Major Missing Issue!
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,465
Likes: 12
Here us a video of the data log I did this morning. It is only a recording of half the log. I recorder it from.right before the issues started to happen. As you can see on the graph below spark starts to fall off alot. I know you can't diagnose the car and crazy issues by data logging buy I'm hoping someone will see something I've dont. I plan on pulling the opti tonight.
http://youtu.be/ZE3-JBfn3Ak
http://youtu.be/ZE3-JBfn3Ak
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
The first thing I noticed is that the short term and long term fuel trims are stuck at 128. That is an indication that you're in open loop mode. I see that you mentioned earlier that the tune locked out closed loop mode, so that seems reasonable.
The thing that surprised me was the knock counts. I saw the advance go down to 3° at one point, but thought it was strange that the retard stayed on 0. I suggest disconnecting the knock sensor(s) for a test. I think the ESC module is inside the ECM on your car, so that would make it difficult to take out of the picture. For comparison, my car will show a few knock counts at startup (it's supposed to do that -- the ECM tests the ESC system at startup), but none when it's running.
It's possible your knock sensors aren't the correct ones for your car. I think your car has two -- not sure about that.
The thing that surprised me was the knock counts. I saw the advance go down to 3° at one point, but thought it was strange that the retard stayed on 0. I suggest disconnecting the knock sensor(s) for a test. I think the ESC module is inside the ECM on your car, so that would make it difficult to take out of the picture. For comparison, my car will show a few knock counts at startup (it's supposed to do that -- the ECM tests the ESC system at startup), but none when it's running.
It's possible your knock sensors aren't the correct ones for your car. I think your car has two -- not sure about that.
Last edited by Cliff Harris; Jun 12, 2014 at 02:50 AM.
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,465
Likes: 12
The first thing I noticed is that the short term and long term fuel trims are stuck at 128. That is an indication that you're in open loop mode. I see that you mentioned earlier that the tune locked out closed loop mode, so that seems reasonable.
The thing that surprised me was the knock counts. I saw the advance go down to 3° at one point, but thought it was strange that the retard stayed on 0. I suggest disconnecting the knock sensor(s) for a test. I think the ESC module is inside the ECM on your car, so that would make it difficult to take out of the picture. For comparison, my car will show a few knock counts at startup (it's supposed to do that -- the ECM tests the ESC system at startup), but none when it's running.
It's possible your knock sensors aren't the correct ones for your car. I think your car has two -- not sure about that.
The thing that surprised me was the knock counts. I saw the advance go down to 3° at one point, but thought it was strange that the retard stayed on 0. I suggest disconnecting the knock sensor(s) for a test. I think the ESC module is inside the ECM on your car, so that would make it difficult to take out of the picture. For comparison, my car will show a few knock counts at startup (it's supposed to do that -- the ECM tests the ESC system at startup), but none when it's running.
It's possible your knock sensors aren't the correct ones for your car. I think your car has two -- not sure about that.
Also my car has a 2 bar map sensor so I believe that changes alot of stuff on the log!
Last edited by smooth1990; Jun 12, 2014 at 08:59 AM.
