All my vehicles seem to suffer from the same issue. I think it may be a faulty switch.regent wrote:I've noticed a drastic improvement in efficiency when I disable the 'sport mode' on the device located between the seat and the steering column...
Getting only 15-16 MPG combined driving...
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Ben850
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- Year and Model: 1996 850 R Wagon
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Re: Getting only 15-16 MPG combined driving...
1993 850 GLT , You wouldn't know it.
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)
1996 850 Turbo Wagon White.
1995 T-5R Black. New work in progress.
1998 V70 XC Cross Country White.
1994 850 N/A Wagon Black.
1997 850 Sedan Black.
1996 850R Wagon White.
1997 850 Sedan Red ( not white or black!)
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850 LPT
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Sometimes you just blow a fuse....Ben850 wrote:All my vehicles seem to suffer from the same issue. I think it may be a faulty switch.regent wrote:I've noticed a drastic improvement in efficiency when I disable the 'sport mode' on the device located between the seat and the steering column...
98' S70, base, 5-speed manual, pewter/ tan, 145k miles
99' S70, base, 5-speed manual, nautic blue/ tan, 225k miles, currently inop
06' V70, auto, willow green/ charcoal, 147k miles
79' Ford Capri S, Euro Spec 2.8 V6, T9 5-speed manual, owned since 1986
58' Porsche Diesel Junior
13' Honda Odyssey
84' Mercedes 300 D, gold/ tan, 420k miles (retirement project )
99' S70, base, 5-speed manual, nautic blue/ tan, 225k miles, currently inop
06' V70, auto, willow green/ charcoal, 147k miles
79' Ford Capri S, Euro Spec 2.8 V6, T9 5-speed manual, owned since 1986
58' Porsche Diesel Junior
13' Honda Odyssey
84' Mercedes 300 D, gold/ tan, 420k miles (retirement project
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regent
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Another good good reason why we usually DO NOT spin wheels on takeoff (especially with rotary wings)850 LPT wrote:Sometimes you just blow a fuse....Ben850 wrote:All my vehicles seem to suffer from the same issue. I think it may be a faulty switch.regent wrote:I've noticed a drastic improvement in efficiency when I disable the 'sport mode' on the device located between the seat and the steering column...
Example of Precision: Measure with a Micrometer, mark it with Chalk, and then cut it with an Axe.
Disclaimer: We (very) seldom do that
2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired
1987 340 DL - retired
Disclaimer: We (very) seldom do that
2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired
1987 340 DL - retired
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TheLoneAviator
- Posts: 63
- Joined: 14 August 2014
- Year and Model: V70 1998 AWD
- Location: Texas
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If I disable the SPORT mode, it's a DOG between 0 -40mph. A crippled three-legged DOG. Maybe a front two legged dog dragging a doggie wheel cart. Everyone, including the VW Beetle pulls away from a stop leaving me behind wondering "where did everybody go-" Like I just passed gas.
The Sport mode should "mostly" just kick in the turbo much sooner. I can't see that costing 5mpg. 2 maybe but what do I know? I'm, still sitting at the stop light sniffin my Musk for men. Sport Mode gets outta Doggie-wheelchair mode at 25ish mph.
My attention is now focused on the CAT. I'm wondering if it's partially clogged/blocked. I put a VAC gauge on the intake and at idle I get 12"inHg; - at 2500RPM I get 13"Hg. That SEEMS AWFULLY Low to me, I don't think the Turbo is blowing while in park to cause that is it?
What do the more experienced Readers say?
I don't have an adapter to hook a gauge to the exhaust.
Thanks,
The Sport mode should "mostly" just kick in the turbo much sooner. I can't see that costing 5mpg. 2 maybe but what do I know? I'm, still sitting at the stop light sniffin my Musk for men. Sport Mode gets outta Doggie-wheelchair mode at 25ish mph.
My attention is now focused on the CAT. I'm wondering if it's partially clogged/blocked. I put a VAC gauge on the intake and at idle I get 12"inHg; - at 2500RPM I get 13"Hg. That SEEMS AWFULLY Low to me, I don't think the Turbo is blowing while in park to cause that is it?
What do the more experienced Readers say?
I don't have an adapter to hook a gauge to the exhaust.
Thanks,
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TheLoneAviator
- Posts: 63
- Joined: 14 August 2014
- Year and Model: V70 1998 AWD
- Location: Texas
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Ok, just ran a drive test with a vac/boost ga attached. Sport mode just kicks the boost in sooner, even econ mode it hits 9psi when your foots in it. The vac only goes down to about 10" when throttle closed. I would think ~15 to18" would be normal vacuum.? There are NO vacuum leaks, no codes.
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TheLoneAviator
- Posts: 63
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- Year and Model: V70 1998 AWD
- Location: Texas
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Exhaust Temp in to Cat is 450*F
Out is 330*F
That mean anything?
Out is 330*F
That mean anything?
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TheLoneAviator
- Posts: 63
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- Year and Model: V70 1998 AWD
- Location: Texas
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2nd drive 2 miles
temp IN 620*F
Temp OUT 520*F
seems the outlet temp should be Higher shouldn't it?
temp IN 620*F
Temp OUT 520*F
seems the outlet temp should be Higher shouldn't it?
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regent
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Dumb question: Are those calculated temperatures or you do have thermocouples installed in the cat? If 'calculated' then you are seeing some average or whatever intergal values calculated by the computer.
If you have probes installed, the accuracy of any real-time reading of temperature in a dynamic viscous flow depends a great deal on the method and calibration of the probes.
So, I would not worry much about it
If you have probes installed, the accuracy of any real-time reading of temperature in a dynamic viscous flow depends a great deal on the method and calibration of the probes.
So, I would not worry much about it
Example of Precision: Measure with a Micrometer, mark it with Chalk, and then cut it with an Axe.
Disclaimer: We (very) seldom do that
2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired
1987 340 DL - retired
Disclaimer: We (very) seldom do that
2015 BMW 335i
2015 XC60 T5 Premier Plus
2002 S60 2.4 n/a - retired
1987 340 DL - retired
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mecheng
- Posts: 1271
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- Year and Model: 1998 Volvo S70 T5
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10" HG vacuum is low
I get
15"HG in Drive
18" HG in park
If you can't find the leak, get a shop to smoke test it
I get
15"HG in Drive
18" HG in park
If you can't find the leak, get a shop to smoke test it
1998 Volvo S70 T5 - SE - 240km - Sold July 2018
1997 Volvo 850 GLT - 190km
Boost is my drug of choice
1997 Volvo 850 GLT - 190km
Boost is my drug of choice
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TheLoneAviator
- Posts: 63
- Joined: 14 August 2014
- Year and Model: V70 1998 AWD
- Location: Texas
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RE: Temps- pyrometer readings, Midas tells me those are normal readings. Conflicting info on the net. NOT the cat.
Diagnostics Results From Volvo independent Guy: $90
PCV system is BAD, source of vacuum leak.
New O2 sensor from AutoZone is not working.
MAF is not working.mass air flow.
Obviously these are the cause of the bad mileage.
Diagnostics Results From Volvo independent Guy: $90
PCV system is BAD, source of vacuum leak.
New O2 sensor from AutoZone is not working.
MAF is not working.mass air flow.
Obviously these are the cause of the bad mileage.
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