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 Nissan Frontier Forums : Problems / Technical
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explorer
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Posted: Nov 06 2011 at 9:38am | IP Logged Quote explorer

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 Quote frontierguy

I suggest you let us know what vehicle!

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08 Frontier SE KC 4X4 6speed
08 KTM 200 XC-W sold
09 KTM 200 XC-W sold
07 KTM 250 XCF-W sold
06 Altima SL!!
Nissan Technician 25 + years
2011 John Deere X720SE
used 07 KTM 250 XCF-W for trail r
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explorer
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Posted: Nov 11 2011 at 11:52am | IP Logged Quote explorer

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 Quote frontierguy

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.

__________________
08 Frontier SE KC 4X4 6speed
08 KTM 200 XC-W sold
09 KTM 200 XC-W sold
07 KTM 250 XCF-W sold
06 Altima SL!!
Nissan Technician 25 + years
2011 John Deere X720SE
used 07 KTM 250 XCF-W for trail r
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explorer
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Posted: Nov 12 2011 at 5:43am | IP Logged Quote explorer

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 Quote frontierguy

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.

__________________
08 Frontier SE KC 4X4 6speed
08 KTM 200 XC-W sold
09 KTM 200 XC-W sold
07 KTM 250 XCF-W sold
06 Altima SL!!
Nissan Technician 25 + years
2011 John Deere X720SE
used 07 KTM 250 XCF-W for trail r
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explorer
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Posted: Nov 22 2011 at 5:31pm | IP Logged Quote explorer

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 Quote frontierguy

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!!!!!!

__________________
08 Frontier SE KC 4X4 6speed
08 KTM 200 XC-W sold
09 KTM 200 XC-W sold
07 KTM 250 XCF-W sold
06 Altima SL!!
Nissan Technician 25 + years
2011 John Deere X720SE
used 07 KTM 250 XCF-W for trail r
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explorer
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Posted: Dec 01 2011 at 11:53am | IP Logged Quote explorer

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 Quote frontierguy

The grounds are round wire ends that attach to the intake
plenum. The NTB is available to Nissan dealers or through
All-Data.

__________________
08 Frontier SE KC 4X4 6speed
08 KTM 200 XC-W sold
09 KTM 200 XC-W sold
07 KTM 250 XCF-W sold
06 Altima SL!!
Nissan Technician 25 + years
2011 John Deere X720SE
used 07 KTM 250 XCF-W for trail r
Back to Top View frontierguy's Profile Search for other posts by frontierguy
 

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