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RE: [T3] Dead End!

Hmm, the exact/identical/same thing happened to me and my shadow, er,
Porsche 914 (stock FI T4 engine, close enough).  Superduper experienced
mechanics couldn't figure it out, and my wiring was in good shape, as was my
new air flow meter and fuel pump and relays (see comment below about cheap
and expensive routes).  After some talk with the 914 email list I installed
a new head temperature sender.  Problem solved, period!  If the sender is
bad or no good then the engine won't start.  If the wire is broken or shorts
against cooling tin, the engine won't work.  I'd be at a stop light then,
zap, engine dead...and it won't start...and people are honking...after
several tries it'd fire back up...and die while I was driving...then start
back up...and be fine for a while...maddening!

Not knowing exactly what's going on with your system it's hard to dispense
advice.  Personally, I'd make sure the fuel filter wasn't full of crap -- if
suspect then just replace, they're cheap.  Cheap, by the way, is the first
route before expensive ("duuuh, I think it's the fuel pump so let's replace
that (since it's your money and not mine) and see what happens" is the
expensive way).  Really, though, you should make sure the FI wiring is well
protected and your electrical grounds are clean since the FI system is
sensitive to voltage.

Oh phooey, does the D-Jetronic FI system use a head temp sensor?  I know the
L-Jetronic system does...
   Toby "babbling along" Erkson
   air_cooled_nut@pobox.com  <-- Please use this address for email
   '72 VW Squareback 1.6L bored and stroked to 2.0L, Berg five-speed
   '75 Porsche 914 1.8L, R.I.P., ORPCA member
   '95 VW Jetta III GL 2.0L, P-Chipped, Jamex sport suspension
   Portland, Oregon, http://www.pobox.com/~toby_erkson/

> -----Original Message-----
>  	OK.  I need you guys expertise!  I have had my 72 
> Square in the shop
> for 3 weeks!  I'm going to pick it up tomorrow for no charge 
> because the
> mechanic (who says he has worked on these cars since their 
> creation) could
> not|Góout what was wrong.  Maybe you can give me some 
> ideas to throw at
> him tomorrow

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