[A4] Potential A4 Conflagration

[Scott Simmons]

Eh, I've seen cars with a failing/failed FPR.  Usually the pressure 
spikes (past 100 psi) and that shuts down the injectors completely (too 
much load pressure, not enough electrical power to operate the 
injector's solenoid against such pressures).

But I haven't had any experience on the AHA engine, so I guess it's 
possible.

Yes, I know I just shot my own half-theory in the foot.  It's why I 
didn't reply with it in the first reply.

~Scott S.

Scott DeWitt wrote:

>Stuck FPR at cold temps?
>
>---- Scott Simmons <indischrot at gmail.com> wrote: 
>  
>
>>Since it's happening to all 6 injectors, I almost want to dismiss the 
>>idea that all of them failed in the exact same way at the exact same time.
>>
>>Maybe it's a fuel pressure issue?
>>
>>~Scott S.
>>
>>Richard Andrews wrote:
>>
>>    
>>
>>>Sounds like a great way to get outta a b5 lemon.
>>>
>>>I've never heard of this before but suppose anything is possible.
>>>
>>>-richard
>>>
>>>On Fri, Dec 26, 2008 at 5:10 PM, Doug Harrison <S6overMT at montana.net> wrote:
>>>
>>> 
>>>
>>>      
>>>
>>>>Greetings,
>>>>
>>>>I have a 1998 model with the 2.8 5V (AHA) engine with about 120K on the
>>>>clock.  When temps fall below 0 degrees F, upon starting (if it starts at),
>>>>all 6 fuel injectors leak copious amounts of fuel externally at what appears
>>>>to be the area below the plastic electrical connection on the injector body.
>>>>As this is happening, with fire extinguisher in hand, the engine runs fine
>>>>and warms up normally with no engine fault codes thrown (had 2 throttle body
>>>>fault codes earlier, but they did not return after clearing) .  The
>>>>injectors do not leak at all when starting above about 10 degrees or when at
>>>>normal operating temps.  The (12) injector seals were very recently replaced
>>>>along with a new fuel pressure regulator (and there is good vacuum at the
>>>>regulator).  Have not gauged fuel pressure yet or checked fuel return lines
>>>>for blockage.
>>>>
>>>>Before I throw $600+ at a new set of injectors, have I missed something?
>>>>Anyone hear of defective injectors in these cars under extreme cold?  Any
>>>>ideas would be greatly appreciated.  Thanks much.
>>>>
>>>>Doug H.
>>>>_______________________________________________
>>>>A4 mailing list
>>>>A4 at audifans.com
>>>>http://www.audifans.com/mailman/listinfo/a4
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>_______________________________________________
>>>A4 mailing list
>>>A4 at audifans.com
>>>http://www.audifans.com/mailman/listinfo/a4
>>>
>>> 
>>>
>>>      
>>>
>>_______________________________________________
>>A4 mailing list
>>A4 at audifans.com
>>http://www.audifans.com/mailman/listinfo/a4
>>    
>>
>
>
>  
>