The check engine light came on and the dignosis said misfire detected. the code was P0300.
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 ---------------- http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html -------------- http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html ------------ http://howtobyme.blogspot.com/2011/11/diagnostic-code-p1396.html -------------- http://howtobyme.blogspot.com/2011/11/code-p0452.html ------------- http://howtobyme.blogspot.com/2011/11/obd-code-p0172-on-buick-park-avenue.html ------------- http://howtobyme.blogspot.com/2011/11/dtc-code-p0321-on-buick-park-avenue.html ------------------ http://howtobyme.blogspot.com/2011/11/error-code-p0471-on-2007-dodge-ram-3500.html ------------- http://howtobyme.blogspot.com/2011/11/p0304-error-code-on-dodge-neon.html ----------------- http://howtobyme.blogspot.com/2011/11/obdii-scan-is-receiving-no-bus-code.html ----------- http://repairhelpcenter.blogspot.com/2011/11/how-to-clear-obd-error-codes-on-acura.html ---------------- http://vwrepairhelp.blogspot.com/2011/11/diagnosis-and-testing-car-components.html -------------- Part 1. http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura_18.html -------------- Part 2.------ http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura.html ------------ http://schematicsdiagram.blogspot.in/2012/02/obd-code-is-cleared-but-check-engine.html -------------- http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-43-and-71-on-1991.html ------------------ http://schematicsdiagram.blogspot.com/2011/12/code-p0132-on-acura-tl.html ------------- http://schematicsdiagram.blogspot.com/2011/12/p0031-code-on-dodge-dakota.html -------------- http://schematicsdiagram.blogspot.com/2011/12/how-to-get-diagnostic-code-without-obd.html ------------ http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html ------------- http://schematicsdiagram.blogspot.com/2011/12/getting-diagnostic-code-p0016.html -------------- http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html ------------- http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0540-continue-to.html ----------- http://schematicsdiagram.blogspot.com/2012/01/dtc-trouble-code-p0401.html ----------------- http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html ------------- http://technoanswers.blogspot.com/2012/01/diagnostic-code-p0463-on-ford-f250.html ------------- http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html ------------ http://technoanswers.blogspot.in/2012/01/diagnostic-error-code.html -------------- http://technoanswers.blogspot.in/2012/02/p0174-p0037-and-p2197-on-toyota-rav4.html ----------- http://technoanswers.blogspot.in/2012/02/p0352-obd-code-on-toyota-rav4.html ------------- http://technoanswers.blogspot.in/2012/02/error-code-p0402-on-ford-escape.html --------- http://technoanswers.blogspot.in/2012/02/obd-code-p0763-on-lexus.html ------- http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0301p0430-and-p0174.html ---------
Misfire on cylinder 4?
ABS trouble codes for all models?
Diagnostic code P0010?http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0010.html-------------Diagnostic Code P1396?
Code P0452?
OBD code P0172 on Buick?
DTC Code P0321?
Error Code P0471?
P0304 Error code?
OBDII scan is receiving NO BUS CODE?
How to Clear OBD error Codes?
Diagnosis and Testing Car Components?
Diagnostic Trouble Codes list?
Diagnostic Trouble Codes list?
OBD Code is cleared but check engine light will not RESET?
Diagnostic Code 43 and 71?
Code P0132?
P0031 code?
How to get diagnostic Code without OBD Scanner on Pre 1995 cars?
OBD-II Trouble Code P0300?
Getting diagnostic code P0016?
How to Read Codes from Check Engine Light?
Diagnostic Code P0540 continues to return and the MIL light is on?
DTC Trouble Code P0401?
Car misfires and error code P0306 and P0303 is shown?
Diagnostic code P0463?
Check engine light with codes P2195 and P2197?
Diagnostic error code P0121,P0505,P1000,P2101,P2104, P2110,P2135,P2106?
P0174, P0037 and P2197?
P0352 Obd code?
Error code p0402?
Obd Code P0763?
OBD code P0301, P0430 and P0174?
OBD code P0500?http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0500-on-lexus-rx-300.html
-----------This will help.Thanks.
SOURCE: codes P0440 and P0300
the evap can simply be the gaz cap the 300 check for a good spark you may need wire and plug be carefull for those coil they offent defect good luck pierre
SOURCE: catalytic converter still glowing red
When running does the engine shake back and forth (indicating a skip in the engine) also does it rev up freely. If you were to rev it up to 3500RPMS would it be smooth without the engine shaking back and forth? Also the o2 sensor on the front of the exhaust manifold is pretty easy to get at, if you were able to pull that( 7/8") wrench I beleive) you could tell if it were running rich (sooty black color). In the end you could take it to a muffler shop and for very little money have them inspect your cat, without any cutting or welding. a $20-$30 cost at most. I know the fixya wants us to be self suficiant but even i don't mess with small exhaust work because of the benieft of not dealing with it, especially for such a small price. But if its something you wanted to do, I could explain so. A shop can visually inspect the cat, and see if it is clogged with oil, or excessive fuel. At any rate in the end if they do find that you do need a cat, don't buy a GM one, there are plenty of other sources for an aftermarket cat. IF you decided to go that route i know of a few sources that one could be had for pretty cheap ($50-70) for new. Let me know if any of this helps
SOURCE: 2.2 ecotec engine. Code says random misfire. What
did you fix it? if you did what did you do? i have the same prblm thanks!
SOURCE: codes P0440 and P0300
I have a 2005 chevy suburban and it's getting a p0300 code. I replaced the plugs and wires and still have the same problem . It runs rough at idle in gear. What should I check?
SOURCE: 2000 silverado 4.3L V6 has misfire.check engine
mine does similar , ive changed plugs ,wires,cat convertors,fuel filter,2 dist caps. it has no power up a hill or with the ac on.has even stalled out on me on the interstate going up a hill, light starts fashing . only says a misfire, thought maybe air flow cencor?curious what u find out
A code P0300 may mean that one or more of the following has happened:
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders ( 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 (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
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