On Thu, 08 May 2008 02:04:39 +0000, Mike wrote:
> "Hachiroku ハチロク" <Trueno@[EMAIL PROTECTED]
> wrote in message
> news:uRnUj.15$Gf.4@[EMAIL PROTECTED]
>> First, a bit of background. I might do better if I fix the transmission
>> and the speedo cable. The speedo cable is broken at the tranny, and
>> needs a new piece to make things right. Only $80 for a 6" piece of
>> cable. This will get the speed sensor in the speedometer feeding to the
>> ECU again (the sensor is working, but because the speedo isn't it
>> registers 0 MPH to the ECU.)
>>
>> Add to that two broken solenoids in the tranny. Easy to replace, $80
>> each...
>>
>> Now, I appear to be getting about 12 MPG with the car...I dunno,
>> because I can't calculate it, because...the speedo doesn't work...
>>
>> The recent inspection showed HC, CO at perfect levels for a car this
>> old, almost as good as new. The NOx was almost over. I think it passed
>> by 6 points. Indicative of a plugged Cat? There aren't any other
>> driveability problems, the car rips along pretty well.
>
>
> Check for an inop EGR vavle or plugged EGR pasaages.
>
>
>> Now, I can't remember...to reduce NOx, do you Advance the timing, or
>> Retard it? Last summer I set the timing dead nuts on spec, and then
>> played with it slightly to get the car running smooth and get a little
>> OOMPH out of it, only a degree or so one way or the other.
>
>
> Advancing the timing tends to raise NOx. If the timing is only off by a
> degree or two it should be ok.
>
>
>> Now, about the roof. I havent been driving with the roof on much, so I
>> suppose this isn't helping, either. But it just seems I wasn't putting
>> this much gas in it the past 3 years...
>>
>>
Thanks! I'll check the timing again and have a look at the EGR.
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