OBD-II P1237 P1238 P1239 P1240 P1241 P1242 - resolved NOT

[John Cody Forbes]

Look at a wiring diagram and see what is in the injector circuits. A common connector with a dirty connection? A flaky power supply relay? Fuse with a bad connection? Check the ECU connector for corrosion?

-Cody (mobile)

On Oct 31, 2010, at 8:32 PM, Kent McLean <kentmclean at comcast.net> wrote:

> I wrote:
>> I loaded up my A4 Avant for my trip from NH to NY. Then I got in
>> and turned the key.  Rrrr-rrr-rrr. Rrrr-rrr-rrr. The Bee Aitch
>> wouldn't start. The engine would spin, but not even a burp.
>> 
>> My generic OBD-II reader showed the following codes: P1237 P1238
>> P1239 P1240 P1241 P1242
>> 
>> P1237 = Cyl.1-Fuel Inj.Circ. Open Circ.
>> The others are for cylinders 2-6.
> 
> It's back.  Two weeks ago, after the mechanic couldn't find anything
> wrong and I had him replace the 2 port-side O2 sensors, I got in the
> car for my trip from NH to NY and again the car wouldn't start until
> the third try. Again the same codes (in the subject line). It's also
> occasionally throwing one for a bad catalytic converter.  I was ready
> to give up.
> 
> It was fine for 2 weeks. And once again today, ready to do the NH-NY
> trip, it threw those codes. Again I persevered and it started on the
> third try, after throwing the codes.
> 
> I'm thisclose to giving up on Audis.  Searching Craigslist for a Honda,
> I found a dealer in MA that also had a nice 2001 A6 2.7T for the same
> money... No, I can't!  But I've been eying them. And then I'd find an
> A6 with 4.2L V8. And I think about an A8. And then I'd find an S8 for
> not a lot more. I think I need a twelve step program or rehab of some
> sort.
> 
> Anyway, if anyone can shed some light on intermittent "Fuel Injector
> Circuit Open" on all 6 injectors, I'd be willing to listen.
> 
> -- 
> Kent McLean
> 1999 A4 Avant, V6 Tiptronic
> 1990 200 Avant mit V8 conversion
> gone: 1990 V8 w/5-speed and other mods
> gone: 1991 200 TQA #3, with mods
> gone: '91 200 TQA x2, '94 100 S Avant, '89 200 TQ "Bad Puppy"
> 
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