Using too much fuel

2003 OLDSMOBILE ALERO
177,000 MILES • 2.2L • 4 CYL • FWD • AUTOMATIC
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JCTEXWEB1@GMAIL.COM
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Car misses bogs down, there is black smoke coming out the muffler, soot on plugs and muffler and it uses a lot of fuel.
Aug 7, 2016 at 7:39 PM
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RIVERMIKERAT
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Have it scanned for both hard and soft codes. Replace the plugs. Check the plug wires.
Aug 8, 2016 at 7:08 AM
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JCTEXWEB1@GMAIL.COM
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8/8/16 we are having it scanned tomorrow the auto parts scanner does not seem to read enough into the cars symptoms
Aug 8, 2016 at 9:36 PM
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STRAILER
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Has the engine been tuned up recently? Also I would check for a blown fuel pressure regulator.

Here is a guide for you.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Let us know what you find so it can help others.

Best, Ken
Aug 12, 2016 at 9:39 AM
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JCTEXWEB1@GMAIL.COM
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August 13
Car is being used for work fuel pressure regulator not leaking fuel when vacuum line disconnected. Am suspecting maybe a injector wire shorting or the vacuum modulator valve because i neglected to mention that 2nd gear does shift hard. Will keep considering all your suggestions thanks to all and i will be back to confer.
Aug 13, 2016 at 8:44 PM
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STRAILER
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Here is a guide to check the injectors

https://www.2carpros.com/articles/how-to-test-a-fuel-injector


Please let us know what happens

Best, Ken
Aug 15, 2016 at 11:53 AM
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JCTEXWEB1@GMAIL.COM
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Okay
Aug 15, 2016 at 12:42 PM
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JCTEXWEB1@GMAIL.COM
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Car is showing these codes:

P0112 p1171 p0340
Aug 18, 2016 at 6:56 AM
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JCTEXWEB1@GMAIL.COM
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P0112 p1171 p0340

P1171 - Fuel system lean during acceleration

P0340 - Camshaft Position Sensor A Circuit (Bank 1 or single sensor)

P0112 - Intake Air Temperature [IAT] Sensor Circuit Low Voltage
Aug 18, 2016 at 8:20 AM
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STRAILER
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The cam code makes me think the engine has jumped time. Do a compression test and if low check the timing chain. here is a guide and diagram so you can check it out.

https://www.2carpros.com/articles/how-to-test-engine-compression

Please let me know what you find

Best, Ken






Aug 18, 2016 at 11:13 AM
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JCTEXWEB1@GMAIL.COM
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Okay will check thanks
Aug 18, 2016 at 11:49 AM
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JCTEXWEB1@GMAIL.COM
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Have not done compression test yet we got it scanned with a bigger scanner same codes show up so we inspected boots for spark plugs and thet were bad losing spark got them replaced still missing there is a sound coming from manifold thats souns like a light knocking suspecting a valve or a torn gasket.
Aug 20, 2016 at 2:50 PM
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STRAILER
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Please do a compression test to see if one of the cylinders is low on compression which would mean you have a leaking intake valve.

Please let us know what you find so it will help others.

Best, Ken
Aug 21, 2016 at 8:57 AM
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JCTEXWEB1@GMAIL.COM
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Spark plug boots were arcing we changed them but still have original problem i neglected to mention a sound its making and it sounds like a valve. Metal on metal dry tapping. Have not done compression test yet, thats next.
Aug 30, 2016 at 8:08 AM
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RENEE L
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Have you done a compression test yet?
Aug 30, 2016 at 9:09 AM
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JCTEXWEB1@GMAIL.COM
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Okay now car stopped running completely so it probably will be easier to check
Sep 30, 2016 at 6:14 AM
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STRAILER
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Here is a guide that will help, please get back to us

https://www.2carpros.com/articles/car-cranks-but-wont-start

Best, Ken
Sep 30, 2016 at 11:05 AM
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JCTEXWEB1@GMAIL.COM
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Car still not running no money to fix it
Oct 29, 2016 at 8:35 AM
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STRAILER
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Let us know what happens we want to help you get it running.
Oct 30, 2016 at 8:13 PM
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JCTEXWEB1@GMAIL.COM
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Car finally broke down and my son just got rid of it. Thanks for all your time and effort it was appreciated.
Jan 9, 2017 at 8:22 PM
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STRAILER
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Sorry we could not get it fixed for you, please use 2Carpros anytime.
Jan 10, 2017 at 11:13 AM