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New High Boost/Load Sputter - COP Kit (w/ Logs)

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New High Boost/Load Sputter - COP Kit (w/ Logs)

 
Old 06-01-2019, 01:29 PM
  #21  
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  • New fuel
  • New spark plugs (BKR7E at .28 gap)
  • New Coils (car has a Trackspeed Engineering Coil on Plug Kit)
  • Re-calibrated LC2 Wideband O2
  • New 10,000uf Capacitor (for Cop harness)
  • New Crank position censor
  • Scrubbed the grounds (behind exhaust manifold, and on throttle body)
  • Turned off all boost cut features (fuel/ignition in Tuner studio)
  • New Fuel Filter
  • Re-flash Firmware to DIYPNP
  • Visually Inspect Cams/Valve Springs
This is getting very frustrating. What am I missing here?!
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Old 06-01-2019, 03:00 PM
  #22  
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All four spark plugs are cracked (Cracks that start at the top and run most of the length of the plug. - The upper porcelain section, not near the lower electrode)
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Old 06-01-2019, 04:24 PM
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Replaced all four plugs. Still having the issue. Rechecked new plugs and they're no cracked.
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Old 06-13-2019, 09:41 PM
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Still having issues. Total f****ing nightmare. Swapped the Toyota COPs for LS2 Coils. No help. Any experts in central/north NJ I can bring it to?
  • New fuel
  • New spark plugs (BKR7E at .28 gap)
  • New Coils (car has a Trackspeed Engineering Coil on Plug Kit)
  • Re-calibrated LC2 Wideband O2
  • New 10,000uf Capacitor (for Cop harness)
  • New Crank position censor
  • Scrubbed the grounds (behind exhaust manifold, and on throttle body)
  • Turned off all boost cut features (fuel/ignition in Tuner studio)
  • New Fuel Filter
  • Re-flash Firmware to DIYPNP
  • Visually Inspect Cams/Valve Springs
  • New LS2 Coil Setup
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Old 06-15-2019, 10:40 AM
  #25  
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Fwiw, I ran 0.022" gap on my plugs with truck coils.

I'll need to read up but you aren't noticing any sync losses when logging are you?
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Old 06-15-2019, 12:38 PM
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Originally Posted by psyber_0ptix View Post
Fwiw, I ran 0.022" gap on my plugs with truck coils.

I'll need to read up but you aren't noticing any sync losses when logging are you?
EDIT: I see it loosing sync, reason 2, "missing tooth at wrong time." I'm going to go inspect the teeth.
EDITx2: I've had this sync issue in the past when the car was running fine. It's unlikely related to this.

Last edited by Carloverx; 06-15-2019 at 01:06 PM.
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Old 06-15-2019, 01:25 PM
  #27  
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Have you actually measured voltage at the battery with the engine running?
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Old 06-15-2019, 01:57 PM
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Originally Posted by SpartanSV View Post
Have you actually measured voltage at the battery with the engine running?
Just measured it again. 14.39v
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Old 06-15-2019, 02:10 PM
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Any more logs you can share?

The amount of fluctuation in coolant temp and lack of change in MAT doesn't look right at all.
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Old 06-15-2019, 02:19 PM
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I think you need to handle this issue a bit more meticulously, rather than just fishing for ideas and throwing parts at it.
I would propose to check all issues you see from the MS logs. For instance: wrong battery voltage reading could lead to incorrect dwell times and thus misfiring. Same applies to sync loss.
Problems could get progressively worse, having seen it in the past is not a guarantee it will not cause issues.
Do you have any recent logs after all the things you have fixed since your first post in this thread?
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Old 06-15-2019, 02:31 PM
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Originally Posted by DaWaN View Post
I think you need to handle this issue a bit more meticulously, rather than just fishing for ideas and throwing parts at it.
I would propose to check all issues you see from the MS logs. For instance: wrong battery voltage reading could lead to incorrect dwell times and thus misfiring. Same applies to sync loss.
Problems could get progressively worse, having seen it in the past is not a guarantee it will not cause issues.
Do you have any recent logs after all the things you have fixed since your first post in this thread?
Agreed 100%. If I was more proficient at reading the logs, or working with electronics, or had I thought this would result in issue years down the road, I'd certainly have run this down sooner. Instead I've been focusing on stuff I'm at least KINDA familiar with and hoping for a fix (after all, I'm sure the vast majority of load related stuttering is based on ignition/coil issues). Any pointers on where to start with trouble shooting voltage? I'm assuming the solution isn't simply adjusting a table in Tunerstudio. Same q with the sync loss. Thanks!


Four Logs:
  1. 2019-06-13_20.36.41.msl - Standard pull. Car begins to mess up a half second before letting off
  2. 2019-06-15_13.45.53.msl - <25% throttle up to 6,600 RPMs. No issue
  3. 2019-06-15_13.46.50.msl - <50% throttle up to 5,100 RPM. Issue around 5K
  4. 2019-06-15_13.48.51.msl - Partial throttle to cause the issue, back off the throttle then back on the throttle to cause the issue again.

Also, here's a video of the issue. (Let me know if you can't see the video) It start happen at 5,100 and stays happening until I let out. Turn up and volume and listen closely.

Again, this entire setup has no problem running 30+psi at 400whp. Then after taking it out from winter storage, it ran fine for a few pulls. Then started to do this slightly, then get worse and worse. It's so odd.
Attached Files
File Type: msl
2019-06-15_13.48.51.msl (54.4 KB, 5 views)
File Type: msl
2019-06-15_13.46.50.msl (50.7 KB, 5 views)
File Type: msl
2019-06-15_13.45.53.msl (74.0 KB, 5 views)
File Type: msl
2019-06-13_20.36.41.msl (1.48 MB, 6 views)

Last edited by Carloverx; 06-15-2019 at 04:49 PM.
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Old 06-15-2019, 03:41 PM
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You don't have any attached logs/links to logs.
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Old 06-15-2019, 04:50 PM
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Originally Posted by SpartanSV View Post
You don't have any attached logs/links to logs.
Updated
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Old 06-15-2019, 05:48 PM
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Your MAT sensor is not working. It's probably not your main issue but it definitely needs to be fixed.

You also have a lot more fluctuation on your coolant and tps sensors than you should. I would put a meter on the 5v reference from the megasquirt and see how much it's fluctuating with engine rpm.
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Old 06-15-2019, 09:38 PM
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Originally Posted by SpartanSV View Post
Your MAT sensor is not working. It's probably not your main issue but it definitely needs to be fixed.

You also have a lot more fluctuation on your coolant and tps sensors than you should. I would put a meter on the 5v reference from the megasquirt and see how much it's fluctuating with engine rpm.
I found the MAT sensor issue and it should be solved.

Next I'll read what a 5V reference is, and how I can check it. I appreciate it.

Last edited by Carloverx; 06-16-2019 at 12:12 PM.
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Old 06-16-2019, 08:44 AM
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Your battery voltage reading is still broken, which is weird. Also I think 5.0ms of dwell on Toyota COPs is a bit too much dwell. Neither of those issues explain your issue. Can you elaborate a bit on your wiring issues? What was causing the short and what caused your MAT to not work? Any pictures of the ECU and wiring situation?
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Old 06-16-2019, 09:50 AM
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Originally Posted by DaWaN View Post
Your battery voltage reading is still broken, which is weird. Also I think 5.0ms of dwell on Toyota COPs is a bit too much dwell. Neither of those issues explain your issue. Can you elaborate a bit on your wiring issues? What was causing the short and what caused your MAT to not work? Any pictures of the ECU and wiring situation?

Your battery voltage reading is still broken, which is weird. - Agreed. I'm not familiar with how to fix this so I'll have to read up

Also I think 5.0ms of dwell on Toyota COPs is a bit too much dwell. - I was running 2.4ms dwell on the Toyota COP. With the LS2 Coils I'm now running 5.0ms (will likely bump it down to 4.5).

Neither of those issues explain your issue. Can you elaborate a bit on your wiring issues? What was causing the short and what caused your MAT to not work? - There were at least two wiring issues: First there was a short caused by essentially an exposed wire. This wire WAS going to power an external MAP sensor. You can totally ignore this issue. It's been cared for and wasn't the start of anything ongoing. Second the actual connector on the MAT sensor was built correctly (the metal pins that the wires connect to were not the right ones).

Any pictures of the ECU and wiring situation? - I can take a picture. Anything in particular? We talking the ECU itself or it connected under the dash?

Thanks!

Last edited by Carloverx; 06-16-2019 at 12:13 PM.
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Old 06-22-2019, 12:45 PM
  #38  
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  • New fuel
  • New spark plugs (BKR7E at .28 gap)
  • New Coils (car has a Trackspeed Engineering Coil on Plug Kit)
  • Re-calibrated LC2 Wideband O2
  • New 10,000uf Capacitor (for Cop harness)
  • New Crank position censor
  • Scrubbed the grounds (behind exhaust manifold, and on throttle body)
  • Turned off all boost cut features (fuel/ignition in Tuner studio)
  • New Fuel Filter
  • Re-flash Firmware to DIYPNP
  • Visually Inspect Cams/Valve Springs
  • New LS2 Coil Setup
  • MAT sensor fixed and reading correctly
  • Rewired/resoldered all aftermarket wires under the dash (Was hoping this would solve my sync issue since I'm tapped into the same ground wire as the crank position sensor, but it did not).
I'm back at zero at this point. Really at the end of my rope here. I can try and run down my 5V and 12V readings, but I am way out of my league on it. Going to try and send the ECU out for review I guess. This is nuts.

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Old 06-22-2019, 01:02 PM
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Is vbatt still showing 17v?
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Old 06-22-2019, 03:19 PM
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Originally Posted by gooflophaze View Post
Is vbatt still showing 17v?
Yes.
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