what is U4 voltage pins , please ?
especially for pin 5 and 7 ?
cyrilou60230 wrote:so i have a problem
with processor unplug and jimstim :
U5 pin 2 = 5v , pin 4 = 5v , pin 5 = 0v and pin 7 = 0v
so i check voltage grounded pin 2 and 4 and 12v et pin 5 and 7 ok with CPU unplug
so with CPU , the CPU ground pin 2 and 4 or not ?
thanks to support me
so we can say U4 is ok ?
U4 is for injector 's bank but injectors pulse are link with rpm varation , i'm right or not ?
so U4 and U3 ( hall coils ) work together , no ?
because at U3 with cpu i have only 5 v at pin 5 and nothing change moving rpm
i have no light at my MS : no D14 + D15 + D16 and no light at my stim ( FP + FIDLE + INJ1 + INJ2 )
i have communication with the MS and CLT + MAT + TPS + O2 + MAP ( stay at 150kpa ) work well
i put the pin 5 of U3 to ground like for U4 and i see rpm + pulse with on my computer and D15 + D16 light
what do you think of it ?
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