I have a 2011 GMC Terrain 3.0L V6 SLE. I'm getting a P0302 error code using my OBD II reader. I diagnosed the code as a misfire in Cylinder #2. Where is the location of Cylinder 2?

Fuel injector may be restricted or hung open .

Kimberly, Change the spark plug, if you have not done so. Check the links below for a long list of what could cause misfire.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

http://www.obd-codes.com/p0302
P0302 OBD II Trouble Code
Diagnose Engine Misfire

Fritz, Clear codes, Plugs and coils try switching them around, not using the same cylinder, to see if code changes to different cylinder. this would help diagnose bad coil or plug. See links below for full instruction. I have had this code come up because of a bad/dirty fuel injector also. Last link tells what other reasons code could be thrown.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Chevy Trailblazer misfire DIY diagnosis step one p0301 p0302 p0303 p0304...

Trailblazer P0301 Is the coil bad

P0302 OBD II Trouble Code

Need to get a can of gumout and with it idling spray around the top of the upper plenum to see if you have a vacuum leak if you have a leak it will either idle up slightly or kill the engine very very common on the 3.0 Taurus ,little more information would be helpful like how many miles are on the car

P0300 is a Random Misfire
P0302 #2 Cylinder Misfire
U1120 The code U1120 means, lost wheel distance message. The powertrain control module(PCM) is not
receiving a signal from the anti-lock brake module. The problem could be a short in the bus circuit,
the PCM or the anti-lock brake module. This type of problem is best diagnosed by the dealer or a
local shop with the proper diagnostic scanning equipment. Hope this helps.

For OBD code problems check the list of help links below. Click the link below to go through its procedure.--------------Diagnostic Code P2195?http://schematicsdiagram.blogspot.in/2012/02/diagnostic-code-p2195-on-toyota-avalon.html--------------Diagnostic code P1330?http://technoanswers.blogspot.in/2012/02/diagnostic-code-p1330-on-kia-2wd.html------------Diagnostic code P0700, P1330, P1121?http://technoanswers.blogspot.in/2012/02/diagnostic-code-p0700-p1330-p1121-on.html-------------shows error code P1330?http://technoanswers.blogspot.in/2012/02/2003-kia-sorento-shows-error-code-p1330.html--------OBD code P1330?http://technoanswers.blogspot.in/2012/02/obd-code-p1330-on-2003-kia-sorento.html------------OBD code P01300?http://technoanswers.blogspot.in/2012/02/obd-code-p01300-on-toyota-rav4.html--------------OBD code P0768?http://repairhelpcenter.blogspot.com/2012/01/obd-code-p0768.html------------Evaporative Emissions System codes details?http://schematicsdiagram.blogspot.com/2011/11/evaporative-emissions-system-codes.html--------------- Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

----------------

Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

--------------
ABS trouble codes for all models?

http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html

------------
Diagnostic code P0010?http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0010.html-------------Diagnostic Code P1396?

http://howtobyme.blogspot.com/2011/11/diagnostic-code-p1396.html

--------------
Code P0452?

http://howtobyme.blogspot.com/2011/11/code-p0452.html

-------------

OBD code P0172 on Buick?

http://howtobyme.blogspot.com/2011/11/obd-code-p0172-on-buick-park-avenue.html

-------------
DTC Code P0321?

http://howtobyme.blogspot.com/2011/11/dtc-code-p0321-on-buick-park-avenue.html

------------------

Error Code P0471?

http://howtobyme.blogspot.com/2011/11/error-code-p0471-on-2007-dodge-ram-3500.html

-------------
P0304 Error code?

http://howtobyme.blogspot.com/2011/11/p0304-error-code-on-dodge-neon.html

-----------------

OBDII scan is receiving NO BUS CODE?

http://howtobyme.blogspot.com/2011/11/obdii-scan-is-receiving-no-bus-code.html

-----------
How to Clear OBD error Codes?

http://repairhelpcenter.blogspot.com/2011/11/how-to-clear-obd-error-codes-on-acura.html

----------------
Diagnosis and Testing Car Components?

http://vwrepairhelp.blogspot.com/2011/11/diagnosis-and-testing-car-components.html

--------------
Diagnostic Trouble Codes list?

Part 1.

http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura_18.html

--------------
Diagnostic Trouble Codes list?

Part 2.------

http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura.html

------------
OBD Code is cleared but check engine light will not RESET?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-is-cleared-but-check-engine.html

--------------
Diagnostic Code 43 and 71?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-43-and-71-on-1991.html

------------------
Code P0132?

http://schematicsdiagram.blogspot.com/2011/12/code-p0132-on-acura-tl.html

-------------
P0031 code?

http://schematicsdiagram.blogspot.com/2011/12/p0031-code-on-dodge-dakota.html

--------------
How to get diagnostic Code without OBD Scanner on Pre 1995 cars?

http://schematicsdiagram.blogspot.com/2011/12/how-to-get-diagnostic-code-without-obd.html

------------
OBD-II Trouble Code P0300?

http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html

-------------
Getting diagnostic code P0016?

http://schematicsdiagram.blogspot.com/2011/12/getting-diagnostic-code-p0016.html

--------------
How to Read Codes from Check Engine Light?

http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html

-------------
Diagnostic Code P0540 continues to return and the MIL light is on?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0540-continue-to.html

-----------
DTC Trouble Code P0401?

http://schematicsdiagram.blogspot.com/2012/01/dtc-trouble-code-p0401.html

-----------------
Car misfires and error code P0306 and P0303 is shown?

http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

-------------
Diagnostic code P0463?

http://technoanswers.blogspot.com/2012/01/diagnostic-code-p0463-on-ford-f250.html

-------------
Check engine light with codes P2195 and P2197?

http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html

------------
Diagnostic error code P0121,P0505,P1000,P2101,P2104, P2110,P2135,P2106?

http://technoanswers.blogspot.in/2012/01/diagnostic-error-code.html

--------------
P0174, P0037 and P2197?

http://technoanswers.blogspot.in/2012/02/p0174-p0037-and-p2197-on-toyota-rav4.html

-----------
P0352 Obd code?

http://technoanswers.blogspot.in/2012/02/p0352-obd-code-on-toyota-rav4.html

-------------
Error code p0402?

http://technoanswers.blogspot.in/2012/02/error-code-p0402-on-ford-escape.html

---------
Obd Code P0763?

http://technoanswers.blogspot.in/2012/02/obd-code-p0763-on-lexus.html

-------
OBD code P0301, P0430 and P0174?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0301p0430-and-p0174.html

---------
OBD code P0500?http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0500-on-lexus-rx-300.html
-----------This will help.Thanks.

For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- OBD-II Trouble Code P0300? http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html
---------- Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

-----------
Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

-----------
While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

------------
Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

--------------
Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

-----------
Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

----------

This will help.

Thanks.

For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- OBD-II Trouble Code P0300? http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html
---------Car misfires and error code P0306 and P0303 is shown? http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html
-----------
Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

-----------
Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

-----------
While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

------------
Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

--------------
Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

-----------
Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

----------

This will help.

Thanks.

P0302 is a misfire in cylinder #2. When was the last time you changed spark plugs? That's the most common cause of a misfire.

mass air and tps would be 2 most common causes.