Hello
I have an assembled ecu that i purchased about 2 months ago from Vems, I have got the Car running now, but only on 3 cylinders (out of 4).
I have tested the coils, plugs, power , earth and wiring and they are all ok. I have also checked the outputs with a test light and pins 11,12 and 33 all work OK (cylinder 4,3 and 1) whereas pin 35 doesn't (cylinder 2). I have also tested them using the test mode in vems tune which gives the same result.
What will be the best thing to check next (transistors?) I have had a look inside the ecu and couldn't see any damage
This is the spec of the ecu:
1 x ECU VEMS V3 (v3.6)
1-wire interface no
EGT input 1
ETC BridgeOutput_Interface 0
Flyback HighZ-only 30V flyback
Hi-side PFET outputs 4
ignition driver 4
Knock input channels 1
LCD connection yes
MAP connection 300 kPa simplenipple
mounting-style flanged case
primary_trigger EC36/27 VR
secondary_trigger EC36/13VR
Service ASAP
Special requests no
withSDcard no
Firmware version V3 1.2.31
I am using SAAB 4 pin logic level coils on a B207 motor.
Thanks, James
I have removed one of the IGBT Transistors and converted it to a logic level output for the coil and this has solved the miss fire.
I used this topic as reference for anyone else who may have this issue http://www.vemssupport.com/forum/index.php?topic=1841.0 (http://www.vemssupport.com/forum/index.php?topic=1841.0)
The original output is still not working