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2006 Nissan Frontier 4.0 DTC P300 Forums > > 2006 Nissan Frontier 4.0 DTC P300 2006 Nissan Frontier 4.0 DTC P300
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Frontier Nissan Frontier/HB/Truck Discussion Forum

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Old 03-30-2019, 08:35 AM
peanuts1daddy peanuts1daddy is offline
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2006 Frontier Crew Cab
 
Join Date: Mar 2019
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Thumbs down 2006 Nissan Frontier 4.0 DTC P300

Started out with P0300, no power on acceleration, I have replaced plugs, coils, pcv, air filter, injectors, and OSB2S1. vaccum steady at 15. shrftb1(-3.1) ltftb1(9.4) shrtftb2(10.4) ltftb2(9.4), O2B1S1v(0.2) shrtft(-7.8) O2B1S2v(0.5) shrtft(N/A) O2B2S1v(0.6) shrtft(10-14) O2B2S2v(0.4) shrtft(99.2). Engine still has no power and P0300 continuses to show even after clearing codes
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Old 04-02-2019, 11:45 AM
smj999smj's Avatar
smj999smj smj999smj is offline
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2006 Pathfinder
2003 Frontier King Cab
2003 Frontier KC SVE 4x4
 
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Make sure fuel pressure is within spec (50 PSI), have an exhaust back-pressure test performed to eliminate a restricted or clogged converter, and if that all passes, I would replace the camshaft and crankshaft position sensors with OEM parts. Sometimes one will fail but won't trigger a code yet still cause performance issues.
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