www.tdiclub.com

Economy - Longevity - Performance
The #1 Source of TDI Information on the Web!
Forums Articles Links Meets
Orders TDI Club Cards TDIFest 2016 Gone, but not forgotten VAG-Com List Unit Conversions TDIClub Chat Thank You




Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI 101

TDI 101 Got a simple/basic TDI question? Are you a newbie (new to the forums). Feel free to post your question here.

Reply
 
Thread Tools
Old January 17th, 2010, 17:57   #1
poojeen
Newbie
 
Join Date: Feb 2009
Location: sebastopol
TDI(s): 98 jetta tdi
Default 98 Jetta. Check engine with glow plugs both flashing

i just started the jetta up this morning and the glow plugs turned off, i started the car...and then they started blinking and the check engine light turned on also...
i turned it off, waited, tried again. same thing happened...
turned key, glow plugs went on an off, then started the car...
drove a bit, and both glow plugs and check engine went on.
im curious on the severity of this issue because i can't afford big repairs...
poojeen is offline   Reply With Quote
Old January 17th, 2010, 18:30   #2
jcrews
Veteran Member
 
jcrews's Avatar
 
Join Date: Jul 2007
Location: Round Rock, TX - VCDS
TDI(s): All gone
Default

Check the brake lights function.
Otherwise, there could be a fuel injection fault, which would need to be checked with VCDS.
jcrews is offline   Reply With Quote
Old January 17th, 2010, 18:45   #3
JASONP
Veteran Member
 
JASONP's Avatar
 
Join Date: Feb 2008
Location: Guelph
Fuel Economy: 4.5l/100
Default

IIRC those cars throw that fault as well when the fuel filter is need of replacing or water seperator needs draining.
__________________
2016 Jeep Wrangler, no longer do I have a diesel, repair manuals or spare parts sorry.
JASONP is offline   Reply With Quote
Old January 18th, 2010, 08:42   #4
DieselmannG
Member
 
Join Date: Mar 2009
Location: Sweet Valley,PA
Fuel Economy: 43-48 hwy
Default

I too have a 98 and recently the check engine light came on along with really high boost spikes....any ideas?
DieselmannG is offline   Reply With Quote
Old February 2nd, 2010, 18:50   #5
biopete
Veteran Member
 
Join Date: Apr 2005
Location: Nashville, TN
Default

I have flashing glow plug light on 98 Jetta when driving. I remember the A2 diesels this meant water separator needed draining. But i could not find where this is on the A3 or mention of the flashing glow plug light in the owners manual or the Bentley. But it is time to change my veggie fuel filter and maybe the stock one. What sensor is triggering this and why is this not mentioned in manual? Or did i miss it?
__________________
1998 Beetle tdi
biopete is offline   Reply With Quote
Old February 4th, 2010, 12:15   #6
Dave_D
Veteran Member
 
Join Date: Jun 2003
Location: Gaithersburg, MD, USA
Default

There is a list of conditions that cause the glow plug light to flash in conjunction with the check engine light available somewhere posted by MoGolf. By far the most common is the brake lights or the brake switch,
but other critical sensors can also cause it. I saw it myself when the wiring to my start-of-injection needle sensor on injector 3 came loose. You may also experience a limp mode with this condition.

Your best bet is to pull the codes and see what is causing the condition to be flagged.

Dave
__________________
1999.5 (A4) Tornado Red Jetta GL TDI,5 speed,4 door, RC 2+, Old Navy CCV mod, ventectomy, CAT filter
Dave_D is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 05:48.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright - TDIClub Online LTD - 2017
Contact Us | Privacy Statement | Forum Rules | Disclaimer
TDIClub Online Ltd (TDIClub.com) is not affiliated with the VWoA or VWAG and is supported by contributions from viewers like you.
1996 - 2017, All Rights Reserved
Page generated in 0.16233 seconds with 12 queries
[Output: 68.33 Kb. compressed to 59.26 Kb. by saving 9.07 Kb. (13.27%)]