[V8] Timing belt change - follow up

[Kneale Brownson]

Spritzing a little water can amplify the night-time sparking display!

On 9/14/2012 10:23 PM, Scott Justusson wrote:
>   Also, take a look at night, arcing wires and cracked distributor caps many times can send you down much more complicated paths than necessary.
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> HTH
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> Scott J
> 91 v8 Auto 3.6
> 92 v8 Auto 4.2 ABT Chipped
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> -----Original Message-----
> From: John Bysinger<doog at bysinger.net>
> To: V8<v8 at audifans.com>
> Sent: Fri, Sep 14, 2012 10:46 pm
> Subject: Re: [V8] Timing belt change - follow up
>
>
> Ok, after some help from fellow listers, I was able to rebuild the
> passenger side distributor.  I completely re-wired the connector to the
> hall sensor, and was able to bench test it with a DC 4.5V source.  I
> thought I may have assembled the ring on the cam side incorrectly, but
> again, thanks to you guys I was able to confirm I got that ring in properly.
>
> But it's still throwing a 2111 and stumbling over ~2500 RPMs in neutral,
> and completely gutless and stalling when in gear.  Just to confirm, I did
> as SJM's ECU page said and reset the memory by pulling the appropriate
> fuse, and trying again, same code.  I pulled the drivers side cover on the
> timing belt to see if there was any odd movement going on w/ the
> tensioner/dampener when it got to those RPMs.  No odd movement there
> either.  According to the SJM site 2111 indicates an RPM sensor failure,
> but I just replaced both of the sensors under the driver's dizzy earlier
> this year, barely 500 miles ago.  I rechecked their harness plugs, both
> were secure.  I also inspected the connectors, wiring and hoses that run on
> top of the engine, no real visible issues that I can tell visually.
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> I'm really at a loss as to where to look next.  I have time this weekend to
> tinker with it, I'm hoping I can get it figured out before the Seattle fall
> rain gets here.
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> Any tips/suggestions at this point would be very helpful.  I do have 'an
> audi guy' who has a shop 15 miles from here I could take it to, but right
> now driving it isn't possible with the stumbling, I'm trying to avoid the
> cost of getting it there if I can.  I blew my Audi budget on the timing
> belt and PS hoses.
>
> -John
> '90 V8Q
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> On Thu, Aug 16, 2012 at 8:42 PM, John Bysinger<doog at bysinger.net>  wrote:
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>> Well I got the timing belt completed, thanks for the recommendation to use
>> BlauParts, their kit and tool rental made it nearly a breeze.  The kit was
>> amazingly complete with seals, pulleys, fluids etc.  I also replaced the
>> fan and oil pump bearings, because like everyone else said, I was in there,
>> might as well.
>>
>> I used this for reference while I was doing the work, proved very helpful:
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>> http://www.audipages.com/Tech_Articles/enginemechanical/A8timingbeltreplacement.pdf
>>
>> It was nearly the same, just different Dizzy setup on the back of the
>> heads.
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>> I also got my leaky power steering fixed while in there, thanks again
>> spokanehose, that was the third hose I've had them done, worked great.
>>
>> But there's always something....
>>
>> I ended up having to trim about 1.5" off the end of the drivers side of
>> the top radiator hose, hose clamp pinched through it causing a leak.  Glad
>> it was there and not elsewhere in the hose so I didn't have to replace it.
>>   But the one remaining issue I'm having is keeping me from getting it back
>> on the road. It's only throwing one code: 2111.  Which based on a search of
>> the list archives is likely the crank position sensor.  Strange.  I just
>> replaced it and it's partner about 3 months before the water pump gave out,
>> so I'm pretty sure the sensor is still fine.  Behavior is it starts and
>> idles just fine, slowly increase the RPMs and around 3k it starts to act
>> like it's skipping or stumbling.  When trying to drive, similar behavior,
>> idles along just fine, try to give it some throttle and it'll stumble and
>> sometimes stall.
>>
>> I tried peaking under the dizzy to see if maybe the plugs had come loose
>> while I was putting the cam lock plates on/off but they look plugged in ok.
>>   I haven't tried re-seating them just yet since there's quite a bit of
>> engine bits in the way there and I was losing sunlight.  Thought I would
>> see if anyone had any suggestions for something to check besides those two
>> sensors hidden behind the drivers side header.
>>
>> Only other noteworthy item is on the passenger dizzy there's a sensor that
>> the plug socket had crumbled a bit, I cleaned it up and made a clamp of
>> sorts to hold it in place, could that be my issue?
>>
>> -John
>> john at bysinger.net
>> '90 V8Q
>>
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