Mazda 3 problems.. Check engine light on, nothing appears wrong?

Question

Mazda 3 problems.. Check engine light on, nothing appears wrong?

Answer 1

In 1996 the feds mandated that all cars should have a common "D" connector to connect to a reader to determine engine light codes. Take it to NAPA, Auto Zone or Pep Boys for a free evaluation.

BTW, oil is the life blood of an engine and if you can't afford oil changes, you should check for bus routes and park the car.

Answer 2

Any good auto parts store (Checker, Advanced, NAPA auto parts) should have a code reader they'd let you use (they'll walk out and check it).

Answer 3

Mazda 3 Check Engine Light

Answer 4

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(Check Engine Light) There are many components that work together in the engine to maintain optimal engine performance and economy. A service engine soon, or check engine light indicates that there is a sensor that is reading a condition that is "out of range". Simply resetting the light does not solve the initial cause of the problem. Replacing a number of parts trying to troubleshoot the problem in the hopes of getting the light to stay off is a tremendous waste of time and money. The simplest, and most economical way to alleviate your issue, is to have an engine diagnostic done by a reputable shop to determine what caused the computer to signal you to begin with. Just reading the computer codes may not find the "cause". That being said, if per-chance you feel the need to reset the light in the hopes that it was a "glitch" of some kind, you could disconnect the negative battery terminal for a couple of minutes to clear the check engine light. (ignition key turned on)

Answer 5

If the your car has gone to 3 different shops and their code reader detected a fault with the same code and has been replaced with a new one then the problem may lye in the a faulty wire to or from the main computer. Depending on the code reader they were using may not have the capability to perform a function that will reset adaptation or monitor the suspected part. Some late model cars have the capability of flashing the prom chip in the computer that fixes any known bugs in the chip. I suggest taking the car to the GMC dealer because they have the proper test equipment to monitor and performed specific activation test to isolate the problem. Your chances of them finding the culprit is much likely than a shop that doesn't have the proper equipment. If they do pinpoint the problem in a timely fashion they will call u give an accurate estimate to repair it. And that's when u decide if it's not worth fixing. But give them a try. It beats financing a new car and keeping the extra funds for more important things. Good luck!

Answer 6

you know what i live in California and i can probably find 5 shops in my area that would help you out. try autozone for one. ill give you a list of problems that will not have any visual evidence. try tightening the gas cap, that one does it quite often, listen for three clicks.

p0100 mass (maf) or volume (vaf) air flow circuit malfunction

p0101 maf or vaf circuit range performance problem

p0102 maf or vaf circuit low out input

p0103 maf or vaf circuit high output

p0104 mass or volume air flow circuit intermittent

p0105 manifold absolute (map) or barometric (baro) pressure circuit malfunction

p0106 map or baro circuit range performance problem

p0107 map or baro circuit low range

p0108 map or baro circuit high range

p0109 map circuit intermittent

p0110 intake air temperature (iat) circuit malfunction

p0111 iat circuit circuit range performance problem

p0112 iat circuit low input

p0113 iat circuit high input

p0114 iat circuit intermittent

p0115 engine coolant temperature (ect) circuit malfunction

p0116 ect circuit range performance problem

p0117 ect low input

p0118 ect high input

p0119 ect circuit intermittent

p0120 throttle position (tp) circuit malfunction

p0121 tp circuit range performance problem

p0122 tp circuit low input

p0123 tp circuit high input

p0124 tp circuit intermittent

p0125 excessive time to enter closed loop

p0126 insufficient ect for stable operation

p0128 coolant temperature below thermostat regulating temperature

p0130 oxygen sensor 1, bank 1 circuit malfunction

p0131 oxygen sensor 1, bank 1 low voltage

p0132 oxygen sensor 1, bank 1 high voltage

p0133 oxygen sensor 1, bank 1 slow response

p0134 oxygen sensor 1, bank 1 no activity

p0135 oxygen sensor 1, bank 1 heater malfunction

p0136 oxygen sensor 2, bank 1 circuit malfunction

p0137 oxygen sensor 2, bank 1 low voltage

p0138 oxygen sensor 2, bank 1 high voltage

p0139 oxygen sensor 2, bank 1 slow response

p0140 oxygen sensor 2, bank 1 no activity

p0141 oxygen sensor 2, bank 1 heater malfunction

p0142 oxygen sensor 3, bank 1 circuit malfunction

p0143 oxygen sensor 3, bank 1 low voltage

p0144 oxygen sensor 3, bank 1 high voltage

p0145 oxygen sensor 3, bank 1 slow response

p0146 oxygen sensor 3, bank 1 no activity

p0147 oxygen sensor 3, bank 1 heater malfunction

p0150 oxygen sensor 1, bank 2 circuit malfunction

p0151 oxygen sensor 1, bank 2 low voltage

p0152 oxygen sensor 1, bank 2 high voltage

p0153 oxygen sensor 1, bank 2 slow response

p0154 oxygen sensor 1, bank 2 no activity

p0155 oxygen sensor 1, bank 2 heater malfunction

p0156 oxygen sensor 1, bank 2 circuit malfunction

p0157 oxygen sensor 2, bank 2 low voltage

p0158 oxygen sensor 2, bank 2 high voltage

p0159 oxygen sensor 2, bank 2 slow response

p0160 oxygen sensor 3, bank 2 no activity

p0161 oxygen sensor 3, bank 2 heater malfunction

p0162 oxygen sensor 3, bank 2 circuit malfunction

p0163 oxygen sensor 3, bank 2 low voltage

p0164 oxygen sensor 3, bank 2 high voltage

p0165 oxygen sensor 3, bank 2 slow response

p0166 oxygen sensor 3, bank 2 no activity

p0167 oxygen sensor 3, bank 2 heater malfunction

p0169 fuel composition sensor

p0170 fuel trim (ft) malfunction

p0171 system too lean, bank 1

p0172 system too rich, bank 1

p0173 fuel trim (ft) malfunction, bank 2

p0174 system too lean, bank 2

p0175 system too rich, bank 2

p0176 fuel composition sensor circuit malfunction

p0177 fuel composition sensor range performance

po178 fuel composition sensor low input

p0179 fuel composition sensor high input

p0180 fuel temperature sensor circuit malfunction

p0181 fuel temperature sensor range performance

p0182 fuel temperature sensor low input

p0183 fuel temperature sensor high input

p0184 fuel temperature sensor circuit intermittent

p0185 fuel temperature sensor 2 circuit malfunction

p0186 fuel temperature sensor 2 range performance

p0187 fuel temperature sensor 2 low input

p0188 fuel temperature sensor 2 high input

p0189 fuel temperature sensor 2 circuit intermittent

p0190 fuel rail pressure sensor circuit

p0191 fuel rail pressure sensor circuit performance

p0192 fuel rail pressure sensor circuit low voltage

p0193 fuel rail pressure sensor circuit high voltage

p0194 fuel rail pressure sensor circuit intermittent

p0195 engine oil temperature sensor

p0196 engine oil temperature sensor performance

p0197 engine oil temperature sensor low voltage

p0197 engine oil temperature sensor high voltage

p0198 engine oil temperature sensor intermittent

p02 fuel and air metering

p0200 injector control circuit

p0201 injector circuit malfunction, cylinder 1

p0202 injector circuit malfunction, cylinder 2

p0203 injector circuit malfunction, cylinder 3

p0204 injector circuit malfunction, cylinder 4

p0205 injector circuit malfunction, cylinder 5

p0206 injector circuit malfunction, cylinder 6

p0207 injector circuit malfunction, cylinder 7

p0208 injector circuit malfunction, cylinder 8

Answer 7

go to autozone or advance they have testers that they can check it for you for free.

Answer 8

Did they change the filter when they changed the oil? is the oil level correct (when parked on flat ground)? Sorry I can't help with the OBD II, however if you take it to autozone they will do the diagnostic for free which will tell you which part needs attention.

Answer 9

If the light is on there is something wrong..I burned out a Chevy engine because I didn't believe the light..

Answer 10

the check engine light comes on for multiple reasons. My check engine light came on for a messed up oxygen meter. It could be many reasons that you cant see from just looking at the engine. I would go get it checked out before it becomes a more serious and/or expensive problem.

Answer 11

Mazda 3 Problems

Answer 12

This Site Might Help You.



RE:

Mazda 3 problems.. Check engine light on, nothing appears wrong?

I drove to work today, it was fine. I got in my car at lunch, and the check engine light was on, and nothing appeared wrong. I immediately get ulcer- bad stressed. I am broker than broke and can't afford any extra expenses. I checked the oil, which was almost completely gone (I'm not kidding about...

Answer 13

I don't have a Mazda, I have a Subaru, but I had a similar problem over the winter last year. When I had it checked, they told me that one of the sensors was malfunctioning and not reading correctly, causing the check engine light to come on even though there was nothing wrong with it. Maybe you have the same problem?

Answer 14

It could be just a reminder that many miles have been covered since your last service interval and you may be due for service. If the light goes out and the car seems to be running ok, you just may need to have the service reminder reset, or maybe it is time to have your car serviced by an authorized service provider. If the car is running properly I would not worry too much, but if you are really concerned and worried it would be best to see your dealer/service provider. As an afterthought however if you are concerned with your automobile it might be advisable to check your oil level more often and have it changed on a more regular basis. Dirty oil/low oil is possibly the most damaging thing that a car can be exposed to.

Answer 15

a Flashing light means BAD! solid is just a emissions related malfunction and yes autozone or checker(soon to be O'riely) will pull the code but ask for the number Pxxxx .. Cxxxx .. Uxxx ...it makes a difference. P are engine/trans . C are chassis . U=bad . I just read ur update (lawers suck!) go to http://www.alldatadiy.com/ pay the 15 bucks and see if you can get blink codes. start there.

Answer 16

According to Mazda the most common reason for the light is that you haven't put your gas cap on tightly enough. If that isn't the case they say it's electrical.

Answer 17

O2 sensors maybe?

probably an emissions iregularity

Answer 18

just ignor it.seriously, don't worry about it.

You can

1)not fillup with gas at Holiday, and

2)Disconnect one battery cable and re-connect it. that will 'reset' or shutoff the light



probably means water in the gas tank from filling up at a crappy gas station