Toyota check engine light

It has come on for a few weeks now. Last week I cleaned the MAF and the light came back the second day.

SOme info:

P0171 OBD-II Trouble Code

Technical DescriptionSystem Too Lean (Bank 1)

What does that mean?Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.

Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time.

SymptomsYou will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.


Ocode P0171 may mean that one or more of the following has happened:

•The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
•There could be a vacuum leak downstream of the MAF sensor.

Possible SolutionsPossible solutions include:

•In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
•Inspect all vacuum and PCV hoses, replace if necessary
•Check for a dirty fuel filter and proper fuel pressure

Toyota maint light

It came on after 5,000 miles. (now 53400 miles)
Turned it off by:
1) Insert key
2) Let show odometer reading
3) Held down trip meter reset button while turn the key to on position

The meter will read
-----
---
--
-
then
0000000

HP D530 Computer

Bought from TigerDirect for $150 (12/29/2009)

HP Compaq D530 Desktop PC - Intel Pentium 4 3.06GHz, 1GB DDR, 40GB HDD, CD-ROM, Windows XP Professional (Off-Lease) (M977-10063)

Cyberpower Battery Backup

Bought from Frys $39 after rabate of 10 (12/17/2009)

Cyberpower 685VA/390W.

Will stay up 58 minites for 70 watts load (One PC)

Blue 401

01/01/10: 73043. Performance: 6.42% for the last 12 months.

03/31/09: 57369
xx/xx/09: transfer from pic 22308
01/01/09: 30664


11/07/2008 bought Dryden S&P 500 Index Fund 169.6891 shares at 58.93 = 10000. SP500 closed at 931.00.


08/07/2009 Sold Dryden S&P 500 Index Fund shares at = 11084. SP500 closed at 1010.48.

2009 Las Vegas, Grand Canyon, Zion, Red Rock

December 22 - 28. From Hotel window.



December 24 - 25.


December 27.



December 28.