P0327 Knock engine code - Nissan Xterra Forum
Thread Tools Display Modes
post #1 of 3 Old 02-29-2012, 09:27 PM Thread Starter
Join Date: May 2010
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2002 Xterra
P0327 Knock engine code

2002, no supercharger, got P0327 knock engine code.

No lights on dash. Car seems running fine, performance, etc.

Question: Will this code cause to fail vehicle inspection ?

Delawaredave is offline  
2002 Xterra
Sponsored Links
post #2 of 3 Old 02-29-2012, 09:52 PM
xtacular's Avatar
Join Date: May 2010
Location: Washington
Posts: 5,824
Mentioned: 1 Post(s)
Tagged: 1 Thread(s)
Quoted: 74 Post(s)
2002 Xterra
You'll have to find out what your inspection entails. I think after 1996 where I am they only check if your MIL light is working, in which case you would be fine.

2002 Super Black 5 Speed 4x4
Lift/Suspension: AC Shackles and UCAs, Bilsteins, 2" BL
Armor: front ARB w/ XRC-9.5 w/ synthetic line, rear Skid Row bumper
Steering: Bandit4x4 IA bushings, AC HD TRAs, Calmini IAB; Moog TREs; 555 centerlink
Wheels/Tires: 33x12.5x15 Goodyear Duratracs on desert runners
Performance: K&N intake, Doug Thorley headers, Magnaflow muffler
Electronics: backup camera, Pioneer head unit, JBL 770w amp, JL 12" W0, front Infinity Reference components, rear Sony Xplods
xtacular is offline  
2002 Xterra
post #3 of 3 Old 02-29-2012, 10:23 PM Thread Starter
Join Date: May 2010
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2002 Xterra
They connect a code reader where I am - but I do not think all codes matter.

Below are criteria - looks like only matters that "check engine" light is off and system is working. A code that does not trip "check engine" light does not matter ?


Q. How do I pass the OBD II emission inspection?
A: There are two basic steps to the OBD test:

With the key on and the engine off, the Malfunction Indicator Lamp (MIL) is checked to verify that it works; and,
A cable is attached to the on-board computer connection (called a Data Link Connector or DLC) that checks the OBD system status.

Three pieces of information are downloaded from the vehicle:

The emissions MIL command - on or off; and,
Which fault codes are stored; if any, and,
Readiness monitor status.

Essentially, three things must be satisfied to pass the test:

The MIL must illuminate with the key on and engine off; and,
The MIL must be commanded off by the OBD system; and,
Readiness monitors must be completed.

You can easily verify that you will pass the 1st criteria by confirming that the MIL bulb lights-up when the key is turned to the full on position without starting the engine. Then start the engine and see if the MIL stays on. If it is on, you will fail the 2nd criteria, so your vehicle must be repaired before you can pass the test. You will likely pass the 3rd criteria unless your vehicle’s battery has been recently disconnected, or a technician has recently cleared fault codes.

Last edited by Delawaredave; 02-29-2012 at 10:27 PM.
Delawaredave is offline  
2002 Xterra

Quick Reply

Register Now

In order to be able to post messages on the Nissan Xterra Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Forum Jump

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

For the best viewing experience please update your browser to Google Chrome