Jump to content

EDC. TO MECHANICAL FUEL PUMP?


RATRACER
 Share

Recommended Posts

Hello,

can anyone offer any advice on converting the diesel injection pump on my 300 tdi auto to mech. type.Big job? Just having trouble with a terrible misfire, which has been diagnosed as the throttle pot.

This can cost big money,if what i have been told at the garage is true(£600) , will start to trawl the breakers tomorrow.

It's just the thought of all that electronic gear just waiting to go wrong again.Need to get back to a bloody simple cable arrangement!

Look forward to your valued replies!

RATRACER

Link to comment
Share on other sites

You might want to get a second opinion on the diagnosis,the throttle pot failing is likely to put the Mil lamp on or put the engine ecu into limp mode - not cause a misfire.Seeing as the EDC pump's hydraulic head is basically the same as the mechanical one,ie it outputs via the same plunger for all 4 cyls,a misfire caused by the pump is very unlikely - except possibly if it had air in the fuel.Your misfire is more likely to be the result of a failed injector,or poor compression,jumped pushrod,failed cam follower,blown head gasket etc.The EDC system is generally as reliable as the mechanical system,but often not well understood - so it gets blamed for all ills.

Link to comment
Share on other sites

Hi,thanks for correspondence,

engine only misfires at 3000 rpm. under load,runs lovely at all other times.Have found throttle pot from known good runner for £150 so willing to gamble on this,witha view to future man cable conversion.

also need to check crank speed sensor and ECU connestions. Will let you know how it turns out.Bit of an emergency this one as in need to pull the caravan down to cornwall for Easter hols,and need to effect repairs by late thursday night!!!!!!!!

Once again thanks to all who replied,this forum is a regular goldmine of help and info.

RATRACER...........

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy