Question about 2002 Chevrolet Malibu

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Sisters car.Won't start.checked intake=filthy,spark plugs=replaced,show me the rest?

CIRCULAR massair flow sensor before the intake(three vertical aluminum elements)how do you clean it out? Filthy inside of the intake manifold, can you tell me the process?. Is there a spray to clean this out?

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  • Chevrolet Master
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Yes, parts stores have a cleaner specifically for the MAF sensor. For inside the intake, there is also a spray (intake cleaner spray?). Some intakes have a special teflon coating to help air movement, and regular carburetor cleaner is not good for that. Use an old toothbrush after spraying the intake to help you clean it out.
You might also check the PCV valve operation, too.
Good luck.

Posted on Feb 26, 2012

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Posted on Jan 02, 2017

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03 Nissan Altima showing codes P0304,P0102,P0154,P0113 what are they and how do i repair the problems.


Hi Chris.

p0304 = Number 4 Cylinder Misfire Detected

Faulty spark plug 4
Clogged or faulty fuel injector 4
Faulty ignition coil 4
Fuel injector 4 harness is open or shorted
Fuel injector 4 circuit poor electrical connection
Ignition coil 4 harness is open or shorted
Ignition coil 4 circuit poor electrical connection
Insufficient cylinder 4 compression
Incorrect fuel pressure
Intake air leak

The P0304 code means that the cylinder 4 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 4.


p0102 = Mass or Volume Air Flow Circuit Low Input

Faulty mass air flow sensor
Intake air leaks
Dirty mass air flow sensor
Dirty mass air filter
Mass air flow sensor harness is open or shorted
Mass air flow sensor circuit poor electrical connection

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner.
Reset code and drive vehicle.
If the code comes back, it may be necessary to replaced the mass air flow sensor.


p0154 = O2 Sensor Circuit No Activity Detected Sensor 1 Bank 2

Faulty Front Heated Oxygen Sensor Bank 2
Front Heated Oxygen Sensor Bank 2 harness is open or shorted
Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks may be faulty
Exhaust gas leaks

Replacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem.


p0113 = Intake Air Temperature Sensor Circuit High

Faulty Intake Air Temperature (IAT) sensor
Dirty air filter
Intake Air Temperature (IAT) sensor harness is open or shorted
Intake Air Temperature (IAT) sensor circuit poor electrical connection

The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM).The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle.



Hope this helps
FYT

http://www.autocodes.com/make/nissan

Mar 26, 2017 | Nissan Cars & Trucks

1 Answer

I have Hyundai i10 three was facing some problem when starting car have black smoke and scan the car fault code is p0171 pls give some solution


CAR IS RUNNING TO RICH ON GAS.
CHECK FUEL PRESSURE FIRST.
CHECK INJECTORS SECOND,
CHECK SPARK PLUGS THIRD.
CHE MASS AIR FLOW METER HOSE FOR BROKEN INTAKE HOSE.
CHECK MASS AIR FLOW METER,
CHECK OXYGEN SENSOR AND WIRES.
CHECK TEMPERATURE SENSOR FOR THE RIGHT VALUES, COUL BE OPEN.

May 22, 2014 | Cars & Trucks

1 Answer

RPMs rev up and wont go down when I shift into park


Massair flow sensor. Evap leak. First tap the massair flow sensor on the intake hose. if it accelerates when tapping replace it if it doesn't check for an evap leak like the pcv elbow.

Mar 17, 2014 | 1998 Ford Taurus SE

1 Answer

Car hesitates during acceleration


if it hesitates only atacceleration check spark plugs or coils could be massair flow sensor or vacuum leak

Sep 26, 2013 | 2008 Honda Accord

1 Answer

Car won't start. Will turn over but not start.


Year, make and model ?
Was there a problem with those parts before you replaced them ?
Have you checked fuel pressure ?
Are you getting spark to the plugs ?

Jan 19, 2013 | Cars & Trucks

1 Answer

I have a 1989 mitsubishi lancer sei


mass air flow sensor, manifold absolute pressure sensor, or spark plug wires.

Jul 09, 2012 | Mitsubishi Cars & Trucks

2 Answers

Changed fuel filter ,added injector cleaner and car still runs rough at idle .what else could it be


Idle problems are almost always a filthy throttle body, which is the most common thing to go wrong with our I6 engines. Clean this first, but disconnect the battery before you do it. We don't have a traditional PCV valve, so the throttle body gets dirty easier than other cars. Must be cleaned at least once a year or more depending on your driving habits.

Spark plugs other than AC Delco 41-103, or the Iridium versions of NGK, Or Denso won't idle as good also. Take Autolight, or Bosch for example, won't idle very well, or last as long.

These two things are the most common, if these don't fix it, check for vacuum leaks, new air filter, upstream 02 sensor. From there, it's gets more in depth and should look to a professional.


May 20, 2011 | 2004 Chevrolet TrailBlazer

2 Answers

2001 won't start. turns over but doesnt even act like its firing. sometimes there is a smell of gas like it is flooded. started back in jan when it was cold. replaced battery and spark plugs to no...


check the color of your spark if it is blue your good if orange replace coil dependig on your setup and if you have 1 coild or 8 coils you many have to check each cylinder seperate just pull out spark plug replace the spark plug wire have someone try to start car and lood at color of spark i should note dont hold the wire just let it rest close by

if that is ok replace your crankshaft postion sensor as it tells the cars ecu when and to what cylinder to fire spark to faulty crankshaft postion sensors 99 percent of the time wont allow car to start or very hard starts the other 1 percent

if it helps please leave good review 4 thumbs

May 09, 2011 | Chevrolet Tracker Cars & Trucks

1 Answer

I have a 1999 oldsmobile intrigue that is misting a lot. It idels rough, and runs rough. I can still take off it is a little slow, but I can still go pretty fast, but it still mist at the high speeds...


fuel pressure regulator on the fuel rail is probably it or the egr valve is stuck open allowing burnt fuel to flood the intake, im leaning towards the fuel pressure regulator because the o2sensor is probably reading rich or if its reading lean then i would choose the egr valve . good luck

Jul 06, 2008 | 1999 Oldsmobile Intrigue

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