Odd fuel cut-out situation - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Odd fuel cut-out situation by 8v-of-fury on 18 Jul, 2012 20:06
• Ok so check this out duders.
  
  My bro's car has this odd full-on stutter. Completely intermittent and I don't know what could be causing it.
  
  Happens when you are on the throttle, at any spot of the throttle. Here is the catch though, we attributed it to a dieing injection pump and the engine was tired as well so we swapped out the 1.6TD for a 1.9AAZ with a built up Frankenshteeen pump. Still does it.  Different everything. Wtf eh?
  
  Also, holy effin cracker berries! Does the AAZ ever haul some serious butt in a mk1 . k03 turbo, straight downpipe exhaust and the pump turned ALL the way up. MOTHER OF GOD. Too bad I did not video the 1st, 2nd, 3rd gear brake stand 
• #1 by burn_your_money on 18 Jul, 2012 20:10
• rotten lines in the fuel tank is my guess
• #2 by theman53 on 18 Jul, 2012 20:11
• 12v to the fuel seliniod would be a first guess. 2nd maybe fuel lines, but that one should get worse not the same anywhere in the pedal.
• #3 by 8v-of-fury on 18 Jul, 2012 20:13
• Alright but they go in the bottom middle right side, and go to a submerged pickup in the middle of the tank yes? From what I recall from looking in my own mk1 tank anyway.
  
  Even if they were rotten that should only present itself on say an empty or near it tank. We went out and put 30L in it to make sure that wasn't the problem. Still did it.
  
  Thanks for the reply Tyler.
  
  Pretty sure the 12v connection is good and solid. but I will give it a once over.
• #4 by theman53 on 18 Jul, 2012 20:24
• The connection isn't the issue most times. Remember Maxfax had one that looked ok, but was broken inside. He replaced it from the loom to the pump and his issues were solved. If not that I would look into the other points associated with the 12v. Maybe the key switch that has been known to cause problems or the X relay, maybe another relay. But a simple jumper from the battery to the pump would be an easy rule out for the feed wire to fuel.
• #5 by RustyCaddy on 19 Jul, 2012 04:31
• What the Man said about the x-circuit or ignition switch especially if it is an early MK1 with the ceramic fuses and pigtail pluggins
• #6 by 8v-of-fury on 19 Jul, 2012 09:41
• Ah well i will see if it will still do it with a 12v straight to it.
• #7 by mtrans on 19 Jul, 2012 12:36
• Do you keep hard lines?
• #8 by 8v-of-fury on 19 Jul, 2012 16:34
• 12v from the battery solved it.. So i guess being easiest I will replace the x-relay first, then the ignition switch and if all else fails.. It will get a switch for the pump and push button start
• #9 by theman53 on 19 Jul, 2012 18:43
• Why not just a new 12v wire from the harness? the man 53 FTW(L)   BTW LOL
• #10 by 8v-of-fury on 19 Jul, 2012 18:48
• Quote from: theman53 on 19 Jul, 2012 18:43

  Why not just a new 12v wire from the harness? the man 53 FTW(L)    BTW LOL
  

  
  HAHA, isn't the harness the problem?? Plus, bro likes the idea of flip switch for ignition and push button start
• #11 by theman53 on 19 Jul, 2012 18:51
• I would take a shot at following it back to the main clump and splicing it in there.