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Without all the information on what year, make, model and engine. And without more facts and a better description. My advise is to check it this way. Do I have compression the same or within twenty pounds of the other cylinders. If no fix compression problem. I don't know if its coil over plug or what type ignition but you need good spark plugs and secondary ignition for that cylinder to make it fire and contribute like the other cylinders. If thats good then check for fuel problem, bad injector or electrical control to injector. There are other variables but I would start with that and if you need further help repost. Good luck
The P0302 code means that the cylinder 2 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 2. If the problem persist more tests needs to be done to diagnose problem, see "Possible Causes"
- Faulty spark plug 2
- Clogged or faulty fuel injector 2
- Faulty ignition coil 2
- Fuel injector 2 harness is open or shorted
- Fuel injector 2 circuit poor electrical connection
- Ignition coil 2 harness is open or shorted
- Ignition coil 2 circuit poor electrical connection
- Insufficient cylinder 2 compression
- Incorrect fuel pressure
- Intake air leak
more than likely your spark plugs they should be changed every 60,000km
This video is to show how to do a compression test, but it will help with dis-assembly, and shows where all parts are located. The only thing I didn't see, was removal of the center cover above the plugs, ans coils. Kia Sportage 2001 Compression Test Definitely a help for plug, and coil change on 2001 Kia Sportage.
Take it to another shop and have them do a compression check. If the compression is low, you have found the problem. If the compression is the same as the other cylinders, trade the fuel injector at that cylinder with another cylinder and see if the problem moves. If the problem moves (misfire code in different hole), the injector is bad. If the problem didn't move, and the compression is fine, then you have a vacuum leak on the intake runner to that cylinder, possibly the intake gasket. Print this and give it to your new mechanic.
No 2 cylinder not firing ???????????????????????
if that is what you are saying then its something like this------------Either Plug no good/compression down below 100PSI or Valve burnt out/Plug lead broken or shorting/coil pack shorting/ Air leak No 2 cyl/Injector not working on No 2 cyl.,.,.,You can check all the above items and let me know what the correct problem is,, and we can work on it further Ron
raise the high beams?
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