Question about 2004 Chevrolet Cavalier
Trouble Code: P0172 Fuel System Rich (Bank 1) Possible Causes:
Base engine "mechanical" fault affecting one or more cylindersEVAP system component has failed or canister fuel saturatedFuel control sensor is out of calibration (i.e., ECT, IAT or MAP)Fuel system supplying too much fuel at idle speed or at cruiseFuel injector(s) is leaking or stuck partially open (one or more)HO2S is contaminated, deteriorated or it has failed.Ok Rusty,your mission is to figure and fix,got to go to work in the morning,good luck,this message will self distruct when repair is made.
Fuel System Rich (Bank 1)
Posted on Jan 06, 2013
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Posted on Jan 02, 2017
Check your coil output, buy a cheep spark tester. Pull of a spark plug wire and plug in the tester(ground the other end), set it to bridge a gap for 30,000 volts.Have someone start it and make sure the spark will jump the gap on the tester.Danger-Very high voltage! It will light you up if your touching the tester while the car is running!You'll be able to see a bright blue spark(and hear it as well) if your coil is good.If it's a yellow thin spark it's probably the coil.
If you have good spark, check the fuel filter and fuel pressure at the fuel rail.
Back firing could be timing,cam position or crank position sensor.Worst case scenario, timing chain or belt.
Posted on Jul 27, 2009
have you checked to see if you have a bad came or lifter. that would make it backfire. if it kind of spits fuel it maybe cam. if it throws fire than it could be timing like a bad chain.
Posted on Feb 12, 2010
RECHECK WIRING AND CONNECTIONS..LOAD TEST THE BAT MUST STAYIN HE GREEN FOR 15 SEC. WHILE ESTING OR HAVE 600 CCA. MIN THEN RECHECK FOR SPARK ..
Posted on Mar 20, 2010
What you need to do is check for fuel pressure.The pressure should be 60-66 for central sequential fuel injection and 56-62 for sequential fuel injection.If pressure is good then check for spark at the spark plugs.If you don`t have a way to check for fuel pressure then tap on the gas tank bottom with your foot or hammer while someone is turning the key and trying to start the vehicle.If it starts then replace the fuel pump.If this is good then check coil and ignition module if you are not getting spark.Hope this helps.Good luck.
Posted on Mar 29, 2010
the diesel didnt do anything to the motor unfortanatly it did fry you gas pump and probably clog your injectors that why it wont start, its not getting any gas to the chambers
Posted on Apr 25, 2012
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The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM
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