Losing signal help
#1
Losing signal help
Trying to get some answers regarding an issue that just started happening. The issue ive been getting is that my engine appears to lose signal when I go wot monetarily (1sec) I lose power even hptuners stops logging. All this started when I upgraded to new injectors went from 80lb. to 127 injectors and I also installed the bigger 8.65 crank pulley. Everything seems good under normal conditions even voltage is good. WOT voltage prior to loding signal is about 12.7. Any help greatly appreciated. Thanks
#6
12.7V is not sufficient. Check all power and grounds everywhere, engine, PCM, inside passenger compartment, etc. If all good then hook up a voltmeter to alternator and see what's going on. Measure DC output, I'd expect at least 13.5V. Also measure AC (ripple) output and it should be < .250VAC but more like < .050VAC
Last edited by tblentrprz; 03-20-2015 at 09:31 PM.