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Glow plug issues p0671,2,3,4

reeceb123
in Audi A4 (B7) Forum

Featured Replies

I’ve changed the glow plugs, circuit open fault code still shows

Ive changed the glow plug module, codes still show

Ive changed the injector/glow plug wiring loom writhing the valve cover, codes still show 

Recently i’ve been having trouble with my steering lock and ignition switch, can anyone help with my issue. Thankfully it’s hot out so my rough start isn’t terrible 

  • Author

Battery is all good 12.6 volts if i remember correct and 13+ when running

The steering draws power and causes a dip in rpm followed by a slight vibration, normal on some vehicles i believe but not feels somewhat severe 

37 minutes ago, reeceb123 said:

Battery is all good 12.6 volts if i remember correct and 13+ when running

If that is a simple voltage reading on a multi meter it is inadequate to determine whether a battery is defective. Steve is referring to a professional battery test that imposes a heavy load on the battery to expose internal faults within the battery such as high resistance or sulphation of the electrodes.

  • Author

Battery tested at quick fit and all good. What process of elimination would you recommend in regards the glow plugs as the eml is my main concern for MOT

21 hours ago, reeceb123 said:

I’ve changed the glow plugs, circuit open fault code still shows

Ive changed the glow plug module, codes still show

Ive changed the injector/glow plug wiring loom writhing the valve cover, codes still show 

Recently i’ve been having trouble with my steering lock and ignition switch, can anyone help with my issue. Thankfully it’s hot out so my rough start isn’t terrible 

Hi can you please publish the codes as this may well indicate what is going wrong, did you recode the glow plug module.

Steve.

14 minutes ago, Stevey Y said:

Hi can you please publish the codes as this may well indicate what is going wrong, did you recode the glow plug module.

Steve.

There must be sub codes in there somewhere.

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