Date: Thu, 21 Mar 2002 01:47:18 -0800
Reply-To: warmerwagen@HOTMAIL.COM
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Robert Keezer <warmerwagen@HOTMAIL.COM>
Subject: Re: Put rebuilt 1.9l in, now my injectors won't spew, or squirt,
or
Content-Type: text/plain; charset="iso-8859-1"
The Hall control is the ignition not injector control system. You need(page to check that you have battery voltage at terminal 86 and 87 of the power supply relay, and the fuel pump relay.
When you turn the key to on without cranking the engine, the power supply relay energizes the positive side of the injectors.
That's where the injectors get power. The positive side of the injectors are always hot when the key is on. When the engine is running, the injectors are controlled by the negative side of the circuit form terminal 12 of the ECU.
If you have power at the relays, check again for power at the positive terminals of the injector plugs.
Terminal 87 is the load side of a relay. Terminal 30 is the Positive constant power terminal. 85 is Negative terminal, 86 is key-on power. Wwhen you turn the key-power is switched to 87, and this energizes the fuel injector positive side.
CHeck all your connections again especially those at the relays in the black box. Check to see that the power supply from the coil to the relay box are connected right. Also examine for any hard or cracked wires.
The final test is to connect the ohmeter(digital) to terminals 12 and 14 of the ECU harness(unplugged from ECU). This will check total resistance of all four injectors including wiring to the ECU and power supply relay(key-off for this test).
Resistance should be 3-5 OHMS.
----- Original Message -----
Wrom: FJMVRESKPNKMBIP
Sent: Wednesday, March 20, 2002 10:49 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Put rebuilt 1.9l in, now my injectors won't spew, or squirt, or any of that
Ok, all fellow Vanagon sufferers!
There still is no fuel at my injectors. I did all the resistance tests
across the terminals at the ECU connectors, all checks out fine, for the
injectors. Sort of: Bentley says 16.5Ohms, I get 18 Ohms. Rewired all my
grounds, put new connectors on the injectors, needed it anyway.
But there is no voltage at the injectors when I crank the engine. Now I did
the Hall unit checks as per Bentley, minimal as they are: Terminal 1 and 7
result in a voltage reading that is below spec (spec = battery voltage or
slightly less, checked mine, and it's 12.47 V). I get 10.48 V. The only
other test as per Bentley or Haynes is to ground the middle terminal on the
connector to Hall unit, then turn ignition on and check voltage between
terminal 1 at ECU connector and terminal 15 at ignition coil. Checks out
according to spec (1.5 V).
My guess is that my Hall sender is toast, is there any other tests for
checking that. Do I need a whole new distributor if I wanna replace it??What
gives.
Again: fuel pressure ok, relays ok, get ignition spark
Muchas Gracias
Matt
84 WBX Man Wolfy Fast German Rebuild w/ 0miles
> Matthias;
> Page 24.20 and 24.21. Pin seven is common, 11,12,23& 24 is each
> injector. Sixteen ohms across each.
>
> Good Luck and Drive Safely
> Ken Lewis
> 86 Crewcab,60 356
> http://Neksiwel.20m.com/
>
>>
>>
>>>>> On Fri, 15 Mar 2002 22:57:34 -0800 Matthias Kuster
>>> <choreboy@CNMNETWORK.COM> writes:
>>>> Hi list members,
>>>>
>>>> Wondering if one could help me with this: I just got done
>> installing
>>>> my
>>>> rebuilt engine and couldn't help but notice it won't start. I'm
>>>> getting
>>>> spark, and my fuel pump and relay both work fine. The one
>> problem
>>>> is: No
>>>> fuel coming out of the injectors. Most certainly a wiring
>> problem.
>>>> I used
>>>> new screws and cleaned all the little loops that connect the
>> wires
>>>> to ground
>>>> on the left (driver) cyl head, but it still won't spray any
>> fuel,
>>>> any of
>>>> them. I removed them and had them hanging into a tray, fire
>>>> extinguisher
>>>> handy, I know. No spray at all. Except when I removed the bolts
>> (the
>>>> old
>>>> ones, I used the old ones first to connect the grounds) to the
>> cyl
>>>> head
>>>> ground terminal, one of the injectors briefly did spray.
>> Internal
>>>> damage in
>>>> the ground wires??? I wiggle them now and still no spray. Is
>> there a
>>>> way to
>>>> check the ECU? What would my voltage reading be between the two
>>>> leads that
>>>> connect to each injector? The van ran fine a week ago (except
>> that
>>>> the heads
>>>> were blowing internally past the gasket). Should I just go ahead
>> and
>>>> rewire
>>>> the grounds??
>>>>
>>>> There's always something...
>>>> Matthias Kuster, L.A. CA--
>>>> 1984 WBX 1.9 Wolfy Manual
>>>>
>>>
>>> ________________________________________________________________
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>>
>> --
>> Matthias Kuster L.A., CA
>> 1991 164L "Alfonso"
>>
>>
>
> ________________________________________________________________
> GET INTERNET ACCESS FROM JUNO!
> Juno offers FREE or PREMIUM Internet access for less!
> Join Juno today! For your FREE software, visit:
> http://dl.www.juno.com/get/web/.
>
Matthias Kuster, L.A. CA--
1984 WBX 1.9 Wolfy ManualGet more from the Web. FREE MSN Explorer download : http://explorer.msn.com
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