In brief 84.000 miles, runs great, took it for smog in Oct. 2017, passed tail pipe test, almost all Zeros. but failed OBD 11 plug in test because of 2 incomplete monitors, Cal had just reduced No. of monitors not ready from 2 to only 1. San Diego is an Enhanced Area. I was not ready for this, I was a Factory trained Tech and worked for a Dealer here. I also had a Cal. Smog License for many years. and now retired. with Heart problems. I also applied for and passed the BAR. Program Representative entrance exam twice, but not selected. I was also a ASE. Master Tech. and I thought I was fairly bright?? Smog tech tells me the usual, go and drive it, It turns out 2 monitors were not ready, Comprehensive, and of course Evap. About 2 months earlier I had left the lights on all day, I charged the Batt. and started the car. This must have been what caused a reset. The car had never set a code, No freeze Frames, No Pending. nothing I knew I was wasting my time but started driving it, and spent the rest of my spare time, studying, I have driven every drive cycle ever written, yes even Volvo, Rover, Ford, GM etc. etc. that got you driving like a drunken Idiot in the middle of the night. many many times, I paid for my Tags before they were due, but DMV sent me a letter stating the Registration was not complete (no Smog Cert). and if I drove the car it could be impounded. I have read almost every Google page, and watched 100's of Videos, I have totally lost it a few times, With some government employees. Referees, Bar. EPA. Just before Xmas I had driven it about 1000 miles, $300 in Premium Gas, and spent 70 hrs. doing it at average 15 mph. Nothing Ventured Nothing Gained so I Reset. Within 3 days and no more than 100 miles, I was back to the same 2 monitors, I am now up to 1500 miles, and as I predicted nothing has changed. I want to beat some one, but that will probably Kill me. I want to set it on fire in the middle of Mission Bay.
The only thing I have come up with is these Mode $6 results,
The TID $7 CID $11 some times fails.
Also I have noticed that when I superimpose B2 S2, and B1 S2 on top of each other, as a graph using Torque Pro. B2 S2 does not follow B1 all of the time, some times sitting on .02 v other times it is fine, it does seem to be getting left behind more frequently. I have purchased and am about to fit a new B2 S2. I will let you know.

TID:$0a CID:$11
- Sensor period(calculated)
Max: 33,423
Test result value: 65,535
FAIL

TID:$22 CID:$11
-
Max: 37,683
Test result value: 65,535
FAIL

TID:$07 CID:$11
- Minimum sensor Voltage for test cycle(calculated)
Min: 123
Test result value: 217
PASS

 

My understanding is that the downstream O2 sensors are narrow band and do not do that much in the overall scheme. What do your long term fuel trims look like at idle, both sides? They trip a code at 25, but should not be higher than, say 5%, really.

For evap, have you done the easy stuff, like new tank cap? Also, check the driver side wheel well behind the plastic liner for the purge valve and some of the plumbing.

EVERYTHING around the cylinder head and throttle body need to be checked for seals, typically o-rings.

Best of luck, keep us posted.

 

I had a similar experience with my 99 when i first got it....drove it allot, did not pass...not enough stuff populated, like you. Too it to a Jag specialist, they drove it, charged for for that and all the diagnosis they could...no cigar. I tried again hundreds of miles later...not passed. I got a new battery, drove it, and it eventually passed. This is very frustrating and not easy to understand, but eventually it worked. I also tried Google and this forum, very helpful, but I think the new battery made a big difference, that's the only real change I made to eventually get it to pass. Pep boys, Bosch battery.

 

What's especially frustrating is that "Comprehensive" will automatically clear when every other monitor clears, so you really only have 1 actual failure (Evap).

Do you have an Error Code in conjunction with this? A P0441 code, for example, could be any of:

• Gas Cap
• EVAP system leak
• Damaged component in the EVAP system
• Purge valve
• Faulty vacuum switch
• Wiring harness

Be sure and take a hard look at the gas cap first of all, then look for hose leaks in the system...

Here's the steps for any of the Drive Cycle Procedures to help cure an incomplete monitor: https://www.obd-codes.com/jaguar-drive-cycle These helped me after I did a hard reset just days before my smog test, not realizing that it also resets the system monitors.

 

Definitely look at fuel trims (LTFTs).

Also check OBD sensors for plausibility (you can do ECT, IAT and maye some others).

+1 it just about could be battery - sadly Jaguar failed to realise this so did not put in a test to basically say REPLACE NOW. One of the problems with a poor battery is the car starts and seems OK but isn't. Things like coils may be firing poorly. But not badly enough to set codes.

(Check power/gnd connections too of course.)

The tough thing to find can be an EVAP-related such as not working properly when commanded but bear in mind you may struggle to know when that is.

I hate that CA can change the spec like they apparently did. Not fair at all.

 

B1 and B2 sensors not following


Not following


Not following


Following
To refresh, 1999 XK8 80,000 miles failed Cal Smog OBD 11, due to unknown monitors, passed tail pipe test with almost all 0's.That was in Oct. last year. Put Scan tool on it, found Evap, and Comp. not ready. Never had a DTC. or Check Engine, or Freeze Frame, the only pending P1000. I have read and watched every thing there is on the subject, driven every drive cycle there is, even ones for other years, and manufacturers. over and over, I have recorded and printed data over and over, now for nearly 1 year, and about 3,000 miles, I have jacked the vehicle up and tried to do drive cycles stationary, I know about fuel levels, vapor, temps, times before monitor starts, how long before a monitor will not run, over night cool down, etc. etc. The only problem I see is the 3 Mode $6 test failures that can be seen in the attached data from the scan tool. The other thing I noticed, using Torque Pro. I superimposed Bank 1 and 2 down stream sensors on a graph. I noticed B2 S2 was not following the B1 sensor at times, other times it was. I replaced the B2 S2 it made no difference as far as I could see, but now the Elm device has decided to quit working. I have attached the latest print out from the scan tool, and pics. of the graphs from Torque Pro. Since last Oct. I have reset the ECU 3 times with the scan tool, and once by disconnecting the battery.Every time I have all of the monitors except Cat. Evap. and Comp. are ready after a little driving, then after some more driving the Cat. goes to ready. The only thing I can think of doing now is to put the O2 sensor from B1 into B2. and see if that changes any thing. One other thing I found strange, I had not noticed any pressure sounds when I removed the gas cap, so I drove around without the cap on for 2 days stopping and starting many times, and no check engine light.or codes. I was expecting to see, large Vacuum leak. I know the system works, because I had to replace the MAF and I got a DTC. I have to go in for another heart surgery in a coupler of weeks, and would like to not have this on my mind. Does any one have any idea. THANKS..

 

Sorry to hear about your health problem.

I can't see how those graphs are any help. I would follow previous advice or take it to a tech who knows about cars made since about 20-30 years ago i.e. with OBD II.

 

One thing that comes to mind is exhaust leaks. If there is air intake into the exhaust, the O2 sensors will detect it and mis-inform the feedback system. Check things like exhaust manifold gaskets. Check for cracks, too, those are not your friend. Not sure the best way to detect it, but smoke or steam might help visualize, especially if the fans are off.

Best of luck, keep us posted.

 

[QUOTE=Redline;1907286]What's especially frustrating is that "Comprehensive" will automatically clear when every other monitor clears, so you really only have 1 actual failure (Evap).

That would seem logical but all my monitors reset almost immediately (inc CCM) but my Cat monitor never has to date.

 

Way over 1 year ago I had a code P0113 which translated to High Voltage from the IAT. Sensor, I replaced the MAF. and the code went away, apart from that I have never had ANY DTC's, Freeze frames, Codes, and only P1000 Pending, My exhaust has no leaks, At one time one of my neighbors said he could smell fuel around the back of the car, I could not smell anything but I started thinking about it recently because my Evap monitor is not ready, than I thought I have not heard any pressure sounds when I remove the gas cap, could there be a problem in that area, the next time I removed the gas cap for fuel, I listened carefully, no noise. I decided to drive around without the gas cap on and see what happens. Nothing, no change in Idle speed, or anything else, and no Codes. How come the ECU does not know that there is a large vacuum leak? That info must come from the pressure sensor in the gas tank. I am sure that if it is not working the ECU would put a code up for that, especially when the monitor tries to check the gas tank.pressure. I have googled different versions of " No Code When Driving Without Gas Cap" and am coming up with nothing, do I have the only vehicle that does this? I am baffled. I have also read many times that the Comp will not be ready until the Evap has gone to Ready and that is always the last one to set, but some owners state that Evap and Comp are ready but Cat is not. Also while researching this stuff I have seen written several times, by the EPA. BAR. All Data, that the 3 Monitors "Fuel, Misfire, and Comp. are Continuous and as it says they are always running, and there for are always ready? The others are not Continuous and need special conditions to run. I also read on page 7 of the EPA's "Smog Check OBD Reference.Lite Version", 06/08/2018 That Gas Powered Vehicles 1996 to 1999, the Number of Incomplete Monitors Allowed to Pass OBD Test is any one, with foot note *2. Foot note *2 states that the Continuous Monitors, (Misfire, Fuel, and Comprehensive Components) are ignored during the OBD test of "gas" vehicles. This foot note was snuck in on 08/25/2017. I called the BAR office in Rancho Cordova Ca 95670 Phone (800)-952-5210. I said I notice you have snuck in Foot Note *2 in your OBD Reference Booklet on page #7 That the 3 continuous Monitors, are Ignored on the OBD Test of Gas vehicles, he said yes, I said I have 2, not ready, Comp. and Evap, as Comp is ignored, that leaves only 1 the Evap, and I am allowed to have 1, So if I take my car in for a Smog today it will pass? He said yes. I went back to the Star Smog Station where my car failed, I pointed out to the Tech. the note on page 7, and told him what the BAR man had told me, I said so it will pass this time, he said I don't know you will have to pay for another Smog, about $65.00 to find out. I said no thanks, and went to another Smog Station, I explained every thing to them, they told me the same thing, pay for another Smog. So here I am in Limbo! I hope this info helps some one.

 

Not sure but i thought there was a gas cap TSB and maybe a recall back in the day. Nothing to lose to give the local dealer the vin to see if you have any free recalls outstanding. I had a 99 and got a couple of things done for free!😀

i feel the pain, ditto experience here of driving thousand miles over months. Check out my update under the recent "drive cycle" thread. I used electrical cleaner and reseated all the TB connections and relays. But a previous poster is right that you should start with load testing the battery, these cars are very voltage sensitive.

 

Odd thing for me to chime in on, but clean your vvt electrical plugs- they were preventing one of our XK's from finishing that CAT test. (or so I believe as afterwards, they all cleared)

 

Thanks DSNYDER586, I will check them out

 

Thank you alanroberts50 I have checked all of the TSB's I can find, I have not seen any regarding the Gas Cap, I have seen, 303-S481 Corroded Filler Vent Pipe - Canister Vent Pipe - Canister Vent Valve - Service Action S841. regarding replacing the Pipe due to rust particles entering the CCV. and causing it to not close. This TSB says check to see if the pipe has been relocated to the outside of the Suspension turret, if so no further action is required. If not replace hose. It says nothing about checking the Valve. There is also 303--52 Difficult or no Cold Start, after moving car a short distance the previous day. Re-flash ECM. When that is done a generic update label should be put along side the VCATS label in the trunk, I looked and there is neither, also there should be an" Authorized Modification Label" attached to the Drivers Door B Post, That is not there either, Maybe getting Re flashed with the latest Software wouldn't do me any harm. I shall take your advice, and talk nicely to my Jaguar Dealer. I have done another day's research, and still cannot find any reason for no MIL or DTC when driving around without a gas cap. From what I have read it should be instantaneous. .

 

Almost sounds like an electrical connection/fuse a circuit not completed in the evap system

 

Found the gas cap recall but looks like it was MY 2000 on, sorry https://www.jaguarforums.com/forum/x...gas-cap-53229/

 

Thanks I read the same post from 2011, I know it did not apply to my car, but read it anyway. I was interested to read from Ant17 that he spoke to a Jag. Dealer in Chicago, and was told it was only a Service Bulletin, not a Recall and they will not pay for anything out of Warranty. Some one else said the action expired Dec. 31 2008. I did not think TSB's Expired, and had nothing to do with Warranty. What do I know.

 

Here is the problem, I have tried every Drive Cycle ever written, (I do exaggerate a little) except the "ALL DATA" 18 step drive like a drunk then repeat 10 times April fools drive cycle, I have enough trouble hanging on to my Driving License as it is, and with 6 month out of date Tags. I have never had any DTC's. MIL's. Freeze Frames, Nothing, I wish I was given a clue, This is like doing a $5000 jig saw puzzle without looking at the box. To make matters worse I recently decided to try driving without the Gas Cap on, for some reason, and no gas cap warning, Large Vacuum Leak, no nothing. This has really got to me as I have googled this in many different ways and cannot find anything similar. Thanks for your input.

 

Bear in mind the car used to be OK and would have had P1111 only (thus all monitors set OK).

Then something happened - the P0113 or whatever.

Did it get back to P1111 after that?

The snag is once monitors are cleared (unset if you prefer) until they set again many codes cannot flag because the PCM just does not know what it can trust.

Yes, it's possible to get a version of Catch-22.

 

I purchased the car in April 2016, previous owner Smogged it for change of owner, But I don't think it had the OBD11 plug in test, only the tail pipe test. Some time in 2017 maybe June, I left the lights on all day. The next day I had to put the charger on it. That was the end of that. I drove it for 4 months, including 1 trip to Los Angeles and back one day about 300 miles. Some thing that has occurred to me is before I studied and performed Drive Cycles my Monitors would never have been ready for 1 reason, I wait until the fuel tank is nearly empty, then put $20.00 of gas in it. My theory is that if any low life steals the car they won't get far, so it usually never had over 1/4 tank. unless I went on a trip. Before I bought the Jag I had a 1996 SC300 Lexus for 5 years. that sailed in and out of Smog Stations. In Oct last year when the Jag. needed to be Smogged I just got in it drove it to the Smog Station, and calmly read a Magazine, Then I was told it had failed I nearly fell over, Why? Because it's OBD System was not ready. What? He said you need to go drive it some more. I had given up being a Mechanic ten years ago, and given most of my tools away, not wanting to appear stupid I said OK. and left. I was only barely aware of Monitor things, but I did have a scanner at home. When I plugged it in I found the Evap. and Comp.not ready, that is when I started studying. and you know the rest, No Codes. I have attached a copy of the Smog Test, to show how clean it is. and that is what really upsets me. Thanks for your patience.