Omar Allaga Posted November 7, 2014 Report Share Posted November 7, 2014 Hi All I am installing a Link Extreme on my E36 with M52 single vanos, I have connected the original trigger sensors and didn't get RPM Data log shows Trig 1 & 2 signals stay on the NO reading, tried to connect an M50 VR crank sensor and get data log reads Yes in the Trig1 signal but still no RPM reading any advice how to fix the problem either using original sensor or M50 sensor, and what why Trig signal is Yes on the data log but no RPM is it Arming threshold related problem   Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted November 8, 2014 Report Share Posted November 8, 2014 Hi Omar, Do you have an oscilloscope to measure the voltage from the reluctor trigger. If not have you tried the SCOPE TRIGGER FUNCTION. Yes the arming and filtering levels of the TRIG 1 and TRIG 2 sensors if both VR will effect this. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted November 9, 2014 Author Report Share Posted November 9, 2014 Hi Dave Actually I don't have oscilloscope so I have tried using a digital. Multimeter that shows a reading of around 0.5 volt maximum I think it couldn't be measured with the DMM but just trying to be sure that sensor is working I will try the Scope TTrigger Today, should it be a wave reading or what? I have tried with noth filter and arming but no success Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted November 10, 2014 Author Report Share Posted November 10, 2014 Dave I didn't find the Trigger scope on my Extreme ECU so please advice how to check it, and I have checked several settings and changed two sensors but still have the same issue no RPM readings but Trigger status still showing YES please check attached    Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted November 10, 2014 Report Share Posted November 10, 2014 Hi OMAR, If you go to the tabs at the top of the screen and open the ECU CONTROLS tab, the last option at the bottom of the screen is TRIGGER SCOPE, Your TRIGGER 1 is VR so you will see a sine wave. Is your TRIGGER 2 a VR sensor 2 wires or 3 wire HALL EFFECT. If trigger 2 is 3 wire HALL EFFECT, make sure it is set up correctly. If it is HALL EFFECT it will produce a square wave signal. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted November 11, 2014 Author Report Share Posted November 11, 2014 Thanks Dave My sensor is a VR but three wires as it has a shield wire, I was working on it and get a strange result as I got an RPM reading only when I choose SYNC mode to be NONE, Â Quote Link to comment Share on other sites More sharing options...
Simon Posted November 12, 2014 Report Share Posted November 12, 2014 Do you still have a trigger 2 input? Or is this not connected. If it is not being used you need to set trigger two sync mode to none before you will see an RPM reading. If the ECU is expecting a sync it will need to see one before it shows an RPM Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted November 12, 2014 Author Report Share Posted November 12, 2014 Thanks for the advice Simon I have fixed the problem by replacing cam position sensor but I am having an erratic RPM reading as it's jumping to a very high numbers while cranking, I have tried Trigger Arming threshold, ground connections but still have, trigger scope is showing a maximum of 0.66V as per attached photo but still RPM is very erratic Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted November 13, 2014 Author Report Share Posted November 13, 2014 As expected it's a wiring problem that was fixed by getting signal directly from Crank/cam sensor instead of OEM harness, still have small problem which is low RPM as it reads 180 rpm while starting which is low and counting Crank errors Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted November 13, 2014 Report Share Posted November 13, 2014 Hi , What have you got your arming voltages set to at that rpm and what filter levels are you using. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted November 13, 2014 Report Share Posted November 13, 2014 Hi, I forgot to ask , can you please attach PCL file or a screenshot of all of your trigger settings in PC LINK please. Regards Dave Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted November 14, 2014 Author Report Share Posted November 14, 2014 Hi Dave I have used the Arming threshold coming with Link software for E36 plug in ECU, and I have tried to change the numbers based on the attached scope I got while cranking as all it happens while cranking I don't want to start my engine with any trigger errors, and I am using the level 1 filter ( Tried to raise it to the level 3 for trigger one but didn't have any affect on RPM count)  attached is the scope I got and my trigger settings  Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted November 25, 2014 Author Report Share Posted November 25, 2014 Any Advice please???? dear admins could you please advice about teh atatched scope? is it normal, is the sync signal correct? I am still having Trigger 1 errors  Quote Link to comment Share on other sites More sharing options...
Simon Posted November 26, 2014 Report Share Posted November 26, 2014 Those signals are actually very good for an engine at crank. Can you post you full map from the ECU (.PCL file) Dave or I can then look over it and can try it on the bench simulator. Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted November 26, 2014 Author Report Share Posted November 26, 2014 Attached as requested waiting for your kind advice Quote Link to comment Share on other sites More sharing options...
James Thorburn Posted December 29, 2014 Report Share Posted December 29, 2014 M50tu engines(as used on the g4 plugin) have a different trigger wheel offset than m52 trigger wheels. Either swap to an m50 trigger wheel or change the offset. Hope i wasn't too late to the party Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted December 29, 2014 Author Report Share Posted December 29, 2014 Hi James even late thanks for the reply, I have already corrected the offest and also corrected cam trigger wheel, I didn't have time to work on it till friday where I have tarted it but it's back firing and popping in the manifold so I will be working on it today to fix this Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted December 29, 2014 Report Share Posted December 29, 2014 Hi, I have had a quick look at your attached PCL file. You have 4 errors at present, unless you have fixed them since posting this. The main one that will give issues is the MAP sensor in error at 0 volts. As you are using MAP as your Main Load Source, this must be fixed. Once the MAP sensor error is fixed you must make sure you calibrate the MAP sensor. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted December 30, 2014 Author Report Share Posted December 30, 2014 Thanks for your reply David the attached file was only to check trigger/Sync signals so there is several errors that was corrected with the starting file (MAP IAT ...) Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted December 30, 2014 Report Share Posted December 30, 2014 Hi Omar, can you give exact details on issue you have now, you have all triggers showing OK and RPM reading OK, but if you try to start it wont fire. Is this correct. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted December 31, 2014 Author Report Share Posted December 31, 2014 Hi Dave currently everything is OK, RPM ignition fueling, but car couldn't start I have checked today and found that spark is very weak Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted December 31, 2014 Report Share Posted December 31, 2014 Hi Omar, are you using the factory coils. Are the plugs wet or heavily carbon fouled. The dwell table values may need to be made higher for your coils, however I advise against touching the dwell table, you must test that the coils have a good 12 volt supply to them while cranking the engine. Regards Dave. Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted January 4, 2015 Author Report Share Posted January 4, 2015 Hey David Actually plugs are wet I have boosted power so while cracking it's still around 12 And now i am trying hard to find the appropriate numbers to start the engine as it's reaching around 500 rpm For less than second then back to cranking. I have noticed also that when jump to start injector PW also jumps Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted January 4, 2015 Report Share Posted January 4, 2015 Hi, the injector pulse width will change due to the dead time table values, What fuel master value are you using, make sure you do not pump the throttle when cranking, I see this a lot. Don't bother trying to dry the plugs, put in a fresh set gapped at 0.32" or 0.8 mm. Set the fuel master to say 5, have master trim at 0%. Crank the engine with the throttle at roughly 5 % open (locked), do not move it from that position while cranking. Adjust the fuel master up in small increments until the engine fires. Once the engine has fired , warm it up but adjust the master to the desired AFR you wish to idle at, you may need to adjust the throttle blade or idle speed control at this point for the engine to have the desired idle speed to run happy. You need to at this point go back and recheck your ignition timing, the value may need to be altered slightly to correct any offset when the engine is running, then set the ignition delay, change this value until the timing does not move when you rev the engine with the ignition lock on. For future reference the Trigger Scope function is at the bottom of the ECU CONTROLS Tab. Any more issues please post your PCL file. Regards Dave.  Quote Link to comment Share on other sites More sharing options...
Omar Allaga Posted January 4, 2015 Author Report Share Posted January 4, 2015 Thanks for the detailed reply Dave actually I have did some of the mentioned points, but will try the nice idea for choosing master fuel trim, but also need to check with you about optimal fuel timing and could it affect the crancking?  anyway attached is my current PCL file  thanks Omar Quote Link to comment Share on other sites More sharing options...
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