Check Engine Light?

You will need to scan and get the code(s)and get back to me, I'll help.
engine stalling could be Mass air flow sensor, or problem with the idle control valve. This guide will help us get the codes so we can fix it

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.

P0171 and P1569. Thanks.

thank you for coming back with codes. I was good at guessing for the mass air flow sensor :-) P0171 is your mass air flow sensor. Remove it and clean it with brake fluid or electronic cleaner , sometime it does the triks. There could be a vacuum leak downstream of the MAF sensor, or the sensor is just faulty . if the fuel filter have never been changed, it time to do it. P1569 , this is a variable tumble control system solenoid valve.it is between the egr valve and egr boost sensor solenoid valve. it may be faulty. there is also a variable tumble control system vacuum switch. check the ground at the switch and check the switch. I have send the diagram in your email and it should be clear there.

Engine Performance problem
2000 Mazda Protege Automatic 147000 miles
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Hi. My check engine light just came on. I got the car from a friend, who had let it sit for over a year. I've noticed that when I am idling at a light in drive that the car jerks forward a little after a few seconds. It's gotten worse since the light came on, and I have to either switch the car to park or keep the brakes pushed in all the way. Also, when the car lurches, there is a spike in the rvm meter, only up to 3 or so. Anyone have any idea what this is?

Get the computer scanned for OBD2 code/s at Autozone and comeback with it this is where we start.

I got the scan, and the code is P0401. EGR flow insufficient. Any idea what I need to have done?

Open the EGR valve and inspect for carbon all over and make sure if its vacuum operated its getting vacuum thru its solenoid

I got the EGR code fixed, but the check engine light came back on. This time the code is P0507, Idle Control System RPM High. Now what?

could a cracked intake hose trip a check engine light that reads 02 sensor bank 1 too lean?

Absolutely.there cant be any air leaks between the Mass Airflow Meter and the engine or the PCM will think it is lean

So, if i replace the intake hose, and reset the check engine light will this take care of this problem? And is there anything else that i can fix along with this problem? Like air filter, and cleaning MAF ? and if so, can i clean the MAF with carb cleaner? Thank you for your time..

Honestly if there is a crack in the hose big enough for you to notice it will lean out the engine. Air is getting in past the MAF, so the PCM doesnt know it is getting in there,but the o2 sensor is reading lean due to the leak. You shouldnt have to do anything besides replace the boot and clear the code. Do not use carb cleaner on the MAF, there are specific cleaners fore that. carb cleaner will leave a residue that will cause more problems

I wonder if you are on the same boat as me... look at the P0171 code...

If you have LX model, there was a recall on the MAF

my 2000 mazda protoge wont start after its been driven for a long distance untill it cools off

Check engine light on

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.

Engine Mechanical problem
2000 Mazda Protege 4 cyl Automatic 147763 miles

My check engine light came on awhile back and it was an EGR code. I got the EGR code fixed, but the check engine light came back on. This time the code is P0507, Idle Control System RPM High. Now what?

Could be caused by a sticky idle air control valve, vacuum leak or maybe even the computer.Try cleaning the Idle air control valve with carb cleaner and also spray around the intake area to see if there is any vacuum leaks, the engine rpm will change slightly when you spray one. What exactly did they do to fix the EGR problem?

There were a few hoses that were cracked. They replaced them and that fixed the EGR problem

need to check for vacuum leaks as advised.

I owe a Mazda Protégé 2000 148,000 miles. My engine came on. I took it to the dealer. The dealer diagnosed it was my spark plugs, Coil wire and a cracked hose. The estimate to fix it was $600.Was it a fair price.

Hi there,

That sounds way to much, i would be getting a second opinion on what is wrong, go to an independent and get a quote before you spend that sort of money.

mark (mhpautos)

I got a transmissions flush done about 6 weeks ago now, since then the tranmission has been acting funny when I try to accelerate uphill it won't go into gear and until I take my foot off the gas and then replace it the car seems to fall into neutral. I took it back to the place I got the flush and they said it was overfilled by their tech so they drained 1 liter of fluid. The problem didn't get better so I took it back again, the place which I won't mention (Canada wide service center) told me to take it to a transmission specialist. I have a appt for next week but in the meantime the check engine light came on yesterday and the O/D light is blinking. Have any ideas on what the problem maybe? It seems to be intermittent to a constant thing.

Hi betsy301,

If the O/D is blinking, it means a system malfunction in the trans electrical or electronics had been detected.

Do you have any other things malfunctioning such as speedometer etc apart from the abnormal gear changes?

Get a scan done to find out what is the malfunction detected and you might solve the problem.

Hi
to answer your question a scan was done and error code found in shifting between the 3rd and 4th gears. I guess they are going to remove the transmission to have a look?[quote:5ad0764042="KHLow2008"]Hi betsy301,

If the O/D is blinking, it means a system malfunction in the trans electrical or electronics had been detected.

Do you have any other things malfunctioning such as speedometer etc apart from the abnormal gear changes?

Get a scan done to find out what is the malfunction detected and you might solve the problem.[/quote:5ad0764042]

Hi betsy301,

Most probably not remove the whole trans, just the solenoids and valve body.

Wonder during transmission flush was the correct type and spec of fluid used?

Was the problem there before the flush?

Good luck.

2000 Mazda Protege Automatic 126556 miles
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My check engine light came on. THey told me that it was running lean.

Use carb spray and shoot it around the intake area to check for vacuum leaks, this will cause a lean condition. Also check/change the fuel filter. If both ok, fuel pressure test is next. Could even be the MAF (Mass Airflow Meter) out of range, try a special MAF cleaner to see if it remedies the problem

Engine Performance problem
2000 Mazda Protege 4 cyl Front Wheel Drive Manual

How complicated is replacing the ECG valve going to be? I want to know what I should prepare for as far as time and money. And does this valve have something to do with car performance going up hills specifically? My car seems to have trouble power wise when going up hills and the check engine light comes on when this occurs. Someone told me it is the ECG valve that is causing it to occur. Is this right?

Hi lpurple14,

I believe you are referring to the EGR ( Exhaust Gas Recirculation ) valve.

When the CEL indicates, a trouble code would be stored in the engine computer.

Get a free scan done at Autozone and let me know the EXACT trouble code. The code would tell us what went wrong and how to go about rectifying the problem. Guessing is not going to work.

Engine Mechanical problem
1999 Mazda Protege Front Wheel Drive Automatic 172119 miles
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About 2 months ago I purchased a used Mazda Protege from a family friend. She had everything on it safetied and brought the car into Mazda for an engine test where they said everything was in really good condition. About a month after having it, the Check engine light came on while I was driving. Just to make sure, we unplugged the battery so it would reset, the light went away, but came on again in about 2 weeks. The car sounds great, starts great, all the fluids have been checked and double checked, the filters were just replaced before I bought it so is this just a sensor problem or should I be spending the money to take it in and get it checked?

take it to autozone, have the code scanned and get back to me.

autozone will scan for free!

post the code, not what the code means.

I would but I live in Canada and we don't have an autozone here .

I will call around and see if I can find a place to scan for free and get back to you. Thanks

[quote:f812ca9c88="Jordoe28"]Engine Mechanical problem
1999 Mazda Protege Front Wheel Drive Automatic 172119 miles
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About 2 months ago I purchased a used Mazda Protege from a family friend. She had everything on it safetied and brought the car into Mazda for an engine test where they said everything was in really good condition. About a month after having it, the Check engine light came on while I was driving. Just to make sure, we unplugged the battery so it would reset, the light went away, but came on again in about 2 weeks. The car sounds great, starts great, all the fluids have been checked and double checked, the filters were just replaced before I bought it so is this just a sensor problem or should I be spending the money to take it in and get it checked?[/quote:f812ca9c88]you can also start by performing a quick visual inspection, look to make sure that no connectors are disconnected under the hood, also make sure that the gas cap is tight and the sealing surface is clean. let us know how it's going eh.

Well so far, since unplugging the battery and reseting everything, the engine light has not come back on. I started a Trip to record my mileage this time and so far I've driven 379 miles. However when it does come back on, like it did the previous times I resetted, I will take it in and get back to you guys. Thanks

I just bought this car off craigs list. I believe that was my first mistake because the engine light came on only 3 days after I had the car. I took it into the shop and they hooked it up and told me that the light was on because the last owner put bad gas in and a sensor in the cadilac converter went bad. About a week later I was sitting in my car with it running waiting for my sister to get off work and the o\d off light came on. I cut my car off and back on and it went away. Do you think that this is a problem and do you know if it can be fixed or if my car will break down soon?

This is also an issue on the ford explorers. There is a solenoid in the tranny that sticks. Causing this light to come on. When you shut down and restart it clears and seems fine. Not so in many cases have the tranny serviced and see if this clears the problem up New filter and fluid is always good on a used car.If the solenoid it bad have it replaced or you could cause more severe transmission issues.

Let me know how it goes and we can try to get it fixed for you.
PS: by the way I own ford explorer that had the exact same issue.just needed tranny service

doesnt sound too major in that case as it should be coming back on right away, when ever its your convinence i would take and have it looked at, just in case.

As far as the cat goes, those Mazdas went through them at about that mileage, nothing the previous owner did. You will notice it haveing driveability issues as the cat plugs itself up internally until it is replaced

I am now at 600 miles and the Check Engine still has not come on after I reset it. Today I did however go to Mr. Lube to get an oil change. They also check everything and the only thing that they noticed was my PCV Emission valve was really plugged .. so they replaced it for 12 dollars.

Could it of been the PCV valve being plugged causing the engine light to come on?

yes that can cause the problem! it can cause the fuel mixture to show as lean or rich. and can also mess with the idle!