Re: 1990 V8 Fuel Injection issue

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.
>>
>>
>>