Rob Humphris - Cambridge, UK.
Big problems with MattJ's install.
Matt reported erratic spark on cranking, and then no spark. We checked the wiring, there is continuity between power and the EC36 pins 33 and 34 (coil 01 & 02) when plug is removed from unit and probed.
Also there was an issue with the fuel pump relay, when it was set to p259 channel 5 the fuel relay did not switch to prime the system. When the relay driver was changed to INJFET the relay primed okay. After cranking the relay KEEPS RUNNING until the unit is switched off!
Double (triple-) check GenBoard/Manual/GroundConnections, also check flyback (EC36pin23 connected to injector common +12V) just to be sure.
- If primary trigger is VR, than it can be triggered with very low amplitude signal/noise (unless the engine is running when the signal pushes the arming threshold high).
- A 20k pullup on the VR signal (EC36pin27) to +5V usually fixes this.
- But it usually only happens when the ground system is not OK.
- measure voltage on the VR-input (controller powered, engine off)
- measure ohmage of the VR-sensor (usually 450..1200 Ohm)
I have asked Matt to send the unit back to me so that I can bench test it. Its a pity as the customer has had all manner of issues with the ALS and its not looking good :(
Model is a 4+4 serial number 638
http://vems.hu/www.vems.co.uk/VEMSConfigs/configMatJNoSpark.txt
http://vems.hu/www.vems.co.uk/VEMSConfigs/tablesMattJConfigured.txt
Due to public demand the working megaloader file is available for download:
http://vems.hu/www.vems.co.uk/VEMSWinTools
MembersPage/PhatBob/ALSConfigFix
http://www.vems.hu/wiki/index.php?page=EasyTherm
note that only the boards without the AVCC mod use the _287 files. The rest use files which end with _256
MembersPage/PhatBob/BoostControl - Working out the correct connection and configuration for the webshop pneumatic valve.
WebshopIgnitionOptions - explains the webshop ignition coil options
As requested on AFreshTiny page.
AFreshTiny 5A control.
It would be good if the 5A control could be activated in a similar way to the Genboard Misc outputs.
Trigger on/off on:
- Lambda - so that the system can turn on a 5th injector or warning light.
- EGT - to trigger water injection, 5th injector, turn off boost solanoid or trigger a warning light)
- Analog Input - to set on off points with either boost or tps - would work well as a 'soft' TPS switch to turn on n2o systems or any of the above suggestions.
Currently Developing
Working on a specific start-up guide for customers who've had their VEMS installed or bought a wiring loom
http://vems.hu/www.vems.co.uk/VEMSLoom/LoomGuide.doc
MembersPage/PhatBob/ToyotaFitting
MembersPage/PhatBob/InjectorNotes
Compulsory
MembersPage/PhatBob/PurchasePage
Previous Problems Worth Remembering
MembersPage/PhatBob/MagnettiMarelliSensorProblem
Handy URLs
A list of Ecu Sensors and their functions
http://www.pgmfi.org/twiki/bin/view/Library/EcuSensors
A fairly good list of Japanese car's ECU pin outs