2002 Frontier OBD II Codes
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cormcc1982
- Posts: 1
- Joined: Thu Aug 13, 2015 3:14 am
- Car: 2002 Nissan Frontier 3.3 non-sc
2002 Frontier OBD II Codes
I have a 2002 Nissan Frontier 2wd, 3.3 non-sc that originally had two codes a p0132 and p0154 (both for oxygen sensors, post replacement of all 4 sensors) I found online about a TSB referring to adding a ground strap to the intake manifold and the cyl head, performed this fix. Now i have 3 new codes P1148, P0171, and P0174 that have come up since that repair.... PLEASE HELP!!!
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sx moneypit
- Posts: 8911
- Joined: Wed Aug 26, 2009 2:54 am
- Car: 2010 Nissan 370Z
1986 Toyota MR2 - Location: Memphis,Tn.
Re: 2002 Frontier OBD II Codes
Moved this to the Frontier forum.
Welcome to NICO!
Welcome to NICO!
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califrontya
- Posts: 7
- Joined: Mon Aug 17, 2015 5:55 pm
- Car: 02 sc fronty
Re: 2002 Frontier OBD II Codes
First things first...if you made a change, and now notice problems, undo your change and see if it goes away.
-Aside from the simple sanity check above, check your inlet air tube for leaks past the maf...usually leads to lean conditions (two of your codes indicate lean on both banks).
-Badly cracked manifolds (common pre-2003) could also cause lean errors. Also check that there are no leaks around the o2 sensor bungs, and that the egr tube is not leaky.
-Since you are also showing a circuit malfunction on bank1 (passenger side) i would look at the ecm ground (top of intake manifold) to make sure it had a good connection. I've also had brand new o2 sensors that were not even crimped/connected at the plug connector (denso...never buying again). So in addition to checking that the plugs are pushed in tight, also make sure thins inside are connected to the wires.
-Aside from the simple sanity check above, check your inlet air tube for leaks past the maf...usually leads to lean conditions (two of your codes indicate lean on both banks).
-Badly cracked manifolds (common pre-2003) could also cause lean errors. Also check that there are no leaks around the o2 sensor bungs, and that the egr tube is not leaky.
-Since you are also showing a circuit malfunction on bank1 (passenger side) i would look at the ecm ground (top of intake manifold) to make sure it had a good connection. I've also had brand new o2 sensors that were not even crimped/connected at the plug connector (denso...never buying again). So in addition to checking that the plugs are pushed in tight, also make sure thins inside are connected to the wires.