Question about 1998 Nissan Maxima

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Trouble code p1320 fail emission

Replaced coil packs and spark plugs, tune-up day before test and failed please help

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Here's a link to your problem code. P1320 Nissan Ignition Signal

Posted on Apr 02, 2015


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Posted on Jan 02, 2017

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SOURCE: Auto Diagnostic Trouble Code

cORRECT. tHIS CODE DOES DEALs With emmissions. P1400 deals with the EGR valve. In case u are not aware, EGR stands for Exhaust Gas Re-circulation. What really this valve does is that it re-cycles some of the exhaust gases into the cylinder for combustion. The EGR valve might be blocked or has malfunctioned. It is advised that this valve changed or consult with a mechanic who is knowledgeable about this technology. a malfunctioned/dis-abled EGR system will cause the car to fail an emissions test, and may cause the EGR passages in the cylinder head and intake manifold to become blocked with carbon deposits, necessitating extensive engine disassembly for cleaning. So it is advised that u repair this ASAP

Posted on Jan 19, 2009

  • 218 Answers

SOURCE: p1320 trouble code plus

The P1320 code is essentially a coil primary voltage problem. This is traceable using a labscope or accurate DVOM and perhaps you can isolate one or two coils that still work but are close to failure...but there is a nissan service message recommending replacement of ALL coils with updated/improved models to prevent this type of failure. TCS/SLIP is traction control. Most likely you have a speed sensor issue. Be aware, some vehicles can falsely illuminate TCS because of low tire pressure in a single wheel.

Posted on Sep 09, 2009

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SOURCE: nissan frontier 2002 failed emissions test with


Posted on Jan 07, 2010

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SOURCE: p1320 runs smooth no misfire

These engines had a lot of problems with coils, most people just end up replacing all of them. You may find them a little cheaper online. There was a bulletin for broken or worn wiring inside the harnesses that go to the coils so you should carefully check back along the harness to each on, especially where the harness might move when the engine torques over.


Posted on Mar 31, 2010

  • 1 Answer

SOURCE: Cyclinder 3 misfire

air intake leak

Posted on Sep 03, 2010

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Related Questions:

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What would my car to randomly "bog down" for a few seconds while cruising at 80 mph?

Sounds like you need a Tune up and possibly a battery change. Do a battery test, if it fails the test then replace the battery. Change the spark plugs, spark plug wires, and coil packs.

If your vehicle has a distributer then just change the spark plug wires and spark plugs.
(Try the suggestions above first)

Honestly, with the complication of vehicles now a days, Bring it to a shop and have them do the tune up if you don't know how to perform this procedure. Also your MAF sensor will need cleaning and the air filter will need to be replaced.

May 02, 2016 | Cars & Trucks

1 Answer


great question, why not use a real scan tool and scan it
the tools is like $10 (ask)
when cold and damp all bad high voltage ignition system fail.
from the tin lizzy 1920s to 2015, (for the same REASON)
but today the scan tool helps you with that.
my guess the car has never been turned up this decade.? like most here?

FAIL EMISSIONS, sure, if the CEL glows running you FAIL.
in every state in USA, you fail; (this is a USA forum)

2003 wrangler with the 2.5L or what engine? 4.0L I-6 (inline 6 banger)
not posting engine and the talking smog is a hopeless to all but
i can wax , physics and laws or Otto Cycle , generic.

the engine will fail smog for many reasons, Ill ;list some.
top fails.
  1. Engine misfires, (50 causes ) top cause bad spark. not ever tuned up. with spark plugs and wires, (P03xx codes)
  2. EVAP , failure, more DTC error codes, scan it.?
  3. Transmission errors (P07xx codes)
  4. Lazy CAT P042x codes.
  5. dead O2 sensors (any) for any reasons.
  6. lots more, but why must i list them if you can just scan it.

post back with facts and we can go as deep down the rabbit hole
and take the red pill (complexity path)

if engine has COPS get new boots,.with spark plugs
if engine has a 4 wire coil pack, get new wires, and dont mix them.
remove 1 by 1. not mixed.
cops are engines with DIS that use, COIL OVER PLUGS>

the boots are cheap the cops not.
so boots we do, (savvy) first.

Feb 11, 2015 | 2003 Jeep Wrangler

1 Answer

Did not pass emissions test for hydrocarbons

When was You're last Tune up?
Check the Spark Plugs to make sure the Gap is correct. HC is unburned fuel ,Check the Air filter and Replace as necessary,If coil over plugs Make sure to replace the Boots on the coils as they have a tendency to Bleed and wont show a trouble code.otherwise Change the Spark Plug Wires this should Clear You're Problem

Dec 31, 2014 | GMC Cars & Trucks

2 Answers

2008 Cadillac CTS returning P0303 after replacing spark plug and coil pack

Error Code: P0303
Cylinder 3 - Misfire Detected
Possible Cause:
Wiring harness, igniter and fuel injector connectors.
Ignition system. (Spark plugs gaps)
Fuel injector No. 3.
Fuel pressure.
Running out of fuel.
EVAP canister purge valve.
Evaporative emission system.
Low compression, cylinder No.3. (check valve clearance and throttle plate for excessive wear)
Engine control module (ECM).

Feb 27, 2014 | 2008 Cadillac Cts

1 Answer

2001 nissan sentra code P1320

You have a fault on the Ignition Signal, Primary side.
Check the sender unit and connectors for damage/bad connection.

Sep 14, 2017 | 2001 Nissan Sentra

1 Answer

I have a 1998 Nissan Maxima GLE, I Failed the Emission Inspection (DTC) Diagnostic Trouble Codes of "P1492","P1105" What these Codes exactly? mean

A code P0300 may mean that one or more of the following has happened:
  • Faulty spark plugs or wires
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector(s)
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Stuck/blocked EGR valve / passages
  • Faulty camshaft position sensor
  • Defective compute
  • P1105MAP/BARO Pressure Switch Solenoid Valve
  • Check and clean the MAP sensor, or replace.
  • P1492EVAP Canister Purge Control/Solenoid Valve (Circuit)
  • Replacing the purge solenoid will clear code P1492 This should also clear code P0300 as well.

Oct 16, 2012 | 1998 Nissan Maxima

1 Answer

I have a 2001 Chevy Venture. The vehicle is hard to start when it is cold or after it has been running. Once it starts,itruns fine. Also has a engine code lean bank one. I know one of the issues could be...

I have never heard of a major tune-up

All vehicle tuning has been done by
on board computers since 1980
some 30 years

Spark plug wires last the life of the vehicle
They only get replaced when they fail.
I had 1 wire fail in 46 years,personally

You do not have both an Ignition Module
as well as Coil Packs. They are installed
in two different systems

Any dash light you get & again they have
been there for 30 years,you retrieve any codes
within a couple days,diagnose code issues first
& repair. You have O2Sensor Codes
They wouldn't effect hard start problems

I would check fuel pressure with a gauge
Also Fuel Pressure Regulator

Vacuum Leaks
At least clean the MAF Sensor
Check TPS Sensor

Basically you need your vehicle tested in all

There is a serious misconception that a
tune-up ,spark plugs etc are a cure all

I don't even start there when diagnosing
anything. You could throw away 2 plugs
& it would still start

I want to see what does work & how

Spark Plugs & other items you can get
from the vehicle history & past maintainance

May 27, 2011 | 2002 Chevrolet Venture Passanger

2 Answers

I failed the emission test and I also went to get an check engine light test from Auto Zone. I received the codes P0300, P0301, P0302, P0303, P0304 and the results that I received from Auto Zone was valve...

A code P0300 may mean that one or more of the following has happened:
Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer

Possible Solutions:
If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.

Hope helps.

Apr 19, 2011 | Lexus GS 400 Cars & Trucks

1 Answer

I have a p0303 trouble code on my 1999 Passat. Missfire on #3 cylinder. Coil is ok, I'm lost.

coil packs very prone to failing... check compression for good readings (at least 100 - 120psi) if okay try new spark plug as these can fail under load and its the cheapest part to replace to eliminate. if misfire still present swap cylinder 3 coil with cylinder 1 coil and see if fault code moves to cylinder 1. hope this advice helps

Jul 17, 2010 | 1999 Volkswagen Passat

1 Answer

Cylinder 1 is misfireing. Do I need a tune up?

a tune up will not likely fix that. you need to find out why it is doing that. the most likely source is that the coil pack is failing. a quick test is to pull the spark plug lead off off the coil pack for #1 cylinder. if it's failing the spark will be weak or non existant. were rubber gloves when you do that to avoid getting zapped.

also if there is white smoke coming from the exhaust pipe you may have a blown head gasket. find out first why it's not working right before you spend money on the tune-up. which now a days consist of just changing the spark plugs and maybe wires as the engine is computer controlled.


Nov 27, 2009 | 2000 Nissan Maxima

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