Long time ...
check engine is on obd2 code is P1111 what to do

 

Nothing!

 

Clear the light and drive it. See if it comes back.

 

NO !!!!!!!

P1111 is a good thing. It means that all the system monitors have completed their self test.

 

Is P111 the only code? What is your car? Is it running smoothly? When you say check engine do you mean you have a check engine light on? How long has it been on?

Try the search function for P111. It does not set a CEL.

Need some real information. . . . Otherwise, do nothing.

 

P1111 isn't going to turn the light on.
It only means its not ready for emmissions test. System self test already passed (P1000).
If the light is turned off and doesn't come back on nothing is wrong.

 

I am pretty sure you mix up the 2 codes, P1000 is the starter, P1111 is 'all set and done'.

 

P1111 still won't get it passed emissions test.
I'm saying the P1000 already passed and got it to the P1111.

 

No, you've got it backwards.

 

It was my understanding that after the initial system test it still needs the following
"– Drive the vehicle at least three separate times in which it is turned on and off
– One drive cycle should be local in-town driving
– One drive cycle should be highway driving
– One drive cycle should be after the vehicle was unused for a period (overnight etc.)
– The gas tank should be ¼ to ¾ full.
– Drive the vehicle smoothly and avoid rapid acceleration"

THEN, P1111 would go away and no codes would show.
CT emmissions won't pass until this is done.
Still, neither of these should be throwing the light.
Jaguar X Type OBD ENGINE MANAGEMENT CODES P1111

 

P1111 should be there. It'll be a pending code and does not put the MIL on.

If the MIL is on (after self-test) and there's no other code than P1111 I think you've a faulty OBD tool.

 

P1111 says the engine has passed readiness. It stays on.

I gave a short answer because the OP gave a terse explanation of his problem and I frankly missed that he had a CEL, primarily due to his lack of punctuation.

I would say he has a code reader or ECU problem if he has a CEL and no valid code. Is there a valid case that CEL should be lit and no code present? Even the case for a transmission controller fault causing a CEL results in an OBD code of P1790, as I recall.

 

No. If the monitors are not ready, P1000 will display. Once the drive cycle has been completed, P1000 will be replaced by P1111.

If your state doesn't understand this, no Jaguar will pass inspection.

Having an actual fault code and the CEL illuminated is a different subject.

 

Dikay has not answered:

Sounds like no CEL, just P1111 on his new reader. Thus, good to go. i.e., do nothing is the right answer.

I remember back a couple of years when I was toying with trading my RRS/SC for this old cat, I pulled out my cheaper OBD reader, read the codes -- just P1111. Told the sales guy, let's sit on it until I figure out what is wrong. Took ten minutes on this forum to discover car was ready to roll (at least as far codes!).

 

Jim:
Like you, I thought he had No CEL. but if you re-write his post as standard english:

as in:
**
For a long time, my check engine light has been on. The obd2 code is P1111. What should I do?
**
then it means he has a CEL, but no code.

As you said, he has apparently gone away.

 

Just did my emission test and I had the P1111 code. It passed with flying colors

FYI

 

Okay,
2002 VDP 308x 145k miles
just changed chains, tensionsers, oil, plugs, plug wires, and ABS control box and a hard boot.
after about a week
1. ABS light came back on and will come on intermittently.
in the second week
1. ACS control warning
2. traction not working
3. check engine light come on. That is when I did the ODB2 test and found the 91111 code with a P0128. The P0128 dropped off when I added some radiator fluid.
It has been three weeks and these lights and codes remain.
Finally last night I had a "gear box failure" to come on and the car seemed that there was no first gear. But the car started driving normally after about an hour.
Can any one give me some direction with these problems?

 

Disregard the P1111 (see all buzz above). Do a reset with your OBD II; do a hard reset with the battery (touch the negative cable to the positive post for 10 - 15 seconds -- this resets the capacitors). Check the wiring to the ABS to assure all electronics are cleaned and correctly fastened -- no broken or bent prongs. Let us know. I would keep an eye on the temperature gauge; the P0128 indicates a bad thermostat or bad temperature sensor -- that code is still gone?

Lots of the issues you identify are caused by a worn-out battery and bad ground straps.

You may also need to examine the ABS sensors at each wheel -- are they clean, no frayed wires.

 

more thoughts: check all the connections you interrupted with the work you accomplished. Particularly from the temperature sensor on the cross over pipe. Are the radiator hoses both getting hot? Does your OBD II reader read temperature in real time?

OBTW: it is useful to put your vehicle data in your signature block.

 

Jhartz,
thank you will do all suggested and get back to you.
All the best!