So headed out to lunch after letting the car warm up 10 min or so (s'cold here), and CEL blew up in my face!! Noooo!!!

Anyways so whipped into an AutoZone, just one code came back, P0077, Bank 1 VVT Actuator or some such.

Read in another thread here that low batt voltage is the source for a lot of issues, especially where CELs are involved. So I will check batt first thing when I get home. May very well be original to the car. But certainly open to any ideas, or input or any one with experience with this particular code.

Should add that car is running seemingly normally. Even attempted an Italian tune up on the way back to work. CEL remains. Runs great actually, even got lil squirrelly when I punched it 😁

Thanks!!

 

Your post and signature gives no indication as to the age of your car...mines a 2014 and needed a new battery.

So you suspect the original battery, do you keep it on a maintainer like a CTEK?

So help us ro help you!

Google throws up

https://forums.jag-lovers.com/t/random-p0077-dtc-bank-1-vvt-actuator-2007-xkr/371597

But feel sure you'd habe already checked that.

 

Would you be so kind as to link the post so I may reference? I did a search for 'p0077' as well as 'cel p0077' and was presented with this screen each time.

 

My apologies, I imagined that having posted in the 'X150' forum it was assumed what I possess. I also have the info available to see in my sig, as shown.




But to specify, its a 2008 Jaguar XKR Portfolio with 51,183 miles.

I do have a CTek, but car is daily driven so have not really plugged it in, or used much...so its relegated to motorcycle battery maintenance duties.

My first thought was to come here, neglecting a Google search. Reckoned why not come straight to the source where a Google search likely would have led anyways. After a search regarding aforementioned code yielded no results, I opted to post for information and education, and maybe help others in the future who have this code come up.

 

I did follow the link you attached to another forum, which strangely referenced yet another forum which mentioned bad 02 sensors. The OP in the original link replaced actuator and accompanying gaskets/seals and that seemingly fixed the issue.

So I will check battery first, try to clean connector. If light persists, guess I'm ordering, then installing,
an actuator lol

 

Isn't every check engine light sudden and surprising?

 

Use the Jaguar-specific DTC definitions instead of generic ones from the Internet. DTC P0077 has nothing to do with the VVT units fitted to the inlet camshafts.

Also, if the MIL begins flashing whilst driving, catalyst damage is occurring.

 

Excerpt from the XK 4.2 service manual:

 

Interesting. I did not know this. Thanks NBCat.

 

this is true lol

 

Ok a little help...DTC and MIL meaning?

I was going by what code/def the OBDII scanner gave. Although I will double check to be certian. Was writing from memory.

 

Jaguar have proprietary DTCs (diagnostic trouble codes) and not likely a generic OBD reader will be able to read that data. MIL is malfunction indicator light. You need someone with the proper diagnostic equipment , preferably JLR SDD.

 

Cool! Thanks for info. Will check locally see if I can find a specificalist or at least someone with the ability to pull a proper code.

Side note, battery is a NAPA AGM unit from Jan2015. Will be first place I start.

 

But basics are kinda essential surely?

 

Perhaps 'Presidential impeachment' might be more appropriate.

Typically Europeans know how to ask questions in a more intelligent way,

Taken from an American IT forum

How To Ask Questions The Smart Way

Simlly put, if your asking for help, why not provide the full and pertinent facts up front as opposed to it being prised from your digits?

 

More intelligent perhaps, but no more effective I assure you. I cannot speak for all of us, but I think we Americans tend to be more straight to the point, none of that false kindness or beating around the bush you lot do....and maybe the Canadians haha.

....or maybe it's just we lack basic manners and politeness lol

Still, the fault is mine for forgetting to add all the details. I see you Europeans are easily confused and need specifics and direction lol Why you must have thought I was posting in the X150 section of jaguarforums about my '88 Tercel, and for that I apologize 😁

At any rate, details were added and I recieved some valuable information to get me started. Will try to post updates until issue is resolved.

 

Speaking of updates...

..I got a multimeter on the battery, and going by a table posted by a user elsewhere on the forum, my battery is indeed on the low end. Between 50 and 75% measuring 12.31V at the posts, ign off, with smart key and hatch open.

May not remedy the original issue, but definitely something I may look to replace.

 

There were at least 5 different types of engines fitted to X150s so it does help to be more specific when asking an engine related question

 

What was the 5th one?

 

3.5 litre.