Hi, This is my first post here ever...
Couple of days ago I tested my fuelpump output on my VEMS V3.6. But then i didnt know much about the P259 chip. What i did was grounding 2 relays on ch5 P259 PIN15. That worked out just fine for 5 times.... then That channel 5 output was toast..
I changed to Channel 7 on P259 And my pumps started after turning the key. But again that channel also was toast.. I thought to myself WTF is this...? Then i turned to some ppl inte forums and got explained that i need a diode for those outputs.. I got the advice to cut the P259 chip away and so i did.
Today I made some new testings. I connected my VEMS on my workbench to a 12V Mascot supply and all the nessecary grounds were also connected.. Then I assigned output INJ ch5 to the fuel pump and burned that to ECU.. But i cant measure that anything happens with my multimeter.. I measured between the ground and the output and got 0V. Then i measured between 12V supply and the output and got appr 12V.. couldnt se that anything happened.. I have made the setting so that the pump shall run for 10s after turn key.. but nothing changes status..
Now I wonder if i measure this correct with the multimeter or if I have messed my box upp totally.. Because i got this to work with P259 but not with the INJ or the IGN channels ? :S
I feels like the unit has hanged up it self or someting.
I also want to add that i have pulled the card out of the box now and cant see or smell any sign of toasted curciuts..
system data
Engine: Audi 5cyl 20V
Prim Trigg: VR
Sec Trigg: Hall
Mainboard: V3.6
Firmware: Ive tried diffrent hmm. 1.0.73 then 1.1.27 then 1.164 then 1.1.60. (could this be the problem i dont know wich firmw to use
)
Battery placed in the rear with no individual suppply to ECU..(can be a weak point)
All grounding are soldered togheter accoring to manual
Thankfull for all help
// Jim