View Single Post
  #13  
Old June 14th 07, 02:04 AM posted to rec.autos.makers.vw.watercooled
[email protected]
external usenet poster
 
Posts: 67
Default 1994 VW Jetta III 2.0 auto cranks and won't start

On Jun 11, 2:15 pm, Tom's VR6 > wrote:
> In rec.autos.makers.vw.watercooled, wrote:
>
> >my 1994 jetta III has a distribution system, it's not using a coil
> >pack. by the way i think the coil pack is a very ill-concieved idea
> >unless each coil can be inspected and replaced individually... but why
> >coil pack??? sheesh!!! ignition by distribution has been around for as
> >long as automobiles are...

>
> The coil pack has the *theoretical* advantage of no moving parts.
> Also, one coil or drive transistor could fail and let a six cylinder
> engine limp home. (not sure about a 4).
>
> The coil packs have been notorious at flash over during humid
> conditions, which then burned carbonized tracks into the insulator.
> That same sort of thing could happen with a single coil, but with a
> single coil there is probably more room to allow a bigger flash over
> path. Your description of running badly with humidity made me think
> of my experience with coil packs.
>
>
>
> >oh i can definitly see the point of mounting the ECU in the engine
> >compartment but i think i'd wrap my replacement ECU in saran... lol

>
> >and i started to wonder if there's a VW conspiracy... i did some
> >google and found out that some folks were flabbergasted when they took
> >their dead VWs to the dealers only to hear them talk in a different
> >language, the dealer would then refer to the crankshaft sensor as
> >impulse sender, and camshaft sensor as hall sender, and they never
> >suggested ECU problems as if those things would never fail... such
> >BS!!!

>
> Let's see if that new computer fixes your car. Good luck.
>
> If you can start then, I would still look at the engine in the dark
> to look for flash-overs on coil, distributor or wires. If the
> weather is not foggy, make your own fog with a water mist.


thanks tom

if automobiles makers realise that they can't get away with putting
lighter duty coils in a coil pack then i'd say coil pack design is
superior to distributor.. i'm sure they know well about statistics as
far as reliability is concerned but reducing bill of material still
their number 1 priority..

anyways, i believe my ECU was shot and a new ECU will fix my car..

i went to benltley publisher's site and found this thread.. the guy's
experiences with his 98 jetta is similar to mine,
and dave was right, OEM ign coil works when after market units don't..
it's all about the ign module working in conjunction, i guess.. but i
havent replaced mine yet..

http://tech.bentleypublishers.com/th...art=0&tstart=0

and then i found a used bosch ECU with matched part number on ebay for
$47 shipped.. bought it and now i'm wating for it to arrive

if it can run, i'd do a water mist just to see what's going on, but i
can never forget that the only times that my german lady quit on me
was when she's given a steam bath.. lol

will let you guys know how it'll go...

Ads