Help: lb7 cuts out

reeves_mck

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Feb 23, 2012
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Its an lb7 with an edge juice with attitude no matter what I level its set on between half to full throttle it feels like its starts missing it happens rapidly and continues until I let out of the throttle any ideas?
 

S Phinney

Active member
Aug 15, 2008
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Quncy, Fl
Its an lb7 with an edge juice with attitude no matter what I level its set on between half to full throttle it feels like its starts missing it happens rapidly and continues until I let out of the throttle any ideas?

Disconnect the edge and check again. When I had one it would do it in high rpms. Ran a long time like that but eventually it turned out to be a crank position sensor. Never set a code until it stopped running.

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reeves_mck

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Feb 23, 2012
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I changed fuel filter did not change anything took the edge off it ran fine. So I'm plannig on trying another programmer to see if it continues doing it . I dont have a lift pump but I see one in my future with possibly a cp3 ill keep you guys updated
 
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reeves_mck

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Feb 23, 2012
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Well I took the edge off it worked fine on my buddy's truck but now while I'm driving with no programmer it keeps falling on its face like its out of fuel or going down the highway steady throttle it does about a 500 rpm pulse what do you guys think ? I'm just not sure why its not throwing any codes
 

reeves_mck

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Feb 23, 2012
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Well I barley made it home runs like a tractor won't go over 2000 rpm there is 260000 on the cp3 ran codes got p0746 pressure control circuit low p0700 tcm requested millumination and fuel pressure too high
 

reeves_mck

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Feb 23, 2012
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Well I found that the connector to cp3 had a bad connection ran fine for a day then it only had power after 2000 rpm now it has no power no matter how high the rpms are I'm trying to find someone with a computer to check everything without having to go to the dealer