do is unplug the ribbon cable and swap it to my stock ecu? I haven't opened my stock ecu yet but does it also have a separate daughterboard like the mines ecu? Also, if i could get some insight on how to reset my ecu and clear the codes because i can't seem to get it to do that. Will leaving it unplugged for 24 hours clear the codes and reset the ecu? Sorry for the long novel but just wanted to be as thorough as possible.

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