New High Boost/Load Sputter - COP Kit (w/ Logs)
06-01-2019, 01:29 PM
#21
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New fuelNew spark plugs (BKR7E at .28 gap)New Coils (car has a Trackspeed Engineering Coil on Plug Kit)Re-calibrated LC2 Wideband O2New 10,000uf Capacitor (for Cop harness)New Crank position censorScrubbed the grounds (behind exhaust manifold, and on throttle body)Turned off all boost cut features (fuel/ignition in Tuner studio)New Fuel FilterRe-flash Firmware to DIYPNPVisually Inspect Cams/Valve Springs
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06-13-2019, 09:41 PM
#24
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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 fuelNew spark plugs (BKR7E at .28 gap)New Coils (car has a Trackspeed Engineering Coil on Plug Kit)Re-calibrated LC2 Wideband O2New 10,000uf Capacitor (for Cop harness)New Crank position censorScrubbed the grounds (behind exhaust manifold, and on throttle body)Turned off all boost cut features (fuel/ignition in Tuner studio)New Fuel FilterRe-flash Firmware to DIYPNPVisually Inspect Cams/Valve SpringsNew LS2 Coil Setup
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06-15-2019, 12:38 PM
#26
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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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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?
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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06-15-2019, 02:31 PM
#31
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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?
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?
Four Logs:
- 2019-06-13_20.36.41.msl - Standard pull. Car begins to mess up a half second before letting off
- 2019-06-15_13.45.53.msl - <25% throttle up to 6,600 RPMs. No issue
- 2019-06-15_13.46.50.msl - <50% throttle up to 5,100 RPM. Issue around 5K
- 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.
Last edited by Carloverx; 06-15-2019 at 04:49 PM.
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06-15-2019, 05:48 PM
#34
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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.
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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06-15-2019, 09:38 PM
#35
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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.
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.
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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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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06-16-2019, 09:50 AM
#37
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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?
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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06-22-2019, 12:45 PM
#38
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New fuelNew spark plugs (BKR7E at .28 gap)New Coils (car has a Trackspeed Engineering Coil on Plug Kit)Re-calibrated LC2 Wideband O2New 10,000uf Capacitor (for Cop harness)New Crank position censorScrubbed the grounds (behind exhaust manifold, and on throttle body)Turned off all boost cut features (fuel/ignition in Tuner studio)New Fuel FilterRe-flash Firmware to DIYPNPVisually Inspect Cams/Valve SpringsNew 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).
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