Misfire in cylinder 2 once again
#17
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Year: 1998
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Engine: 4.0L I6
Grr, the damn light came back on. This eliminates the remote starter, distributor cap/ rotor, spark plugs, injectors. Think I will test it out for low compression and see whats up.
#18
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Year: 1988
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No need to spend money on a set of noid lights. get your self a 194 bulb bend the wire prongs down and insert it into your fuel injector pig tail and it acts the same as a noid set.
#19
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Year: 1998
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^ nice nice, I just asked auto zone they rent out a whole set for 25 bucks and then when you return it you get your money back. I might pick it up once it stops snowing. But il try what you said as well so i have one at home
Anyway like I mentioned before I had the spark tester plugged in the wire and into the spark plug, the flash was constant. This means that the plug is sparking but does this also mean the wire is good or could the wire still be bad ? I would think if the wire was bad I dont think Id get constant flashing. Am I right or could the wire still be messed up? I found my old spark wires so im thinking il replace the cylinder 2 wire and see how it goes, then if thats not it ill test the injector wires.
Anyway like I mentioned before I had the spark tester plugged in the wire and into the spark plug, the flash was constant. This means that the plug is sparking but does this also mean the wire is good or could the wire still be bad ? I would think if the wire was bad I dont think Id get constant flashing. Am I right or could the wire still be messed up? I found my old spark wires so im thinking il replace the cylinder 2 wire and see how it goes, then if thats not it ill test the injector wires.
#21
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Year: 1998
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I will check it! I dont sit on my *** everyday doing nothing. I go to work and school and I have to go to my uncles to get the compression checked since he has the tools. Like I said its snowing crazy over here, we got about 4 + in of snow and theres traffic everywhere. I also dont have a garage I can pull my car into to just do a compression test. In the spare time I was thinking i could try the old wire as I have the old set. Plus the injector wire is pinched so maybe that could be it as well.
If you cant answer the question, then dont say anything because it doesnt help
If you cant answer the question, then dont say anything because it doesnt help
#22
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Year: 1995
Model: Cherokee
Engine: 4.0L
Check/change your oil soon when you fix the problem. If you aren't firing at all in the cylinder and especially if it does end up being compression(possible ring problem), excessive fuel can run passed the rings and break your oil down.
#23
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Year: 90,84
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Engine: 4.0,2.5
Looks like you got great help here, just a thought. Check that **** injector wire! Looks funky and you have a code.
USLost, "get your self a 194 bulb bend the wire prongs down and insert it" nifty! I like that. My wiring is fine and i want to try it.
Course you could swap #2 & #5 plug wires easy enough if you wanted.
Curious if you can hear or feel it missing.
USLost, "get your self a 194 bulb bend the wire prongs down and insert it" nifty! I like that. My wiring is fine and i want to try it.
Course you could swap #2 & #5 plug wires easy enough if you wanted.
Curious if you can hear or feel it missing.
#24
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Year: 1998
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Will check that injector wire tomorrow and today ima just try a new spark wire. To be honest I dont really feel any difference. Of course its my first car so I dont have any room to talk since I have barely any experience. It doesnt seem like it idles rough or lacks power. It starts up right away so im not sure.
Could it be the dash just displaying the check engine light? Nah that cant be it since it shows a code. Just thought of it since I do get the airbag light on and all gauges turn off every now and then lol. Ground problem.
Could it be the dash just displaying the check engine light? Nah that cant be it since it shows a code. Just thought of it since I do get the airbag light on and all gauges turn off every now and then lol. Ground problem.
#25
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Year: 90,84
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My dad blew a whole $75 on my first car. I learned what a miss sounded like pretty fast.
I did find this;
A code P0302 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
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.
I did find this;
A code P0302 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
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.
Last edited by DFlintstone; 01-20-2012 at 10:48 PM.
#26
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Year: 1998
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Well I just swapped the #5 wire with #2 and Il see if the code comes back since Ima drive it to work tomorrow.
spark plug = replaced
injector = replaced
distributor cap / rotor = replaced
wire = swapped
No rotten eggs smell and whats a coil pack ? Is that the distributor cap ?
spark plug = replaced
injector = replaced
distributor cap / rotor = replaced
wire = swapped
No rotten eggs smell and whats a coil pack ? Is that the distributor cap ?
#27
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Year: 1995
Model: Cherokee
Engine: 4.0
Originally Posted by huntsman
Well I just swapped the #5 wire with #2 and Il see if the code comes back since Ima drive it to work tomorrow.
spark plug = replaced
injector = replaced
distributor cap / rotor = replaced
wire = swapped
No rotten eggs smell and whats a coil pack ? Is that the distributor cap ?
spark plug = replaced
injector = replaced
distributor cap / rotor = replaced
wire = swapped
No rotten eggs smell and whats a coil pack ? Is that the distributor cap ?
#28
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I think it was 00, and 01, actually have no distributor! Individual coils on the plugs, I think? Or I saw one on something where the wires all plugged into a like, block. Where the dizzy goes there is a little goody that senses the position of the cam. Forget what that is called.
Last edited by DFlintstone; 01-20-2012 at 11:42 PM.
#29
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Year: 1995
Model: Cherokee
Engine: 4.0
Originally Posted by DFlintstone
I think it was 00, and 01, actually have no distributor! Individual coils on the plugs, I think? Or I saw one on something where the wires all plugged into a like, block. Where the dizzy goes there is a little goody that senses the position of the cam. Forget what that is called.
#30
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Year: 1998
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Alrighty guys, since i worked my dad took the jeep to my uncles and they did a compression test. 80 psi in cylinder 2 **** ! The rest were at 150psi. So now that I know its the compression whats the next step ? head gasket, valve seat ?