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What causes a p0153 code to occur

I have also noticed gas smell upon starting engine and my mileage has gone down by half.

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  • Cars & Trucks Master
  • 641 Answers

The mobile version is not telling me the year, make and model and engine size of your vehicle or you neglected to put it. The code is for an oxygen sensor slow response. Check for vacuum leaks exhaust leaks, fuel injector leaking....

Posted on Jul 29, 2013

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Posted on Jan 02, 2017

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  • 62 Answers

SOURCE: idle low then hi, and gas smell, and bad gas mileage

This should show up easily on the ECU diagnostics computer at a mercedes dealership. Basically your fuel mixture is way too rich causing your car to be heavy on gas, have a raw gasoline smell, and not run right. Something like this can be caused by a defective oxygen sensor (but that usually produces a check engine light) or it might even be a defective ECU. There is really not way of knowing for sure until you do a proper diagnostics where they hook up your exhaust at the same time and do an emmission test. In most cases it's some sensor that needs replacing.

Posted on Aug 28, 2008

Brian032472
  • 150 Answers

SOURCE: engine won't idle

problem sounds like IAC (idle air control) or EGR (exhaust gas recirculation) Is there a check engine (MIL) light on with rhe issue. I just replaced an EGR valve on a camry this weekend with the same issue.

Posted on Nov 02, 2008

  • 76 Answers

SOURCE: poor gas mileage on my jeep liberty

change your spark plugs if they haven't been changed in awhile. check your tires for the propper psi there should be a sticker on the inside of your drivers door that will tell you recomended air pressures go by this not the recomendations on the tires. also where are you getting you gas does it contain ethanol sometimes this can burn faster.

Posted on Feb 05, 2009

philschneide
  • 448 Answers

SOURCE: Check engine light came on. Code P1456.

Did you change the gas cap with a Honda gas cap? Tighten it at least three clicks?
Also, Honda recommends that you never top off the tank when getting gas (only go to the click-off of the pump; otherwise you can get back flow into the system that will cause the code).
Tightening or replacing the cap will not immediately cause the light to go off; it can take up to three days of driving for the light to reset.
To check if your readiness codes (emission system) are set, turn the ignition to ON (II), without starting the engine. The Malfunction Indicator Lamp will come on for 20 seconds. If it then goes off, the readiness codes are set. If it blinks 5 times, the readiness codes are not set.
You can, of course, try resetting your engine light to see if it will come back on (which it probably will). I believe the procedure is:
Turn off the engine.
Press and hold the Select/Reset knob (odometer) in the instrument panel, then turn the ignition switch to ON (II).
Hold the knob for approximately ten seconds until the indicator resets.

Hope this helps you.

Posted on Nov 17, 2009

  • 1 Answer

SOURCE: Poor gas mileage 2000 S10 4.3L 4WD

I disagree with changing the MAF sensor. I had the same problem for about 4 years until today on my 2000 s10 4.3 4wd 125K. It runs like new, and all i did was paid 6 bucks for a can of mass air flow sensor cleaner from auto zone. Try this!! it was awesome the results

Posted on Jun 24, 2010

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1 Answer

P0153


P0153 refers to a faulty oxygen sensor, broken or frayed wiring (to the sensor), or an exhaust leak. Some inspecting and testing will be needed to confirm. Do you hear any exhaust leaks or notice that your car is using more fuel than it used to? O2 sensors are good for 100K miles but I have seen them fail sooner or later. How does the car run? When was the last time it received a complete tune-up? Do you keep the gas tank full? Something to think about, sometimes an engine light will come on, you'll get a code for something specific, replace it and the problem is still there. I'm telling you this because it will only be through testing and checking parts, that you will narrow your search down to the cause. This code may have been triggered due to a vacuum leak or a dirty or defective MAF sensor. If an undetermined amount of air is going into the engine, it could trigger this code as well. Take your time and be thorough. Sometimes we get lucky and sometimes we have to wait till it is figured out. Write back if you have any questions, good luck.

Mar 08, 2014 | 2005 Chrysler 300

1 Answer

Burning smell from engine, poor gas mileage


run the fault codes and check for problem heated oxygen sensors(HO2S) and blocked cat converters

Nov 10, 2017 | Hyundai Elantra Cars & Trucks

2 Answers

Stalls out when gas is let off


You don't say what size engine you have, so diagnostic analysis is a bit difficult. Please supply engine size and answer these questions.

1. After it stalls, do you sometimes smell fuel?
2. Does it restart easily after a stall, or do you have to hold the gas pedal to the floor to restart it?
3. Can you keep it running by working the gas pedal?
4. Has you fuel consumption increased since this began?

I ask these questions because on most engines there is a coolant temperature sensor that the ECM used to control the amount of fuel to the injectors based upon the engine coolant temperature. When the engine is cold it supplied more fuel than when warm. If the sensor malfunctions it tells the ECM that the coolant is -40F
and that causes massive fuel to be supplied. This may not affect a cold start once the engine needs the fuel, but it will flood and stall out the motor when warm. If you can keep the engine running by pressing the gas pedal, you are allowing the motor to rev up and use the extra fuel, but you will find you gas mileage reduces by as much as half.

Nov 06, 2013 | 2003 GMC Yukon XL

1 Answer

Isuzu rodeo gas smell


check the cutoff soleniod on top of gas converter incoming side cos the engine starts on petrol ive got the same truck colin down under

Nov 24, 2012 | 2001 Isuzu Rodeo

1 Answer

2001 Rodeo smells like gas constantly and the gas mileage has went to ****, can't locate any leak what so ever? Just started a couple months ago and slowly noticed the gas mileage. Someone told me after...


CHECK EVAP SYSTEM CHECK EVAP CHARCOAL CANISTER COULD BE GAS SOAKED. OR THE PURGE CONTROL SOLENOID NOT WORKING.ITS NOT CONTROLING FUEL VAPORS FROM CANISTER TO INTAKE MANIFOLD.

Jan 24, 2011 | 2001 Isuzu Rodeo

1 Answer

I have a 1999 grand prix gt and i noticed a smell in the oil when i was going to change the valve cover gaskets and i have no idea why it would smell like gas


Fuel does get by the rings on all engines. If you have not completed an oil change within the recommended mileage this may be the cause. It could be caused by high miles on the engine as well.

Dec 05, 2010 | Pontiac Grand Prix Cars & Trucks

2 Answers

Buick regal 92 3.8L Horrible fuel mileage


Sounds like you might have an oxygen sensor problem. Your catalytic converter(s) maybe defective or dirty. That in turn can dirty up the oxygen sensor. A defective oxygen sensor will send faulty info to the computer, interpreting the fumes as cold (even when the engine warms up). That causes the computer to adjust the fuel mixture to very rich, giving you poor gas mileage and the fuel smell. Hope it helps.

Mar 16, 2010 | 1992 Buick Regal

1 Answer

Engine won't idle


problem sounds like IAC (idle air control) or EGR (exhaust gas recirculation) Is there a check engine (MIL) light on with rhe issue. I just replaced an EGR valve on a camry this weekend with the same issue.

Nov 02, 2008 | 1992 Toyota Tercel

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