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explorer
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| Posted: Nov 06 2011 at 9:38am | IP Logged
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I got a code P1143 and I googled the code and it said bank 1 sensor 1. So i
replaced the O2 sensor before the cat and the code came back, any
suggestions.
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frontierguy
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| Posted: Nov 06 2011 at 7:20pm | IP Logged
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I suggest you let us know what vehicle!
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'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.
Nissan Technician 25 + years
2011 John Deere X720SE
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explorer
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| Posted: Nov 11 2011 at 11:52am | IP Logged
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Lol sorry, its a 2003 Nissan Frontier Crew Cab 3.3L V6 Non-Supercharged
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frontierguy
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| Posted: Nov 11 2011 at 6:31pm | IP Logged
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If you are not using a GENUINE NISSAN OIL IMPREGNATED air
filter, you should be. Also clean the MAFS w/ approved
cleaner and clean and tighten all engine grounds. If
possible check for voltage drop on the ground side of the
MAFS.
__________________
'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.
Nissan Technician 25 + years
2011 John Deere X720SE
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explorer
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| Posted: Nov 12 2011 at 5:43am | IP Logged
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I use a purolator air filter and I switched the maf sensor with one
from another frontier but the code come back but ill check the
grounds and clean the maf but will the air filter really make a big
difference
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frontierguy
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| Posted: Nov 13 2011 at 8:31pm | IP Logged
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YES!!!!!! Nissan air filters are oil impregnated unlike the
after market filters and a K+N , although oil impregnated,
flows a lot of air, but also a lot of DIRT!!! Do a search.
__________________
'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.
Nissan Technician 25 + years
2011 John Deere X720SE
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explorer
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| Posted: Nov 22 2011 at 5:31pm | IP Logged
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Where are the grounds for the o2 sensors on the manifold,
the guy at Nissan told me to check those and he also said
it could be that the computer needs to be reprogrammed
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frontierguy
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| Posted: Nov 22 2011 at 7:19pm | IP Logged
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The grounds are on top of the intake plenum(2 of them near
the plug wire clips), also clean and tighten the main
ground from the battery to the pass side cyl. head. There
is a NTB99-004B that explains how to perform a voltage drop
test and add grounds between the intake and right cylinder
head for this concern, no reprogram.
PS Don't forget to clean the most important connections=the
battery terminals!!!!!!
__________________
'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.
Nissan Technician 25 + years
2011 John Deere X720SE
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explorer
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| Posted: Dec 01 2011 at 11:53am | IP Logged
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What do the grounds look like and whats ntb99-004b?
Where can I get that?
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frontierguy
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| Posted: Dec 07 2011 at 6:19pm | IP Logged
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The grounds are round wire ends that attach to the intake
plenum. The NTB is available to Nissan dealers or through
All-Data.
__________________
'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.
Nissan Technician 25 + years
2011 John Deere X720SE
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Nissan Frontier Forums : Problems / Technical
Topic: Lean Shift Monitoring
