AngelPowy

Hi, I was asking myself if it’s possible to wire an aem wideband gauge to G4+ link extreme using RS-232? The fact is that the aem gauge I have only use 1 wire output signal to efi and the engine ground. So the ground can float as the ECU does not use engine ground to compare with analog input. I think as rs-232 is a bit transfer protocol it may be more reliable and give the ECU better AFR reading. I know that link extreme can be wire to use rs-232 so I do think that it’s doable. Does somebody already tried it?

Hi and thank you again for your help. The bosch 211 I bought was defective and I got a new one. Now car start and run well without timing drift. Time to have fun now!

Ok so my spark edge was wrong. I did base timing again on the car but 2 output was not working so car did not run well. Finally i did wiring it wrong ( without external igniter again) i lowered dwell to 0,4ms and no more timing drift. But how bad this erratic wiing is nefast for the Ecu?

Stupid question, I did wire input to link ign 1 2 3 and 4 and output to coil. Spark edge set to rising edge. Was I wrong or not?

By bosch you mean 0 227 100 211 module I think? I will try to get this one to see

Hi, first of all Merry Christmas to you. Let me thank you twice for your precious help. I did not suspect coil at any time. We are going to order the external ignitor to finish our standalone ECU setup. Do you have a preferred external ignitor or I can take whatever I want? Best Regards Guillaume

Ok If I correctly understand you actually coilpack is wiring wrong and I should add an external ignitor between the ecu and the coilpack. But how did car firing till now? And can this low voltage coil driving cause this delay ( much effort to produce spark maybe?)

Thos signal os the output of the stock ecu. I’m not sure if you understood me. So I still’need an external ignitor?

maybe changing risind edge by falling edge and add 360º to trigger offset?

Thank you for this answer. I assue you are dealing with trigger 2 sync mode and it's already on "cam level". And yes I Do think that it has buil-in-ignitors. I give you a pic of the coil stock signal at idle if it can provide you some information. 5V/div and 1ms/div Ps: Additionnal Info on the coil there is 6 pin +12v and ground and 4 signal.

Here is a picture of the trigger scope.

I forgot to give you a pictures of the coilpack: http://www.migweb.co.uk/gallery/data/509/DSCF0071.JPG

I did one when I was wih the car (he car is in a garage far from my house), I’ll post it tonight

Yes is vauxhall Z20 that I am using. And I am using stock Z20 coil with 1.8 ms dwell at 14v

Hi, I am currently working to mount a G4+ xtreme black ecu on a Z20let engine with stock Crank sensor. But I have lot of timing drift on the car. when I do calibrate with timing locked to 10*, It's ok at 1000 RPM it go to 0* at 2000 RPM -10 at 3000 and so on.. As the sensor is a vr one, I thought about polarity and I tried in both polarity but it does not seems to solve the matter. Do you have some idea of what goes wrong? Best Regards

When I wired it, I did follow the stock ECU pinout. But I tried to make an on/off output with it and a pwm output nothing to do. I think the signal is maybe a bit more complex than a simple square cyclic one.

Thank you for your answer. I don't know what the factory signal looks like, this is what I'm searching. Do you have an idea about how I can find such information?

Hi everyone, I'm actually mounting an G4+ Xtreme ECU on a friend's astra G 2.0T. Engine is starting, correctly fuelling and ignition is OK. But we are facing one problem. His fans always run when engine start at full speed. Actually the matter is that we don't know how to make G4+ ECU to dial with the fan's ECU. I don't think that they dial via CAN-Bus. Does anybody know how to solve this? Best Regards