[Trig1 error when VVT control on]

On 7/10/2018 at 1:22 PM, Adamw said:

Yes, that seems to be your problem but the VVT trigger modes are generally designed to allow large movement between the cam and crank patterns, usually more than 100 degrees.  I suspect your cam/crank phasing may be much different to the Mazda 3 that this triggermode was designed for.  I havent had much time to spend looking at your trigger scope closely so I will do some work on that tonight.

 

Just FYI, triggering and VVT control are two completely seperate functions.  VVT set up has no influence on the trigger.  The VVT offset is just to "zero" the cam position.

As mentioned above, VVT offset does not seem to be related to the cause of the error.

When use offset 720deg, displayed cam position zero that VVT controled off.

[Trig1 error when VVT control on]

On 8/10/2018 at 4:29 AM, Leiden said:

Turn the pullup resistors on for trig 1 & trig 2. Also set the trigger edge's back to falling.

Recalibrate the trigger offset and redo the cam angle test to get the offset value for trigger 2 vvt.

Currently, A and B are connected in parallel.(piggyback) 

Even in this state,  is it necessary to set trig1/2 pullup on?

 

[Trig1 error when VVT control on]

On 7/3/2018 at 6:04 AM, Adamw said:

Can you try changing Trig 1 edge to "rising", your trigger 1 is inverted from the normal Mazda 3 pattern.

Here is what the ECU expects the Mazda 3 pattern to look like:

 

I Try to get same waveform as mazda3  pattern,and I succeeded in getting it wIth General purpose logic ic.

I tried to input the obtained waveform, but the error did not disappear.

Is there a possibility of a trigger processing bug?

 

 

[VVT Settings for Mazda 3 Engine]

on my car(NCEC LE-VE) ,the condition under which symptoms appear is about 10deg or more advance cam angle.

About Trig2 waveform, I write it in this article.

 

 

[VVT Settings for Mazda 3 Engine]

Hi. Is the problem a symptom like a movie?

I am troubled with this symptom.

Is Trig2 waveform changed in idlespeed and about 3000rpm?

[Trig1 error when VVT control on]

I did not think the signal was inverted.

Immediately, try to change trig1/2 edge rising and resetting trigger offset.

As a result, It seems that the Ignition signal does not appear normally.

 

Is there a function to check the Ignition signal in PClink like triggerscope?

[Trig1 error when VVT control on]

Mr.Adamw

Thank you for taking the time to this problem.

Currently, trig1 and trig2 connection method is piggyback that also one of the causes of trouble?

[Trig1 error when VVT control on]

 I tried it several times and get cam angle value #1 to 6.  After that input value to VVT offset.  but,trig1 error did not improve.

later,I’ll retry to cam test.

 

First of all, is the connection part of trig2 input was wrong…?

 

[Trig1 error when VVT control on]

Reason for occurrence of trig1 error, The phases of trig1 and trig2 are shifted by  Advance angle of cam?

 

[Trig1 error when VVT control on]

hallo all.

I got a triggerscope at 3000rpm.

attached triggerscope log and rev1000 to 7000 rpm log data.

thanks.

 

Trigger Scope Log 2018-07-7 9;32;37 am_3000rpm.llg

MX-5_NCEC non VVT control.llg

[Trig1 error when VVT control on]

trigger 1 calibration is this item,isn't it?

after trig1 edge set to rising,and change few degrees both directions. but  engine rev count is not stable .

[Trig1 error when VVT control on]

Thanks for your reply.

after get another triggerscope waveform at 3000rpm,　I'll post here.

thanks a lot.

[Trig1 error when VVT control on]

Hallo all.

try to change Trig1 edge fall to rise.but soon engine was stalled out.

Even if it does not stall, engine rev count is not stable .

 

and, try the camtest again and set the obtained 6 offset value in the trig2 offset . but,trig1 error did not improve .

I will attach a log when an error occurs.

thanks.

Log 2018-07-5 2;28;11 pm.llg

[Trig1 error when VVT control on]

Thank You for tip!　I'll  I change  trigger1 edge falling to rising.

I will report when the result comes out.

[Trig1 error when VVT control on]

Thanks for your reply.

I did not get triggerscope log data.but,There is an image in the idling state.

I Try to get that this weekend.

 

Please point out if there is a part where the setting is incorrect.

G4+ Xtreme _mx-5_NCEC10.pclr

[Trig1 error when VVT control on]

Hello all

I just finished wiring of an Extreme ECU on a MX5 NC 2.0(LF-VE)

I started try to control VVT. But VVT control was on, trig1 error occurred like a linked movie.

 

when VVT control is off, This symptom does not occur .

Has anyone experienced such a case?

 

[MX5 NC cam trigger setting]

I tried the advertised content.
I Set 559deg to VVT offset,but inlet/LH signal error did not disappear.
Perform the cam test again, and set the offset value that 613deg. inlet/LH signal error was disappear.

Next, I tried changing the trigger1 and 2 edge setting  falling to rising. but no invert  signal.

And unfortunately no initial explosion at all …

 

 

Log 2018-04-29 1;01;24 pm.llg

G4+ Xtreme _mx-5_NCEC7.pclr

[MX5 NC cam trigger setting]

Thanks for your reply.
change that value and try this weekend.

If there is any problem, please let me ask a question.

[MX5 NC cam trigger setting]

Thanks for your reply.

I tried cam angle test,and I got the result of offset angle was 20 degrees.and set offset angle that value.
but,  inlet/LH posn is 32 egrees. incorrect offset value…？　cam test pulse is 6.

attached image was japanese,sorry…

 

 

[MX5 NC cam trigger setting]

Thank You for tip!　I'll  I change  trigger edge falling to rising.

I have one more question.

I do not know the correct value of Trigger2 VVT offset.

I want you to tell me if you know about offset value.

 

[MX5 NC cam trigger setting]

I have a G4+Xtreme.

I did triggerscope and got waveform that is the figure below.

but ,waveform is upside down compared  the figure in the service manual…

something  setting is wrong…?

[MX5 NC cam trigger setting]

Hello all

I just finished wiring of an Extreme ECU on a MX5 NC 2.0(LF-VE)

I do not know cam trigger setup to work on this engine. Wiring is maybe ok…

rpm trigger is setting to MAZDA3

 Wich trigger should i use on MX5 NC ?