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Discussion Starter · #1 ·
http://i1307.photobucket.com/albums/s583/funkygreens/IMAG0213_zps689e7a72.jpg

So I'm driving today and am fine. Go to the store and get back in ,started it up and my check engine light kicks on. I'm not very tech savvy ,so don't know what to look for. I figured l'll have to get a code reader as I'm to understand that a check engine light can be something like a gas cap not put on all the way and so on. I had my oil pan done on the 8th of this month and that's the only thing I am able to think of that may have led to this. Again ,not tech savvy and checked the oil dip stick. Maybe not related to my problem but glad I did. Its been three weeks since the oil pan was done. I made sure the dealer repair slip said 9 quarts and it seems like I'm low for just having it filled. I haven't really gotten on it,maybe a couple times ,mostly normal driving. Haven't put gas in since Friday and I know that it could trigger the engine light so I try to be aware of screwing it on properly. Thanks for any ideas? Gonna take it to work (dealer ) tomorrow.
 

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Discussion Starter · #3 ·
Good idea troy. Thanks. Gonna go right now. Its Sunday and wonder how late places will stay open
 

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Mine just came on last week as well. I just called OnStar and they told me it was an emission code and to make sure my cap was tight. I then called my dealer and they told me that in order for the car to reset and turn the CEL off, the gas cap had to be re-tightened the car had to be fully cooled down and then driven and fully warmed up at least 3 times. I followed those directions and my light went off after it cooled off the third time just like they told me. Go figure lol
 

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Discussion Starter · #5 ·
So went to pep boys and had code read. The guy told me code p0171 or was it p171. Well he said it meant my fuel was running lean. He said I'd have to get it looked at cause it can be a number of things causing this. So I took in his advice and drove home. On the way home I noticed I was under a quarter tank so I stopped off to put gas in her. Put 20 of premium in and tightened the cap. Got in and sat for 30 seconds, fired it up and no check engine light or anything. Only a minute or so drive home but nothing. I don't know if its safe to declare problem solved or is there something else going on to kick on the engine light ?
 

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Discussion Starter · #6 ·
Also what's your guys opinion on that dip stick? Am I low for it having a full 9 quarts and it being three weeks? Took that pic. Of dip stick for a visual of where I'm at.
 

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I have 95k on my g8 and have over 5k since last oil change and it has not burned a drop, so i would say that is bad. I would top it off and keep an eye on it. Maybe they didn't fill it enough at the dealer.
 

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Discussion Starter · #8 ·
I have 95k on my g8 and have over 5k since last oil change and it has not burned a drop, so i would say that is bad. I would top it off and keep an eye on it. Maybe they didn't fill it enough at the dealer.
. Looked and it says they put in the right 9 quarts but yea, back to the dealer cause it seems like its burning fast . Made sure they used mobil 1 too.
 

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Discussion Starter · #9 ·
Took her for a ride tonight to see if it kicked back on and nothing. Still gonna have it looked at for the oil issue and run the engine code by the dealership foreman too.
 

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Discussion Starter · #11 ·
Ha! That was the first thing I tried. It kicked me back
 

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The engine control module (ECM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open Loop and Closed Loop (CL). During Open Loop, the ECM determines fuel delivery based on sensor signals without heated oxygen sensor (HO2S) input. During CL, the ECM adds HO2S inputs and level of purge to calculate the short and long term fuel trim (FT) adjustments. If the HO2S indicates a lean condition, the fuel trim values will be above 0 percent. If the HO2S indicates a rich condition, the FT values will be below 0 percent. The short term FT values change rapidly in response to the HO2S voltage signals. The long term FT makes coarse adjustments in order to maintain an optimum air/fuel ratio. A block of cells contain information arranged in combinations of engine RPM and engine load for a full range of vehicle operating conditions. The long term FT diagnostic is based on an average of cells currently being used. The ECM selects the cells based on the engine speed and load. The FT diagnostic will conduct a test to determine if a rich failure actually exists or if excessive vapor from the evaporative emission (EVAP) canister is causing a rich condition.

If the ECM detects an excessively lean condition, DTC P0171 or P0174 sets. If the ECM detects an excessively rich condition, DTC P0172 or P0175 sets.

Conditions for Running the DTC•DTCs P0030, P0036, P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0120, P0121, P0128, P0130, P0131, P0132, P0133, P0134, P0135, P0136, P0137, P0138, P0140, P0141, P0201–P0208, P0220, P0300, P0301–P0304, P0442, P0443, P0446, P0449, P0452, P0453, P0455, P0496, P1106, P1107, P1114, P1115, P1133, P1516, P2101, P2119, P2120, P2125, P2135, P2138, P2176 are not set.
•The engine is in Closed Loop status.
•The engine coolant temperature (ECT) is between −40 and +150°C (−40 and +302°F).
•The intake air temperature (IAT) is between −20 and +150°C (−4 and +302°F).
•The manifold absolute pressure (MAP) is between 10–255 kPa (1.45–37 psi).
•The vehicle speed is less than 134 km/h (83 mph).
•The engine speed is between 375–7,000 RPM.
•The mass air flow (MAF) is between 1–510 g/s.
•The barometric pressure (BARO) is more than 70 kPa (10.2 psi).
•The fuel level is more than 10 percent.
•This diagnostic runs continuously when the above conditions have been met.
Conditions for Setting the DTC•The average long term FT weighted average value is more or less than a calibrated value.
•The above condition is present for approximately 3 minutes after the Conditions for Running the DTC have been met.
Action Taken When the DTC SetsThe ECM records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the ECM stores this information in the Failure Records. If the diagnostic reports a failure on the second ignition cycle the ECM records the operating conditions at the time of the failure. The ECM writes the operating conditions to the Freeze Frame and updates the Failure Records. The ECM illuminates the malfunction indicator lamp (MIL) when one of the following occur:

•The ECM detects the same fuel trim failure during 2 consecutive trips.
•The ECM detects any fuel trim failure during any subsequent trip if the conditions at the time of failure meet the following criteria:
– The engine load is within 20 percent of the previous test that failed.
– The engine speed is within 375 RPM of the previous test that failed.
– The engine coolant temperature is in the same range of the previous test that failed.
Conditions for Clearing the MIL/DTC•The ECM turns OFF the malfunction indicator lamp (MIL) at the beginning of the fourth ignition cycle, after 3 ignition cycles that the diagnostic runs and does not fail.
•A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
•A history DTC and related Freeze Frame data clears after 40 warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
•Clear the MIL and the DTC with a scan tool.


My guess if not a o2 sensor you have some sort of air leak. I would double check around the engine bay and make sure all vacum line are pushed tight and start listen for any "hissing" air/
 

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Discussion Starter · #13 ·
Thanks sandbum for the info. Appreciate it.
 

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Since you just had work done, clean the MAF and check the air cleaner for being loose and leaking at any connections. Oil level and fuel grade have no effect.
 

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Discussion Starter · #16 ·
Thanks guys. So far it still hasn't turned back on. But ill check the maf and cleaner. Its been three weeks since the work was done,wouldn't it have had this issue sooner if it was in relation to the work done (oil pan seal). ? Oh they want to do an oil consumption test to see if I'm burning oil at a high rate .
 

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Unless you have a lot of soot on the inside of the tail pipe or notice your having to add more than 1 quart of oil between oil changes, You don't have an oil consumption problem. You did have an oil leaking problem, that is why the pan was re-sealed. Keep it out of the dealers hands if you can.
 

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Was your car acting up at all with this issue or was it just the CEL? I had the lean codes thrown at me but my car completely shutdown and went into limp mode and we have yet to determine the issue.
 

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Took her for a ride tonight to see if it kicked back on and nothing. Still gonna have it looked at for the oil issue and run the engine code by the dealership foreman too.

Hello pony killer,

Would you care for some assistance making your appointment with your dealership to check your Check Engine Light issue? I would be happy to help.

Reggie B.
GM Customer Care
 

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Discussion Starter · #20 ·
Unless you have a lot of soot on the inside of the tail pipe or notice your having to add more than 1 quart of oil between oil changes, You don't have an oil consumption problem. You did have an oil leaking problem, that is why the pan was re-sealed. Keep it out of the dealers hands if you can.[/QUOTE

The service work was done three weeks ago and they put fresh oil in. From that time til yesterday, I hadn't added any oil . So I am not sure if its lower then more then one quart . If I'm at the second dot ,I'd think that there's a problem. I don't drive it that much . Some days I take the winter ride. Don't think the tail pipe is that dirty . The dealer is free cause of warranty or I'd just take it to my guy . Thanks for the reply


]No issues other then the light . Car didn't act up .
 
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