Economy - Longevity - Performance
The #1 Source of TDI Information on the Web!
Forums Articles Links Meets
Orders TDI Club Cards TDIFest 2015 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.

Thread Tools
Old June 4th, 2006, 06:56   #1
Join Date: Jun 2006
Location: St Jacob, IL
Fuel Economy: 51 MPG/ 43 MPG
Default '01 Golf hard start, P0725

Hey everyone- my wifes Golf TDI won't start at times. After about 6 or 7 attempts it will finally start, but then it is VERY slow and has no AC for about half a day with the engine light on and a P725(?) Engine Speed Sensor code. Is it a bad sensor and if so where is it ?! Any help would be greatly appreciated.
joel911s is offline   Reply With Quote
Old June 4th, 2006, 10:23   #2
Join Date: Feb 2005
Location: Syracuse NY

I would assume, given your information, that if the engine speed sensor is bad, that it could have a broad effect. The ECU has no reference for IP timing, and it would also explains why your AC isnt working. The ECU needs to modify engine RPMs to compensate for the additional load, so if it doesn't see a consistant RPM reading to begin with, the ECU does not know what RPM to adjust to. I may be wrong, so if anyone else can help more have at it.
1994 Golf GL 1.8T 318whp 284ft/lbs
1999 Golf GL TDI TDIHeater GTI Heated Leather RC3 Sprint520s
evolveVW is offline   Reply With Quote

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 01:56.

Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright - TDIClub Online LTD - 2014
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 - 2015, All Rights Reserved
Page generated in 0.11446 seconds with 9 queries
[Output: 46.81 Kb. compressed to 42.91 Kb. by saving 3.91 Kb. (8.34%)]