Tirefire

iTrader: (1)

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

ezstriper

which signal ? we have signal loss between cam and crank sensor...non resister plugs were making that worse..

Tirefire

iTrader: (1)

Anyone else have any ideas??

LASTLS1

iTrader: (7)

Internal or external trigger?

stevieturbo

So is there any particular signal you're referring to ?

tblentrprz

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