Rich52

Follow up - I persevered with the Ign5 (Aux) output to drive an SSR and as you said it has a weak pull up - found it was able to drive about 125 microamps to 5.5V. I changed my MOSFET SSR input to a 56kohm to ground and it now looks good. Added a 10nF capacitor as noise suppression for good measure . I'm running a 10Hz PWM output. Thanks again.

Perfect Adam - many thanks Rich

Is there a list of output pull up configurations for an EVO 7 G4X plug in ECU? I see some with open collector, some pull ups and some with fly back diodes buts it not clear which is which. I'm currently trying to use Ign5 to drive to 12V but that is only showing 5V o/c so looks like an "open collector"?

Useful info on the use of regulated 12V. I wanted to use battery and chassis ground for my application so am using the zenor to stablise the pwm input to my device (driving a Geartronics gear display). I've now added a pull up to batt and the analog output seems to be plenty stable enough although more testing is required Thanks again. Rich ps perhaps something to consider for the manual is a bit more detail of the various drive circuits and modes?

Thanks Adam, confirms what I thought. I guess it will be happy being pulled up to 12V as its essentially just an open collector ouput? ps recently upgraded from V44 to G4X and loving the addional features!

Using a G4X plug-in for EVO8. Please can you confirm what pull-up resister to what voltage the Ign 5 output uses when used as a GP PWM output set to active low. Although the manual referes to it as an AUX out in this case (1k5 to 12V) I get the impression it isn't this? I see the Ign out mode drives 20mA to only 5V? If there isn't a pullup can I externally pull up to 12V OK. To clarify I'm driving a 5V zener diode hoping to clamp output to a 5V PWM then onto an RC filter/integrator. I'd assumed that the output was simply pulled up to battery volts with a 1k5 resister but it isn't reachimg the 5V when in the high state. Thanks Rich

Sorry didn't realise this is i series section - my bad! Definately V44 according to this. It is a Plugin rather than standalone. I did see "bottom of board" but it wasn't totally obvious. The board is mounted on a carrier board and my picture is the outside surface. The inside surface has all the large components. "Outside" "Inside" Unlike the drawing you sent of the mod there is only one connector on the daughter board which is the USB. The signal and CAN/Serial connectors are on the motherboard (carrier). Thanks

Hi Adam Just got around to setting up the CAN. You sent me the mod details but please could you check attached photo of my plugin board. Its not the same layout as the picture you sent but I think the marked section below is the correct section. Of course wanted to double check before doing mod. Note also the left most component to delete appears to be a resistor - is that correct? Also is the CANBUS connection also available on the PC connection cable or is that only serial/USB? I have the pinout for the CANBUS/RS232 connector so I'm assuming I have to bring CAN out from there instead. Thanks Rich ps the socket bottom right is the PC USB connection.

I use NGK Spark Plugs Iridium IX BR8EIX type 5044. Having dug around I've seen these advertised as "5k resistor" plugs so maybe I'm flat wrong on this. Certainly not routinely called resistor plugs here abouts - are these type what you are referring too? ps any chance of CAN BUS mod details for my pre s/n 10k V44?

Sorry to add another query on a slightly(!) different topic. Is it possible to get details of the CANBUS hardware mod needed for pre 10000 s/n V44 (mine is 4963). I'm an Electronics Engr so very happy to do it myself. Was thinking this would give me an option for long term logging as well as extra dash data. Many thanks Rich

Strong advice! However I've never run resistor plugs and never had mis-fire problems so what is the benefit and how does it relate to my core issue? I'm running 580BHP so less spark from a resistor plug is not ideal! Did you manage to check out the log file - anything interesting? Thanks

Thanks Adam. I didnt think I had a log file showing errors but looking back I have found one that is attached. There are two Trig Err events taking total to 6 in this log. The second one where count goes to 6 corresponds to a fuel cut event. I also see that the Idle Target Error goes to -1000 for a period of time which is a bit odd?? However the rpm logged looks OK. Can you see anything else to give a clue? I should also add that is was before we changed to the "correct" trig mode for my Evo 7. On resister plugs these are not recomended by my tuner so not an option to try really. Log 8-06-20 12;20;30 pm Donington Laps.zip

Hi Adam An update on this. I recently had my tuner change to the correct Evo 7-9 pattern. However having run it for a while I am still seeing occasional errors that sometimes result in a ignition cut. To give you an idea the ECU stat has counted about 70 errors over 3 track days but a noticable cut has probably only happened 4 or 5 times. The sensors are quite new and my tuner looked at the crank sensor wheel and said it looked OK too. Any other ideas please? Thanks Rich

Thanks Adam. Given its been working for a long time like that what would advantages be of changing? (ie better accuracy/stability/noise tolerance etc). Could this be cause of Trig Errors I've seen? I see the "Filter level" is set to 2, I couldn't find any details of the what the levels actually do so hard to know what interaction this might have too.

Interesting, it is indeed an EVO7. It's always been mapped that way by an experienced mapper! What effect will that have and is it simply a case of changing the mode setting or would it need a complete remap for timing etc.