first off the car idle speed starts off slow and ruff around 8500-9000
at it’s high untill the car warms up then it runs faster and faster till
around 3000rpm and the car dies and I have to wait till the engine cools
down before it will start again this process takes about 15 to 20 min .
29
May
86 16v scirocco
try wrecking yard, they allow exchange if need it
"Peter Cressman" <cressm…@IHATErogers.com> wrote in message
news:9Uwza.16512$cK1.9616@news01.bloor.is.net.cable.rogers.com…
- Hide quoted text — Show quoted text -
> I never used to hate Digifant….but I do now…
> The car is still missing when it is in drive and at a stop…..It’s not
> always doing it, but it is still happening…..I am ready to spit, This
> stupid thing is really giving me a headache. According to my Haynes
manual,
> a miss at idle can be caused by:
> – Spark Plugs (new) worn or not gapped properly
> – Faulty Plug Wires (New)
> – Vacuum Leaks
> – Incorrect Ignition Timing (Checked, spot on)
> It **seems** like an electrical miss. The cap and rotor are new, but I am
> wondering if the ECM is starting to die. I had an ECM from another Jetta
in
> the car, and it didn’t seem to be missing at all….I have a bad feeling
> that I need a $700 ECM. If anyone has any ideas, I would love to hear
them!
> Thanks,
> Peter
> —
> —
> 1990 Jetta GL Wolfsburg Edition (Jude)
> 1989 Jetta Carat (Un-named, but open to suggestions!)
> 1969 Beetle (Fergus) (Basketcase)
> 1968 Beetle GLX (Rhett)
> "It’s not a car, It’s a Volkswagen"
> http://www.geocities.com/petecressman
I’m wondering if it might be a leaky injector…..that would make sense….
- Peter
"Dosio" <kstoya…@attbi.com> wrote in message
news:ubyza.713015$Zo.151725@sccrnsc03…
- Hide quoted text — Show quoted text -
> try wrecking yard, they allow exchange if need it
> "Peter Cressman" <cressm…@IHATErogers.com> wrote in message
> news:9Uwza.16512$cK1.9616@news01.bloor.is.net.cable.rogers.com…
> > I never used to hate Digifant….but I do now…
> > The car is still missing when it is in drive and at a stop…..It’s not
> > always doing it, but it is still happening…..I am ready to spit, This
> > stupid thing is really giving me a headache. According to my Haynes
> manual,
> > a miss at idle can be caused by:
> > – Spark Plugs (new) worn or not gapped properly
> > – Faulty Plug Wires (New)
> > – Vacuum Leaks
> > – Incorrect Ignition Timing (Checked, spot on)
> > It **seems** like an electrical miss. The cap and rotor are new, but I
am
> > wondering if the ECM is starting to die. I had an ECM from another Jetta
> in
> > the car, and it didn’t seem to be missing at all….I have a bad feeling
> > that I need a $700 ECM. If anyone has any ideas, I would love to hear
> them!
> > Thanks,
> > Peter
> > —
> > —
> > 1990 Jetta GL Wolfsburg Edition (Jude)
> > 1989 Jetta Carat (Un-named, but open to suggestions!)
> > 1969 Beetle (Fergus) (Basketcase)
> > 1968 Beetle GLX (Rhett)
> > "It’s not a car, It’s a Volkswagen"
> > http://www.geocities.com/petecressman
>From: "Peter Cressman" cressm…@IHATErogers.com
>I’m wondering if it might be a leaky injector…..that would make sense….
>- Peter
I have seen stuck open electronic injectors and some stuck closed.
Does this help?
Did you pinpoint whether it was a fuel or ignition problem?
I had an intermittent miss in my GTi engine which happened more in the morning
when it was wet or dry outside. When it warmed up it seemed fine even driving
in the rain.
I connected it to a scope and it was the spark plug wires.
I hate guessing. I like to determine what is NOT causing the problem before I
start changing parts. Cheap and lazy I guess. lol
How did you check the timing on the Digifant? Does Haynes also make you check
total advance which will test the knock sensor?
How is the compression of the cylinders?
Did you try to find out which cylinder is missing?
Carb cleaner can help you check for vacuum leaks esp. at the fuel injector
seals.
I only like Bosch rotors and caps. Did you use the correct rotor?
later,
dave
Reminder……..
Before you criticize someone, you should walk a mile in their shoes. That way,
when you criticize them, you are a mile away from them, and you have their
shoes. Frieda Norris
Due to the sporadic nature of the problem, me thinks that it is not
mechanical, but rather electrical. If one of my injectors is dying, than
that would make sense, if the problem was so sporadic.
Might try some FI Cleaner…
- Peter
"dave" <vwd…@aol.comANTISPAM> wrote in message
news:20030523204850.00970.00000335@mb-m18.aol.com…
- Hide quoted text — Show quoted text -
> >From: "Peter Cressman" cressm…@IHATErogers.com
> >I’m wondering if it might be a leaky injector…..that would make
sense….
> >- Peter
> I have seen stuck open electronic injectors and some stuck closed.
> Does this help?
> Did you pinpoint whether it was a fuel or ignition problem?
> I had an intermittent miss in my GTi engine which happened more in the
morning
> when it was wet or dry outside. When it warmed up it seemed fine even
driving
> in the rain.
> I connected it to a scope and it was the spark plug wires.
> I hate guessing. I like to determine what is NOT causing the problem
before I
> start changing parts. Cheap and lazy I guess. lol
> How did you check the timing on the Digifant? Does Haynes also make you
check
> total advance which will test the knock sensor?
> How is the compression of the cylinders?
> Did you try to find out which cylinder is missing?
> Carb cleaner can help you check for vacuum leaks esp. at the fuel injector
> seals.
> I only like Bosch rotors and caps. Did you use the correct rotor?
> later,
> dave
> Reminder……..
> Before you criticize someone, you should walk a mile in their shoes. That
way,
> when you criticize them, you are a mile away from them, and you have their
> shoes. Frieda Norris
Did you try sn ignition coil, especially if it has a silver tage on it. The
better coils had green tags. BTW I have several ECU’s here.
"Peter Cressman" <cressm…@IHATErogers.com> wrote in message
news:5nzza.17599$cK1.9042@news01.bloor.is.net.cable.rogers.com…
- Hide quoted text — Show quoted text -
> Due to the sporadic nature of the problem, me thinks that it is not
> mechanical, but rather electrical. If one of my injectors is dying, than
> that would make sense, if the problem was so sporadic.
> Might try some FI Cleaner…
> – Peter
> "dave" <vwd…@aol.comANTISPAM> wrote in message
> news:20030523204850.00970.00000335@mb-m18.aol.com…
> > >From: "Peter Cressman" cressm…@IHATErogers.com
> > >I’m wondering if it might be a leaky injector…..that would make
> sense….
> > >- Peter
> > I have seen stuck open electronic injectors and some stuck closed.
> > Does this help?
> > Did you pinpoint whether it was a fuel or ignition problem?
> > I had an intermittent miss in my GTi engine which happened more in the
> morning
> > when it was wet or dry outside. When it warmed up it seemed fine even
> driving
> > in the rain.
> > I connected it to a scope and it was the spark plug wires.
> > I hate guessing. I like to determine what is NOT causing the problem
> before I
> > start changing parts. Cheap and lazy I guess. lol
> > How did you check the timing on the Digifant? Does Haynes also make you
> check
> > total advance which will test the knock sensor?
> > How is the compression of the cylinders?
> > Did you try to find out which cylinder is missing?
> > Carb cleaner can help you check for vacuum leaks esp. at the fuel
injector
> > seals.
> > I only like Bosch rotors and caps. Did you use the correct rotor?
> > later,
> > dave
> > Reminder……..
> > Before you criticize someone, you should walk a mile in their shoes.
That
> way,
> > when you criticize them, you are a mile away from them, and you have
their
> > shoes. Frieda Norris
>From: "Peter Cressman" cressm…@IHATErogers.com
>Due to the sporadic nature of the problem, me thinks that it is not
>mechanical, but rather electrical. If one of my injectors is dying, than
>that would make sense, if the problem was so sporadic.
>Might try some FI Cleaner…
>- Peter
you can listen to the injectors click with either a long screwdriver or a
decent automotive stethoscope. no click in only one of them = bad injector!
BTW I have seen some terminals for the injectors either broken or pulled
off/out some too!
Stethoscope helps locate offending injector, but you need to check wiring to
it!
later,
dave
Reminder……..
Before you criticize someone, you should walk a mile in their shoes. That way,
when you criticize them, you are a mile away from them, and you have their
shoes. Frieda Norris