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I have a 2002 Winnebago / Freightliner 32' with 5.9 Cummins…

I have a 2002 Winnebago...
I have a 2002 Winnebago / Freightliner 32' with 5.9 Cummins 45k miles- on a good grade the engine power skips or drops for a second and the engine light momentarily comes on. It almost feels like the trans slipped for a second or so or the ignition was shut off for a second. Codes that appear are
SPN1078 count _ unknown
FMI- 8 abnormal frequency or pulse width or period
SPN 1078 engine fuel injection pump speed position sensorany ideas what to check ?Thanks***** *****
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Answered in 1 hour by:
2/2/2019
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,613
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
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Hello, My name is***** am a Cummins certified tech, I seen that your question had been unanswered, Do you still need help with this? Thanks

Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,613
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified
Mike Mcmillan and 87 other Medium and Heavy Trucks Specialists are ready to help you
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Customer reply replied 3 years ago
no answer yet - its a 275 hp w 2000 Allison 5 speed
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 3 years ago
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Mike Mcmillan
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,613
6,613 Satisfied Customers
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

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