On my 2004 duramax LLY the change engine oil light will not reset. The dealer has tried to reset normal way by pressing peddle 3 times and also put computer on truck and it will not reset. Any ideas?

Reset oil service light Honda Pilot. From years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012.
How do you reset oil service light Honda Pilot. From years: 2003, 2004, 2005.

1. Turn off the engine. Press and hold the SELECT/RESET button in the instrument panel and turn the ignition switch to run (one position before starting).
2. Hold the button for at least 10 seconds, until the indicator resets.
3. Turn the ignition off and then start the engine to verify the indicator has been reset.

How to reset oil service light Honda Pilot. From years: 2006, 2007, 2008, 2009, 2010, 2011, 2012.
Resetting the Engine Oil Life Display if maintenance service is done by someone other than your dealer, reset the maintenance minder as
follows:

1. Turn the ignition switch to the ON (II) position.
2. Press the select/reset knob repeatedly until the engine oil life is displayed.
3. Press the select/reset knob for about 10 seconds. The engine oil life and the maintenance item code(s) will blink.
4. Press the select/reset knob for another 5 seconds. The maintenance item code(s) will disappear, and the engine oil life will reset to 100.

All information is taken from the Honda Pilot owners manual.

Reset oil change light. some GM cars and trucks switch on ignition, do not start engine press gas peddle to the floor then release and switch ignition off. This procedure is in the owners manual.

P0238 = Turbo/Super charger boost sensor 'A' Circuit High
http://www.dieselplace.com/forum/63-gm-diesel-engines/40-duramax-second-generation-2004-5-2005-lly/153584-need-kinda-quick-help-p0238-code.html

TO RESET CHANGE OIL LIGHT.TURN IGNITION SWITCH TO RUN POSITION WITH ENGINE OFF.PRESS ACCELERATOR PEDAL QUICKLY 3 TIMES IN 5 SECONDS.THE OIL LIGHT WILL FLASH WHEN IT HAS RESET.

Information taken from: http://www.idavette.net/tech/oilreset.htm

[quote]
The "Change Oil" indicator is reset by using a sequence of Driver Information Center (DIC) key presses as follows:

1. Turn ignition "ON", but do not start engine. (ALDL pin "G" should NOT be grounded.)
2. Press the "ENG/MET" button and release, then, within 5 seconds, press it again.
3. Within 5 seconds of Step 2, press and hold the "GAUGES" button. While the button is held, the "Change Oil" indicator will flash.
4. Continue holding the "GAUGES" button until the "Change Oil" indicator stops flashing and goes out, indicating successful completion of the reset cycle. This should take about 10 seconds.
If it does not successfully reset, turn ignition "OFF" and repeat the procedure from Step 1.
[/quote]

Should be in your manual. But try this- turn key on don't start car press gas pedal 3 times quickly, turn key off. This should reset it. If not check manual

You can reset the light by disconnecting the negative battery cable for about 30 minutes. If there is still an issue with the car after running the car after reconnecting the battery it will come back on. You will need to have it checked with diagnostic tool.

Try this. With the key on and the engine not running push the gas peddle to the floor and release it three times then hold it to the floor until the oil light flashes. This should reset the oil indicator light. It should not take more than about 20 or 30 seconds.Good luck.

oil change reset? do you have steering wheel controls? if so cycle thru to where it says oil life and hold the arrow button until resets

try hooking up a fuel pressure test gauge to fuel rail pre filter and post filter and rev truck to 2500 rpm what is fuel pressure ?
next using a vacume pump attach to fuel pressure regulator pump up while engine is running only pump up to 8 psi to see if pressure changes if not replace pressure regulator .
it could also be ur speed sensor switch on overdrive transmission
good luck with it