B-Series with COP conversion no sync (and EGT Sensor setup problems) | AEM
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Carder
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Joined: 07/18/2019 - 12:45
B-Series with COP conversion no sync (and EGT Sensor setup problems)

Hello,

I have recently attempted a COP conversion on my B20VTEC turbo.  The car was running and tuned with the distributor setup and was working beautifully. 

INFO:

AEM Infinity 506

Honda OBD1 PNP Harness (30-3501)

AEM EPM

K-series coils

WIRING:

COILS - I have a keyed power source runing to the k-series coils.  They are grounded to the head.  The coil signal wires run to the COIL 6P -duetsch connector on my PNP harness (1-1,2-2,3-3,4-4), 5 and 6 are ground/power and I am not using them. (Should I be?)

EMS - Keyed power source, ground running inside cab with power wire, the ground is bolted to the body (clean connection, continuity between body point and ground pin at AEM EMS 4P Deutsch connector), Cam and Crank pins/wires were added to AEM PNP harness in locations, C25 crank 0 and C26 cam 1,

I even added a pin to C2 (LS5) so that I could connect my tachometer.

TIMING:

I set the base timing by locking it in at 16 degrees in the wizard and adding an extension between Coil #1 and the plug so I could get a reading with my timing light.  Initially I was at 336 degrees (prior to startup).  I then fired the vehicle up, it started and I re-checked the timing while it was locked in at 16 degrees.  I bumped it up to 338 degrees in the Iginition Sync to get it at 16 degrees timing while running.  I then shut the car off removed the timing light, plug extension and wired (out of car)starter crank button.  I got into the car and tried to start it, nothing!  It cranked and cranked and cranked to no avail.  I then setup my timing light again.  While attempting to check the timing the car started back up. I then removed everything shut the car off and tried to start it again.  Nothing, it just cranked and didn't fire at all, no sync on the diagnostics while cranking.  When it started and ran I had sync, now no sync what happened?

I have the datalogging set up to record when running so there should be a log somewhere but the dates have somehow gotten all messed up (random future years appearing, ex 2082).  I have also been having trouble viewing them. 

I believe I have everying wired up correctly (or was I required to use pins #5 and #6 on the COIL 6P duetsch connector for the ground and power to the coils(not sure why this would matter))

How much power do these coils need? I have a single 10 gauge wire feeding power to all 4 coils, is this enough? (no heat from the wire yet)

 

At this point I am guessing I have a signal issue from the EMS cam and or crank wires.  AEM if I could get your help finding and assessing the correct data logs it would be greatly appreciated. My next race event is September 20th, I would love to have the car running smoothly on the COP system before then so I don't have to revert back to the distributor.

Also I have added your X-series EGT gauge and wired it into my AUX connector (12P Deutsch) to data log (this was a little confusing and may be where I screwed up as it said white wire +0-5v so i wired it into the #4 pin on the Aux connector (C49 on infinity) but realized this was an output and it says input, did I do this correctly? Or should it be ran to another analog_in_# pin?).  I wired the brown wire to the #3 pin on the AUX connector (C23 on infinity) hopefully this was at least correct. The gauge works and displays a temperature however I cannot find anything in the Infinity software when trying to set it up to data log.

 

As always I appreciate your help/input AEM, Thank you!

 

AEM_NS
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Last seen: 6 hours 27 min ago
Joined: 06/06/2014 - 09:31
Just take a PC log. Take a

Just take a PC log. Take a log showing the engine starting and a log of it not starting and post them here. Doesn't make much sense that having a timing light present makes the difference between running and not running.

Carder
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Last seen: 1 month 1 week ago
Joined: 07/18/2019 - 12:45
Here are the PC logs and

Here are the PC logs and sessions.   I hope you can figure out whats going on because I am very confused.  I think I might go back out and install the spark plug wire that I use as jumper to see if the car will start with it connected.  From there the only thing I change is the starter signal wire.  I remove it to attach the remote start button.  Neither of these actions should impact the sync or cause a no start issue.

No Start Sept 5th 2020.itlog

No Start Sept 5th 2020.itssn

start timing light sept 5th 2020.itlog

start timing light sept 5th 2020.itssn

Carder
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Last seen: 1 month 1 week ago
Joined: 07/18/2019 - 12:45
weird I can't see the files. 

weird I can't see the files.   Clicked edit on the original message and the files are there.  I will check back tomorrow. Thanks for your help

 

* Figured out that I needed to click insert to put them into the message, my mistake.

Carder
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Last seen: 1 month 1 week ago
Joined: 07/18/2019 - 12:45
I have narrowed down what is

I have narrowed down what is going on to the starter button. More specifically I believe I have something wired (EPM or coils) that has power when the key is in the on position but loses power when cranking with the ignition switch (key). I am going to wire them both up on toggle switches. And I will post an update as soon as I can.

 

** The re-wire worked out and the car starts using the key now.  I believe the EPM was losing power while cranking with the ignition switch (key), using the remote starter button bypassed this issue as the key remained in the on position allowing the EPM to remain powered and the car to start.

AEM_NS
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Last seen: 6 hours 27 min ago
Joined: 06/06/2014 - 09:31
Glad you figured it out.

Glad you figured it out. Common Honda wiring problem.

Carder
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Last seen: 1 month 1 week ago
Joined: 07/18/2019 - 12:45
Would you happen to know if I

Would you happen to know if I wired my EGT gauge in correctly?

"Also I have added your X-series EGT gauge and wired it into my AUX connector (12P Deutsch) to data log (this was a little confusing and may be where I screwed up as it said white wire +0-5v so i wired it into the #4 pin on the Aux connector (C49 on infinity) but realized this was an output and it says input, did I do this correctly? Or should it be ran to another analog_in_# pin?).  I wired the brown wire to the #3 pin on the AUX connector (C23 on infinity) hopefully this was at least correct. The gauge works and displays a temperature however I cannot find anything in the Infinity software when trying to set it up to data log."

Or more accurately does pin #C49 on Infinity (#4 on AUX connector) output 0-5+v? Because that would be sending power to the sensor when it needs to accept it as a signal correct?  Should I then wire the 0-5V output from the gauge to an analog input?

AEM_NS
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Last seen: 6 hours 27 min ago
Joined: 06/06/2014 - 09:31
Right - analog output signal

Right - analog output signal needs to go to an analog input pin in the ECU.