[V8] Poor fuel economy

[Mendezwerks Mendezwerks]

This coolant temp sensor at the dealer retails for about $90.
Part # 035919369M
You can get this through NAPA for about $15.00.

Not a bad idea to change, especially at the NAPA price.

On 1/12/09, Ed Kellock <ekellock at gmail.com> wrote:
> If the ecu temp sensor is bad it could be telling the ecu the engine is
> colder than it is and causing the ecu to feed more gas to the engine.  In
> addition this could lead to fouled plugs and damage OXS and cats.
>
>
>
>> -----Original Message-----
>> From: gbmarc at cox.net [mailto:gbmarc at cox.net]
>> Sent: Monday, January 12, 2009 2:24 PM
>> To: Ed Kellock; v8 at audifans.com
>> Cc: v8-request at audifans.com
>> Subject: RE: [V8] Poor fuel economy
>>
>>
>> Breather hoses:
>>    I find it hard to believe that they would loose me 2 or 3mpg?
>>   (of course, I've never tried pulling one off and driving
>> around for a week!  :)
>>
>> distributor caps and rotors:
>> These were replaced (twice actually) about 6 years ago when
>> the incorrectly installed steering arms smashed them.  But I
>> guess they could be deteriorating. The Hall sensor plug on
>> the passenger side distributor has broken off and is taped in
>> place right now.
>>
>> ECU temp sensor on rear of passenger side cylinder head:
>> Is the theory here that the engine isn't allowed to get warm enough?
>>
>> fuel filter:
>> I haven't changed this in 70K miles. But how is it going to
>> give bad mileage? If it's clogged I'll use less, won't I?  :)  hee hee
>>
>> air filter:  is new
>> tire pressures:  new tires, all good
>> junk in the trunk:   trunk empty
>>
>>
>> ---- Ed Kellock <ekellock at gmail.com> wrote:
>> > -breather hoses
>> > -distributor caps and rotors
>> > -ecu temp sensor on rear of passenger side cylinder head
>> -fuel filter
>> > -air filter
>> > -tire pressures
>> > -junk in the trunk
>> >
>> > > -----Original Message-----
>> > > From: v8-bounces at audifans.com
>> > > [mailto:v8-bounces at audifans.com] On Behalf Of gbmarc at cox.net
>> > > Sent: Monday, January 12, 2009 2:04 PM
>> > > To: v8 at audifans.com
>> > > Cc: v8-request at audifans.com
>> > > Subject: [V8] Poor fuel economy
>> > >
>> > >
>> > > I realize that when I come to sell my car I will have to post
>> > > with a pseudonym as everyone will know what a horrendous
>> > > catalogue of complaints my 200K mile car has!  Anyway . . .
>> > > I'm currently only getting about 14mpg around town and 17mpg
>> > > on a longer run. The computer reads about 1 mpg better but I
>> > > know it's lying from filling up and checking odometer
>> > > readings. The car also has an uneven vibration that is
>> > > noticeable when stationary at idle. The Oxygen sensor is
>> > > about a year old and the plugs are even newer. The car seems
>> > > to accelerate OK, but then again, I doubt I would notice the
>> > > difference between 190bhp and 245bhp if it happened slowly
>> > > over time. Any obvious quick checks I can make?
>> > >
>> > > Mark.
>> > >
>> No virus found in this incoming message.
>> Checked by AVG - http://www.avg.com
>> Version: 8.0.176 / Virus Database: 270.10.6/1888 - Release
>> Date: 1/12/2009 7:04 AM
>>
>>
>
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