[T3] Intermittently running on two cylinders

[Jacob Schroeder]

Thank you, it looks like I need to focus on the FI grounds.  Where are
these located on a '72?  Are you guys referring to the connector
contacts themselves?

Jacob

Sent from my iPhone

On Dec 1, 2012, at 12:06 PM, Mike Fisher <fisherfarms at gmail.com> wrote:

> Use sandpaper on your pairs of FI grounds & add star washers for a better
> connection.
>
> On Sat, Dec 1, 2012 at 11:54 AM, Daniel Nohejl <danielnohejl at gmail.com>wrote:
>
>> My wife and I are currently battling this very issue on our '69 SB with
>> stock FI. We're not running Pertronix though. Perhaps you should begin by
>> verifying the ignition system?
>>
>> For a while, we were running on #1, #2, and #4. When diagnosing #3, the
>> connector for the ground wire snapped off. The wire was brittle and though
>> I didn't see it prior to breaking, it could have been that the connection
>> was so bad that #3 wasn't firing. After replacing the ground connector, #3
>> works.
>>
>> After that, we lost #2 but haven't had a chance to replace the connectors
>> there or do other diagnosis yet.
>>
>> I'm no expert, but I'd check the ignition system and the injector ground
>> connectors.
>>
>>
>> DN
>>
>> On Dec 1, 2012, at 2:46 PM, Jacob Adam Schroeder wrote:
>>
>>> My car has developed an issue lately where occasionally it will feel like
>>> it is running on two cylinders.  When it does this, I can pull the wires
>>> from the fuel injectors on cylinders 2 and 4 and notice no difference in
>>> the sound of the engine.  If I pull 1 or 3, I hear the RPM decrease and
>> it
>>> sounds like it is running on only 1 (if that is even possible).  It is a
>>> 1972 Squareback with stock FI (except for Pertronix electronic ignition
>> --
>>> which I plan to return to the stock set up soon).
>>>
>>> It does not do this all the time.  In fact, two weeks ago, the car ran
>> well
>>> enough (firing on all 4) that I took it the 22 miles each way to/from
>> work
>>> (some of which was highway driving) while my 2012 Golf was in the shop
>>> (don't get me started on that).  I thought the problem must have "worked
>>> itself out" after that, only to find the problem again this morning.
>>>
>>> I'm looking for ideas as to where to start troubleshoot this or if
>> anybody
>>> else has experience a similar issue.  Thanks in advance,
>>>
>>> Jacob
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