VW Jetta - Glow Plug/Heater Cylinder 3 - P0673
October 13, 2007 - 4:51pm
Dear Greasers,
My 2003 Jetta Wagon TDI got another engine code last night - Glow Plug/Heater Cylinder 3 - P0673. Three weeks ago I got an engine code - P0252 - Injector Pump Metering Control A Range/Performance. The Greasecar Community basically told me to erase the code and see if it came back. I went 200 miles with out any problems and I thought I was back on track with my system until?
I forgot to purge before I went out last night. I started up with a cold engine and the Jetta fired right up and I purged immediately, but I got the check engine light and the P0673 code. (I?m out of practice because I did not think I should use Grease anymore, but I bought some high quality WVO from Greasecar and tried it out).
I cleared the P0673 Code and I am wondering how bad this code is or did I just stress the engine with the cold WVO?
-------------------------
The Dings
October 14, 2007 - 8:06am
#2
Dear TDIGuy,
You have helped me so much. Do you recommend that I replace all glow plugs like windshield wipers or is it ok to replace one?
I will get their tech support people to help me with the exact model for my 2003 Jetta. Do you need any special tools?
Sincerely,
Jolly
-------------------------
The Dings
October 14, 2007 - 11:04am
#3
Well that is all up to you on if you replace one or all of them. I know a lot of people replace them like spark plugs if one goes they just replace them all while they are there. Totally up to you they just help start the car up after startup they are not used. No special tools are required if i rmember correct its a 17mm deep socket.
-------------------------
01 vw jetta TDI : RC II : VR6 Clutch
Vag-Com tool at home
Veg 04-06 now mixing into the HHO
Another good veg site
http://fryertofuel.hypermart.net/store/page6.html
October 15, 2007 - 10:37am
#4
I had same issue nearly a year ago. My bad GP was #4. I replaced it and left the other three. no problems. These cars apparently had two different types of GPs (Bosch or Beru?). If you replace only one, make sure it is the same type. Do a google search, there are some places on line that have reasonable prices on sets of 4.
Later,
-------------------------
sdeck
2003 Jetta TDI, GreaseCar kit, veg-therm std, TDIHeater, >30,000 veggie miles and counting!
"If you make it idiot proof, nature will make a better idiot"
October 15, 2007 - 7:18pm
#5
Thanks sdeck for the feedback. Can you tell me how to find cyclinder #3? I don't know if I work from left to right. Also, my local VW dealer said that the electrical saddle can sometimes be the problem not the glow plug. He said to try the resistance ohms on the #3 to make sure it is defective. What do you think?
-------------------------
The Dings
October 15, 2007 - 9:28pm
#6
There is a very good thread on the TDI forum about this code. You probably should read it. (Use the search function. Just put in the code.) There are three basic reasons for the code. Faulty glow plug. Bad connection between harness and plug. Bad harness. Bad harness is the biggest PITA but isn't that hard. The thread gives detailed instructions on how to test plug with ohm meter without removing it. After I cleaned connections and sprayed with DeOxIt (spelling?) twice, the code hasn't returned since last spring. There are cautions to observe when removing/replacing glow plug. It's not a big thing to worry about but may make for hard starting in cold weather.
-------------------------
http://www.zeitgeistmovie.com
2003 Golf, 2004 Jetta Wagon w/ standard Greasecar kits.
Installed Spring 2006
October 16, 2007 - 10:24am
#7
I think #3 is the one with the sensor on it that sticks up a little higher then the other injectors. Ya you could break out the ohm meter and start testing things and troubleshoot the harness the connectors and such because yes it could be any of those 3. You might not even have a harness plug though. My vw has the early model glow plug harness where it is acually a soldered connection.
-------------------------
01 vw jetta TDI : RC II : VR6 Clutch
Vag-Com tool at home
Veg 04-06 now mixing into the HHO
Another good veg site
http://fryertofuel.hypermart.net/store/page6.html
October 17, 2007 - 8:52am
#8
Thanks for the advice. The number 3 glow plug is the second one in from the left. My ohmmeter is a really nice model and it measured 356 for #3 whereas the rest were .04 or .03 ohms. I found out that the bad unit was a Beru model but I can only get Bosch glow plugs locally. I was told not to mix the Bosch and Beru. Daryl Beck said go ahead and replace all the glow plugs especially with winter coming up. They are $22 a pop from my local NAPA guy whereas my local VW dealer wanted $44 per unit. Thanks for saving me time and money. I enjoyed the troubleshooting and really appreciate the great pictures on the 673-code thread. They were extremely helpful.
-------------------------
The Dings
October 17, 2007 - 2:46pm
#9
Hi Jolly,
Glad you got the GP thing figured out.
Since you are running an '03 like mine, I thought I'd point you over to my post on the other GC forum regarding Blackstone Oil analysis. Please read it and get a UOA on your next O/C. You will see why when you read through the post. I have two analyses posted there and the reasons for differences between them is something you should be aware of. Why I think the first one was so bad and what the fall out was should also be something to consider.
Don't be scared, just be aware.
Later,
-------------------------
sdeck
2003 Jetta TDI, GreaseCar kit, veg-therm std, TDIHeater, >30,000 veggie miles and counting!
"If you make it idiot proof, nature will make a better idiot"
October 22, 2007 - 9:51pm
#10
I am glad doing UOA has caught on at least a little more. Its kind of like haveing your blood tested to make sure everything is functioning properly.
-------------------------
01 vw jetta TDI : RC II : VR6 Clutch
Vag-Com tool at home
Veg 04-06 now mixing into the HHO
Another good veg site
http://fryertofuel.hypermart.net/store/page6.html
View your shopping cart.
Greasecar Kits and Products
Search
User login
Skype: greasecarsupport
Greasecar Customer Profiles
Who's online
There are currently 0 users and 10 guests online.
I wouldnt worry much over a glow plug code. The glow plug might have gone bad on you its no big deal and they are not hard to replace. Tdiparts.com sells them for reasonable money. If the code comes back you probably just have a bad glow plug or the connection became loose somehow.
-------------------------
01 vw jetta TDI : RC II : VR6 Clutch
Vag-Com tool at home
Veg 04-06 now mixing into the HHO
Another good veg site
http://fryertofuel.hypermart.net/store/page6.html