Question about 1997 Oldsmobile Regency

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Diagnostic code p0171

Engine sounds like it is flooding on start up when it is hot and has been sitting for thirty minutes to an hour.

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1 Answer

Type: OBD PO171
That is how you look up codes

Won't be flooding it is fuel injected

That code won't cause a starting issue, just
a slight lack of performance & some control
over fuel trim

Posted on Apr 01, 2014

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After hot engine wont start and smells like gas


Most likely causes are bad engine coolant temp sensor OR leaking fuel injectors. Bad engine coolant temp sensor will give computer false reading and computer provides wrong air fuel mixture. Leaking fuel injectors will load the engine with raw gas--just like flooding it. Try pushing the gas pedal to the floor and holding it there when cranking when hot. That forces the computer into "clear flood" mode and it shuts off the injectors. If it starts up with pedal down, that would be a sign of leaking injectors.

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Diagnostic code p0171


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2012 Nissan Versa 1.6, after idling for a about 20 minutes (or while in heavy traffic) engine starts sputtering and eventually would stall. Would no start till cooled off. The following codes come up :...


P0171 and P0174 are telling you that each cylinder bank is running too lean. P0300 is telling you there is a misfire, possibly caused by the other codes. This is why the engine is running rough.

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Grand Cherokee Idles rough then will not start.


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1998 toyota camry 2.2 wont start after running for and hour it will crank over but it wont start if you wait thirty minutes then it will start


Hi Dress, Have a diagnostic inspection carried out and at the same time ask for a new fuel filter to be fitted. After that has been done ask for a fuel pressure test to be carried out on the fuel pump. It should be 3.4 bar and if its lower it requires replacement. Regards John

Feb 02, 2013 | 1998 Toyota Camry

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2004 susuki forenza won't start after i put new head and put in time ,ran good for thirty minutes


Old post but , this answer covers all , of this type symptoms.
new head,
ran for 30 minutes
so does it crank ? ok? if not dont crank, it can start.
so crank is next. (first)
backfiring (true to the air cleaner) usually means TIMING IS way off and sure engines can start with timing way off and then stall and flood out.
nothing new there.
you did not time the engine correctly.

get the FSM on engine. read the pages.
or go to alldata.com and read that.
for others searching using google, my lil. contribution;

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I drive my car 4 five minutes turn it off then i have to let it sit 4 an hour before it will start again it looses spark . would it have anything to do with the coil


I SEEN ENGINE FLOODING DUE TO LEAKING FUEL INJECTORS.THAT WILL MAKE CAR HARD TO START BACK UP WHEN ENGINE HOT.BUT TRY THIS CHANGE AIR FILTER.FILL FUEL TANK UP ADD A CAN OF SEAFOAM IN THE FUEL TANK IT WILL CLEAN FUEL INJECTORS SEE IF THIS MAKES A DIFFERENCE.

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1995 Taurus will not restart after sitting 5 minutes. After sitting for approximately an additional hour will restart.


With the spark dying it sounds like electric problems. Your coil can be failing when it builds up heat sitting. The fan air and air from driving can keep the coil cool but then it acts like a heat sink when the engine sits.
The battery can also play out in heat, have it tested. Finally the ground wires could be dirty. The motor has more compression when hot. This time of year cold oil is not a factor on cold starts, so you do not have problems on the initial start. The starter ground seems okay, but the chassis ground for the ignition could be corroded.

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Runs about thirty miles then acts like flooded or exhaust plugged


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1995 HONDA CIVIC HARD TO START


Get the fuel injectors checked, the rubber seal may be eroded from sitting. When the seals are dry, it will run rough until the gasoline soaks them which causes them to expand. Although you may not see an error message on the dash, the computer itself may signal a problem in particular. It may be an Oxygen or MAF Sensor too.

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