Micael Johannssen Posted March 12, 2016 Report Share Posted March 12, 2016 Hello,I have installed the Link system into my super seven that has an old Vauxhall C20XE engine fitted.I am running the engine with all orignal injectors, sensors and ignition. The Link system wired in. The engine has the original 60-2 with VR sensor for the crank pos and a hall sensor on the distributor. Now to my problem, I can not get a signal from the VR.It is from the Bosch motronic 2.5 setup and worked just fine before. The VR sensor and the HALL sensor both has a three wire connection. I have wired trigger 1 and trigger 2 to the signal on the sensors. sensor ground to the shield/ground. For the Hall sensor I wired +5V. What am I missing or doing wrong? When I crank the engine I can see no rpm reading. Quote Link to comment Share on other sites More sharing options...
Scott Posted March 14, 2016 Report Share Posted March 14, 2016 To get an RPM reading in the ECU you will need 'Trig 1 Signal' and 'Trig 2 Signal' to read Yes. You can check these in the Triggers/Limits tab of the runtime values window (F12 key to open).If you are not getting Trig 1 Signal saying yes then I would check the values you have entered in the 'Trigger 1 Arming Threshold Table'. If you have these set to high in the 0 and 1000 RPM columns then the ECU may be rejecting the signals as noise. Quote Link to comment Share on other sites More sharing options...
Micael Johannssen Posted March 20, 2016 Author Report Share Posted March 20, 2016 Thank you for the support. I did check the trig 1 and 2 Signal, they said no. I have checked the threshld table. It was at 0.5 and I have tested different values with no luck. I have no error codes active, injector test - all injector fire ok, ign test - I get at ticking noise ok. I cant get the engine to fire. What else have I missed?The VR sensor worked fine with the Bosche motronic 2.5 ecu, so did the hall sensor for the cam pos. If I have wired them wrong, would I get an error code?Br Micael Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 21, 2016 Report Share Posted March 21, 2016 Here's how I would attack this; I would set Trig 2 to "none". Set Fuel mode to "multipoint group". Set Ign mode to "wasted". Then at least that narrows down your diagnostics to only one of the triggers.If you then still don't see RPM, then try swapping polarity on the VR sensor. If it still wont register RPM after these steps then you are probably going to have to get a scope on the crank trigger to see why it doesn't like it.PS. also check ECU hold power is not active. Quote Link to comment Share on other sites More sharing options...
Micael Johannssen Posted March 21, 2016 Author Report Share Posted March 21, 2016 Thanks for the help.I did just that and still no signal. Then I took a close look at my wiring and realised that I had trigger one wired with trigger two cable and vice versa.I changed this and I had signals, both from crank and from cam sensors. A clear step in the right direction. The engine did not want to startI am running a setup with ITB and will not be able to use a MAP or similar. What is the correct settings to run with only TPS, temp and RPM? Quote Link to comment Share on other sites More sharing options...
Simon Posted March 21, 2016 Report Share Posted March 21, 2016 TPS for the main fuel table vs RPM if you can get any form of map signal you can then use this as an overlay table.Be sure to do a timing calibration as timing could be anywhere if you haven't. Quote Link to comment Share on other sites More sharing options...
Scott Posted March 22, 2016 Report Share Posted March 22, 2016 (edited) From what I can see the C20XE is naturally aspirated, so also set the 'Equation Load Source' (in Fuel Main) to Load=BAP.Now you have the triggers reading ok are you getting rpm showing in PCLink? If yes then the next step will be to use a timing light to establish the position of crank, cam and TDC on cylinder 1. You do this in ECU Settings > Triggers > Calibrate. Edited March 22, 2016 by Scott Quote Link to comment Share on other sites More sharing options...
bsh Posted March 22, 2016 Report Share Posted March 22, 2016 Try with -117 in offset. Quote Link to comment Share on other sites More sharing options...
Micael Johannssen Posted March 22, 2016 Author Report Share Posted March 22, 2016 It going forward...I have both triggers saying yes, no trgger errors. I have rpm read during cranking, it doesent show emediatley, takes a couple of seconds then about 200rpm.I even had the engine cough one time. Tested with strobe light and ignition lead for first cylinder. I had steady ignition firing cyl one.Then I stated to fiddle with settings, trigger offset aso...then no more light signal from strobe. I tried the -117 in offset.Gave up on cranking, need to charge the battery. Will give it another try tomorrow. Quote Link to comment Share on other sites More sharing options...
Micael Johannssen Posted March 22, 2016 Author Report Share Posted March 22, 2016 Think I found the reason for the error. I had both ignition 1 and ignition 2 active when running distributor and single coil. Missed to restore this when changing fromsequential fuel during fail search. Quote Link to comment Share on other sites More sharing options...
Micael Johannssen Posted March 23, 2016 Author Report Share Posted March 23, 2016 Hello,Good news, I got the engine running today. Now to the next challenge. Tuning. Is there any good read to do before starting to tune.I have an innovate wideband lambda installed and hope to be able to use auto tune. Br Micael Quote Link to comment Share on other sites More sharing options...
Scott Posted March 23, 2016 Report Share Posted March 23, 2016 Glad to hear you have it running, well done.The PCLink help file contains a lot of information on the settings, and does give some guidance, but is not a step by step guide. One resource you might consider is the G4+ tuning course offered by HP Academy, this is a video tutorial series and we've had a lot of good feedback on it.https://www.hpacademy.com/courses/link-g4-plus-software-tutorial/You are welcome to keep asking questions here as you tune. Quote Link to comment Share on other sites More sharing options...
Micael Johannssen Posted March 24, 2016 Author Report Share Posted March 24, 2016 Try with -117 in offset.Thank´s this saved a lot of time. Do you happen to have an ignition table I could use?Best regards Micael Quote Link to comment Share on other sites More sharing options...
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