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914World.com _ 914World Garage _ Heeelp ! ... Teener won't Start

Posted by: wheelo Oct 13 2005, 10:22 PM

Hey There.... bad - day with the teener, went to start her for trip home, no-go....
She turns-over, but never fires-up, and fuel actually came out the exhaust !!!!
D-jet FI system, thought it might be my optical ignitian points, so re-installed condensor /points, still no-go ....
What Gives, all connections, fuses, and grounds are good....
This is the first time that she has left me stuck (needed a ride home) but I do need to get her home, or pay for long tow!
Is there anything I can do (emergency type) temporary just to go @ 12miles ?
Then I'm thinking CARBs Baby .....
Any ideas//
Thanks,

- Wheelo

Posted by: Andyrew Oct 13 2005, 11:43 PM

check to see if you have spark.

Start from the spark plugs and work back...

It might be your coil.

Posted by: bd1308 Oct 14 2005, 01:10 AM

get a multimeter, turn car on measure voltage to coil....should be close to 12V from + post to car ground.

look at your points....are they pitted.? are they new or old?

same thing with condensor.....

i would say coil is bad though.....

b

Posted by: Twystd1 Oct 14 2005, 02:03 AM

YOU SAID:

QUOTE
thought it might be my optical ignitian points, so re-installed condensor /points, still no-go

How do you have points and have an optical ignition?

Gimme some help here.

What exactly do you see when you look inside the distributor? (Under the cap)

Do you see points OR an optical system?

Is there a NON-STOCK ignition module hooked up to the dizzy and the coil?

Just wanna know so Slits can help you..

Twystd1

Posted by: SLITS Oct 14 2005, 09:06 AM

If you've got fuel running out the exhaust pipe:

1.) Injection stuck open

2.) Injector being triggered all the time

3.) Fuel pressure way to high (very remote)

4.) Cold start injector stuck open

BTDT.................................

PS....you prolly have spark, but it won't ignite a can (cylinder) full of gas...it just puts the fire out.

Posted by: Dave_Darling Oct 14 2005, 09:56 AM

5.) Un-plugged head temp sensor...

--DD

Posted by: wheelo Oct 14 2005, 06:19 PM

Thanks Guys for input / help !

I have deceided to tow her back to the garage, as a low pressure storm is coming-in, she'll be safer and I can work better @ home.

The Points were petronix / ignitor (sorry, for confusion), Put stock mechanical back.

Coil is good, I do have another.

What would cause the FI to be stuck, always-on ?

That describes exactly what the engine is doing!

Really appreciate the help/experience, I just started a new job, 2 months, and I need my car @ 2-3 days a week!

Peace
- M

Posted by: Headrage Oct 14 2005, 06:23 PM

QUOTE (wheelo @ Oct 14 2005, 05:19 PM)
What would cause the FI to be stuck, always-on ?

Old, dirt, rust, short, etc............

Posted by: SLITS Oct 14 2005, 06:23 PM

QUOTE (wheelo @ Oct 14 2005, 05:19 PM)

What would cause the FI to be stuck, always-on ?

That describes exactly what the engine is doing!

1.) Failed injector(s)

2.) Bad CHT (thanks DD)

Posted by: wheelo Oct 14 2005, 06:27 PM

Fuel filter is fairly new/clear..... don't see any ......

keep the ideas flowing as once I get back with the car....
I will try to repair/ troubleshoot....

- M

Slits - thanks, CHT is brand new, changed @ 1month ago ! seems like a failed circuit/ component ?

Posted by: Dave_Darling Oct 15 2005, 10:51 AM

Have you checked the injectors to see if they are actually opening and not closing? If so, then there's a decent chance that one of the output transistors in the ECU has failed. Get yourself a "noid" light from your FLAPS (for ~$5, or pay $35 for the "fuel injection tester" on evil-bay which is the same thing) and check to see if the ECU is telling the injectors to open and never close. If so, the ECU is the primary culprit; this is a known failure mode.

Where are you located? I have a D-jet tester that checks the ECU. If you're in the Bay Area, I may be able to dig it out and drag it to you... If you're elsewhere, Pelican should still have a D-jet tester they can rent out. Don't know the terms, though.

Oh, and I would still check to make sure the CHT sensor is plugged in securely....

--DD

Posted by: SLITS Oct 15 2005, 11:08 AM

Just because the CHT is new doesn't mean it is not bad.

DD may be onto something with the "dead brain" theory.

Check PBanders site on D-Jet for all the information you will ever need:

http://members.rennlist.com/pbanders/djetfund.htm