Ordered the O2 sensor today, should be in tomorrow. Thanks for the help.
will keep you posted
"TonyJ" <"tonyjnospam at nospam visi.com"> wrote in message
news:13se3bn4kejehe5@[EMAIL PROTECTED]
>I talked with a friend who has a lot of recent experience with these and
>his thoughts are (in this order of importance):
>
> - O2 sensor is covered with carbon due to running rich. The only reason
> that the O2 would throw an error code is if its internal heating element
> is bad.
>
> - Normal tune-up issues - Caps, rotors, wires and plugs
>
> - Log the fuel pressure over a low and high mileage cycle to find if the
> fuel pressure regulator is on the way out.
>
> Me. I bet on the O2 sensor.
>
> Let us know what you find.
>
> Bill Mote wrote:
>> The return and supply line are in good condition with no signs of rust.
>> The V8 has full electronic injection - Motronic. I will look for the
>> multifunction plug and check for corrosion. Engine temp both oil and
>> water are right on normal. Other than the injection system running full
>> rich, all seems normal.
>> "TonyJ" <"tonyjnospam at nospam visi.com"> wrote in message
>> news:13sckfj12123515@[EMAIL PROTECTED]
>>
>>> The T44 series had a problem with leaks in the steel gas lines that
run
>>> under the car on the passenger side. The problem is that the plastic
>>> clips that hold it to the underside of the car hold moisture and cause
>>> rust.
>>>
>>> If you smell fuel when walking by the right side of the car in a
closed
>>> area with no wind, that may be something to check.
>>>
>>> Does the V8 have CIS or fully electronic injection. I am more familiar
>>> with the CIS from the I5s.
>>>
>>> I seem to remember that the V8 has an electronic multi-function plug
>>> somewhere on the top of the engine, possibly in the front. When these
>>> get wet or corroded they cause a number of problems.
>>>
>>> Is the engine temperature running at the normal level?
>>>
>>> Bill Mote wrote:
>>>
>>>> I run Techron about every 10th tank or so. I should add that this
issue
>>>> occurred very suddenly, and is also intermittent. I can be driving at
>>>> 70 mph show 12 - 14 mpg on the level and then suddenly the mileage
>>>> jumps up to 21 -22 mpg. Overall average for the past 200 miles has
>>>> been in the 11 - 12 mpg range, prior to that it was always in the 21
-
>>>> 24 mpg avg. for freeway speeds.
>>>> "TonyJ" <tonyj@[EMAIL PROTECTED]
> wrote in message
>>>> news:13sbul2liecaqbd@[EMAIL PROTECTED]
>>>>
>>>>
>>>>> Bill Mote wrote:
>>>>>
>>>>>
>>>>>> The fuel economy on my car has gone approximately in half. Went
from
>>>>>> around 22 mpg at 70 mph to around 10 to 11. I replaced the temp
>>>>>> sensor, checked the mass air flow sensor, checked the idle speed
>>>>>> motor? and have cleaned the throttle body. Also replaced the air
>>>>>> filter all to no avail. No codes in computer.
>>>>>> What am I missing??
>>>>>>
>>>>>> Many thanks
>>>>>> Bill
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> Winter fuel blends.
>>>>>
>>>>> May have dirty injectors with poor spray pattern. Try some Techron
>>>>> injector cleaner.
>>>>>
>>>>
>>>>
>>
>>
>>
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