XJ Nut
NAXJA Forum User
- Location
- Mancelona, MI
I have an 00 xj with a miss. code for no. 4 cyl missfire comes up. changed coil rail and plugs to no avail. any other input would be appreciated.
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obd2 code of no. 4 cyl missfire. 4.0 in 00xj. any ideas?
- Thread starter XJ Nut
- Start date
Winks00XJ
NAXJA Forum User
- Location
- Prescott, Arizona
mine would throw a misfire code and would be hard to start sometimes. Turned out to be the fuel pump either it didnt have enough pressure or volume or both.
What plugs did you replace with. I put in some platinums and my 2000 didn't like them. Put in regular Champ truck plugs and my misfires stopped. I run injector cleaner regularly. If it is injectors, or depending on where your maintenance is, you could run some BG44K. It isn't worthless and "might" solve your problem.
XJ Nut
NAXJA Forum User
- Location
- Mancelona, MI
I used regular champ plugs, and never thought to check the fuel pressure. Should prob run injector cleaner and check pressure.
XJourney
NAXJA Forum User
- Location
- Lynden, WA
I have had 2 misfire codes on my 01 and both times they were failed injectors. I tried fuel injector cleaner both times with no luck. And I run injector cleaner every 3000 or so miles.
The injector is $45 from the dealer. Napa, Schucks, Carquest don't have the injectors and can't order them.
Hope that helps you.
The injector is $45 from the dealer. Napa, Schucks, Carquest don't have the injectors and can't order them.
Hope that helps you.
bigwillxj
NAXJA Forum User
- Location
- NC State/lexington, NC
I had a similar experience b/c i undergapped my sparkplug. just a hint.
