Losing signal help

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Mar 7, 2015 | 08:25 AM

Tirefire

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From: El Paso, Tx

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

Mar 9, 2015 | 08:28 AM

ezstriper

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From: fredericksburg va

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

Mar 19, 2015 | 12:30 PM

Tirefire

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From: El Paso, Tx

Anyone else have any ideas??

Mar 19, 2015 | 05:27 PM

LASTLS1

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From: Lombard .IL

Internal or external trigger?

Mar 19, 2015 | 06:38 PM

stevieturbo

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From: Norn Iron

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

Mar 20, 2015 | 09:18 PM

tblentrprz

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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; Mar 20, 2015 at 09:31 PM.

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