Question about 2002 Dodge Neon

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02 neon check engine light flashes when hitting the gas, lags and backfires, this happened random, headers were changed and there is no cat, backfireing sounds like it is coming threw the intake and all sensors are intact. im not a dummy when it comes to cars, so if anyone can help me please do so.....

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  • Paul ealer Oct 27, 2008

    broken plug

  • Anonymous Nov 17, 2008

    I have the same problem on my 2003 neon. I have tried it all.

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Try disconnecting the maff sesor

Posted on Oct 25, 2008


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2 Answers

My 01 outback is loosing power and backfires


If check engine light is flashing its plugs or coils maybe injector, but fuel pressure is very important, it will idle ok but not drive good. Other possibility is cat clogged

Mar 08, 2015 | Cars & Trucks

1 Answer

2002 neon revs up to 4000rpms at start and idles up an ddown 1500rpms-2000rpms after. and begins to backfire near engine .


Engine system needs inspection on case of backfire:-----


Check out related help links to troubleshoot the vehicle backfire issues:-----

Feels like backfire from engine when decelerating?

http://schematicsdiagram.blogspot.in/2012/02/feels-like-backfire-from-engine-when.html


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Jeep Backfires?

http://technoanswers.blogspot.in/2012/02/jeep-backfires.html


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Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

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Nissan Pathfinder Backfires?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-backfires.html
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These will help.
Thanks.

Nov 28, 2012 | 1995 Honda Accord

1 Answer

Shifting in higher gears


For Automatic transmission problem,Check the list of help links below.click the link below:----Automatic transmission troubleshooting:----

http://howtobyme.blogspot.com/2011/11/automatic-transmission-will-not-go-into.html

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Automatic transmission shift lever issues?-------

http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html

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AUTOMATIC TRANSMISSION FLUID LEVEL? --

http://schematicsdiagram.blogspot.com/2011/07/how-to-check-automatic-transmission.html

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AUTOMATIC TRANSMISSION FLUID AND FILTER?

http://schematicsdiagram.blogspot.com/2011/07/how-to-change-automatic-transmission.html

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Transmission fault light on car dash?

http://schematicsdiagram.blogspot.com/2011/12/transmission-fault-light-on-car-dash.html

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Transmission shifting problem?

http://schematicsdiagram.blogspot.com/2012/01/transmission-shifting-problem-on-toyota.html

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Transmission Slips out of 2nd gear?

http://repairhelpcenter.blogspot.in/2012/02/transmission-slips-out-of-2nd-gear.html

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OD light flashing and transmission fluid leaking?

http://repairhelpcenter.blogspot.in/2012/02/od-light-flashing-and-transmission.html

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Why Transmission fluid leaks near radiator?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

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transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html

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****** wont go in reverse?

http://technoanswers.blogspot.in/2012/02/dodge-neon-wont-go-in-reverse.html

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Automatic transmission will not go into reverse?

http://technoanswers.blogspot.in/2012/02/dodge-automatic-transmission-will-not.html

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Transmission is making buzzing noise?

http://technoanswers.blogspot.in/2012/02/transmission-is-making-buzzing-noise.html

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This will help.

Thanks.

Feb 09, 2012 | 2000 Isuzu Rodeo

1 Answer

02 avalanche check engine light flashing


Start by making sure the gas cap is secure and tight which can cause this. The most common cause is a random misfire. Your vehicle is 9 years old, so replace the spark plugs and plug wires. Have the check engine light reset and it should solve your problem. If not, have it diagnosed by a professional with a code reader.

Jun 25, 2011 | 2002 Chevrolet Avalanche

1 Answer

My chec engine light comes on after driving for a while, typically 20 miles or so on the freeway, a guy at checker said possibly something in the cat, and recommended sea foam, I know the alternator or the...


Check engine like is it red or yellow? if it's yellow it could be a misfiring spark plug, or a lazy 02 sensor, that means you drive the truck till it gets in closed loop then the 02 sensor is connected to fuel trim and is not changing fast enough causing the light to come on. Since the 02 sensor is bypassed until engine is warm this could be your issue, it could also be a spark plug wire or even the heater on the 02 sensor, since it's a 89 it has a sensor on each side of the engine and one after the cat, if there is a spark plug problem if the check engine light starts flashing it means a catastrophic misfire that will destroy the cat so it is a fuel or spark problem.

Jul 14, 2010 | 1989 Chevrolet Silverado 2500

1 Answer

1990 camry, flashing check engine light, backfiring with no acceleration when gas pedal is applied , engine runs fine at idle.


first you need to find out why the check engine light is on. Try a parts store and see if they will get the code from the computer that will tell you what sensor is bad. If you have not replaced an oxygen sensor by now that is probably what is wrong. If these are bad for too long you will damage the catalytic convertor and it will rattle when the engine is running. backfiring and no acceleration can come from the 02 sensor since this sets fuel delivery.

Apr 24, 2010 | 1990 Toyota Camry

1 Answer

Cylinder #3 or #5 Misfiring, basic Tuneup solves nothing


Well, it could be the coil pack. I assume it has one coil for every one or every two cylinders. Sometimes humidity will cause the coils to arc when they otherwise don't. If one coil serves cylinders 3&5, we might be on to something.

Also, agree that it could be an electronic module -- maybe the electonic ignition module.

One way to check the coils is to spray a liitle water (a mist) onto the coils at night with the engine running (in the dark so the arcs will be more easily seen).

May 04, 2009 | 2001 Dodge Dakota

1 Answer

I have a 1997 neon,it runs but won't idle.any suggestions?


You may have a plugged catalytic converter. When you are on the gas, the engine is basically forcing the air through, but at idle and much lower exhaust pressure, the gas pressure builds up and suffocates the engine.

It should cost around $10 to take it to a shop where they will test it for you. They drill a small hole BEFORE and then AFTER the cat and use a gauge to measure the PSI of airflow. They then weld the 2 small holes shut.

I had this happen to me with my 1995 Neon. It was very confusing until my father suggested I try the "cat" solution. Pretty neat!

Hope this cures it for ya. btw- a new "cat" should run around $200 installed.

Feb 15, 2009 | 1997 Dodge Neon

2 Answers

Check engine light came on


this sounds like the rear 02 sensor is not reading. also toyota has an air-fuel ratio sensor and not a 02 sensor they are diffrent. good luck jimmy

Oct 03, 2008 | 2008 Scion Tc

2 Answers

Transmission fluid in antifreeze resevoir?


The heat exchanger in the rad header on the bottom is shot. You need a new rad, flush the coolant, change the tranny oil and filter, clean out the resevoir.

Jul 29, 2008 | 2002 Dodge Neon

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