Help diagnosing problem / mpg etc.
Posted: Fri Dec 14, 2001 1:45 am
1991 legacy sport sedan auto 130,000 miles bought at 128,000
Problems I am having before replacing anything and after –
- Poor gas mileage. 13-15mpg regardless of type of driving ( I use 92+ oct)
- Sometimes it seems that its not laying all of its power to the ground as it does other times… seems like it wants to but can’t
- Sometimes after driving for a while and I just let it idle every so often I will get an erratic vibration from the engine.. Almost like a shutter. It idles below 400rpm. I tried to adjust it with that screw but it’s all the way in.
- I checked the ecu for codes. I get the codes for o2 sensor and temp sensor.
- I disconnected the battery for 20 hours and tried it again. Same 2 errors even after the 02 sensor.
Here is what I have replaced dealing with under the hood components-
- UR pulley
- Pcv valve
- Fuel filter
- Oil filter
- Oil change
- 02 sensor
- temp sensor (will be this Saturday 12/15/01)
- spark plugs
- spark plug wires
- visually inspect spark coil pack
- replaced a few turbo breather tubes
- checked hose connections and sensor sockets
Notes: according to my el-cheapo boost gauge its about 8.5 max which is normal I think. I also tested some seals with carb cleaner to see if there was a leak. I didn’t notice anything. I have not noticed anything from any of these replacements (good or bad).
I know i posted this in the past but maybe someone might have some more ideas...
Any ideas? Ever seen this before? Anyone….
_____
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Problems I am having before replacing anything and after –
- Poor gas mileage. 13-15mpg regardless of type of driving ( I use 92+ oct)
- Sometimes it seems that its not laying all of its power to the ground as it does other times… seems like it wants to but can’t
- Sometimes after driving for a while and I just let it idle every so often I will get an erratic vibration from the engine.. Almost like a shutter. It idles below 400rpm. I tried to adjust it with that screw but it’s all the way in.
- I checked the ecu for codes. I get the codes for o2 sensor and temp sensor.
- I disconnected the battery for 20 hours and tried it again. Same 2 errors even after the 02 sensor.
Here is what I have replaced dealing with under the hood components-
- UR pulley
- Pcv valve
- Fuel filter
- Oil filter
- Oil change
- 02 sensor
- temp sensor (will be this Saturday 12/15/01)
- spark plugs
- spark plug wires
- visually inspect spark coil pack
- replaced a few turbo breather tubes
- checked hose connections and sensor sockets
Notes: according to my el-cheapo boost gauge its about 8.5 max which is normal I think. I also tested some seals with carb cleaner to see if there was a leak. I didn’t notice anything. I have not noticed anything from any of these replacements (good or bad).
I know i posted this in the past but maybe someone might have some more ideas...
Any ideas? Ever seen this before? Anyone….
_____
Do You Yahoo!?
Check out Yahoo! Shopping <http://rd.yahoo.com/O=1/I=mail/footer/* ... .yahoo.com> and Yahoo! Auctions <http://rd.yahoo.com/O=1/I=mail/footer/* ... .yahoo.com> for all of your holiday gifts!
ADVERTISEMENT
<http://rd.yahoo.com/M=178320.1681224.32 ... /yahoo-76f>
<http://us.adserver.yahoo.com/l?M=178320 ... =805734932>
To unsubscribe from this group, please send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com
zZz <http://docs.yahoo.com/info/terms/> .