2001 XJ all original 81,500 miles
It starts and runs fine, drive it 10 or 50 miles, no problem.
Shut it off for a minute then restart and it misses like its dropping a cylinder, eventually clearing up and running smooth again.


I had a parts store plug in to it, the reader said it was miss firing on 2&3.
(I didn't get the codes) I pulled the plugs, they are all white with no oil or carbon build up. I felt that since cylinders 1&2 3&4 5&6 are each on their
own coil and it was 2&3 missing that it wasn't the coil pack. But the guy at the parts store felt it was plugs or a coil so I changed both.


I still have the same missing after restart?



So my question is; Will a faulty injector act up after a restart similar to what I have described? Any other ideas?


Thanks,
Gregg

 

I had one I thought was doing just that, leaking, flooding a cylinder (Hot), then missing for a second. Unfortunately I didn't check the old that I removed, just the new before install. It did clear up.

I gave up looking for the photo. You can slip a long narrow piece of cardboard under the injectors while they are still connected to the rail,(at least on a Renix), and check for leaking.

 

Here it is...

 

Do you have the insulation on top of manifold/under injectors?
Do you have this problem if it sits long enough to cool down, before it's stone cold?

 

Sounds like you're getting heat soak in the injectors

 

Yes,
It does have insulation. I took a couple pictures.