2001 Protege 2.0 random misfire - symptoms
- Thread starter rtrussel
- Start date
Good luck. Let me know what they say. I can't get it to throw a code after switching the injectors.
Really? Hmm, strange...
Well, they found that I need a new intake manifold gasket! So, cheap part, not so easy fix. But its okay, now that I know I'll be able to do something about it! I have friends saying they'll help me already so I'm not worried about getting it done. Just gotta buy the part!
Well, they found that I need a new intake manifold gasket! So, cheap part, not so easy fix. But its okay, now that I know I'll be able to do something about it! I have friends saying they'll help me already so I'm not worried about getting it done. Just gotta buy the part!
blueprotegelx
iZoom
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- 2003 Mazda Protege LX-T
subbing...I had random misfire code last couple days before parking my car for the semester. i'm going to try just replacing the coils and plugs and seeing what that does. i will not find out if it worked or not until i start driving over the summer
Hi All,
I have a Mazda 2001 Protege ES 2.0L AUTO (no mods except for K&N air filter) and I started having hesitation and rough idles about a month ago. First time it happened was on highway at about 60kph, I had misfires and some hesitation (P0300 was read). Then started the rough idles at stop light (I had already changed my EGR valve back in 2005).
The CEL eventually went away only to come back a few days later (again, highway speed 70kph). Anyway, you all know how the story goes...
So I bring it to Mazda yesterday and tell them about the P0300s but they still insitented that they needed the connect it to their WDS... I'm like "Fine but it better find the real problem... esp. at 70$".
They call me up telling me I had a P0401 and that I needed to replace the EGR valve (again), but they said it's a new version that should fix the rough idle issue once and for all... I agreed but kept my old valve... (250$ /w laybor). I talked to the mechanic to see if he checked for header gasket leaks and such, he said he did...
Now, this morning at a stop light I get a really bad rough idle (even putting it in neutral and give it some gas didn't fix it...). Unfortunately, the CEL didn't come on.
I'll keep you posted on what I change/do to see if I can fix my problem.
Cheers,
Volt
I have a Mazda 2001 Protege ES 2.0L AUTO (no mods except for K&N air filter) and I started having hesitation and rough idles about a month ago. First time it happened was on highway at about 60kph, I had misfires and some hesitation (P0300 was read). Then started the rough idles at stop light (I had already changed my EGR valve back in 2005).
The CEL eventually went away only to come back a few days later (again, highway speed 70kph). Anyway, you all know how the story goes...
So I bring it to Mazda yesterday and tell them about the P0300s but they still insitented that they needed the connect it to their WDS... I'm like "Fine but it better find the real problem... esp. at 70$".
They call me up telling me I had a P0401 and that I needed to replace the EGR valve (again), but they said it's a new version that should fix the rough idle issue once and for all... I agreed but kept my old valve... (250$ /w laybor). I talked to the mechanic to see if he checked for header gasket leaks and such, he said he did...
Now, this morning at a stop light I get a really bad rough idle (even putting it in neutral and give it some gas didn't fix it...). Unfortunately, the CEL didn't come on.
I'll keep you posted on what I change/do to see if I can fix my problem.
Cheers,
Volt
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You should be taking that back to the dealer and telling them to fix it at no cost. If you took it in and told them that you wanted the rough idle fixed, and they said that they did fix it, then they are obligated by law to perform the work on the car that will correct the issue. The law may vary slightly from state to state, but they basically owe you a fix for your car, either at no charge or a severely reduced one.
I don't know if a DTC code is stored even though the CEL was not lit... I'll hook up my OBD2/ScanXL reader tonight and check if something got recorded. Going to the dealer with a code would be a lot more convincing...
I've been reading a bit about this Seafoam stuff, I might be tempted to give that a try... I wonder if it still works bellow 0'F (Montreal Winter).
Cheers,
Volt
It is getting a bit better...so far it's been almost a day and I can tell its a bit different. I'm going to run some through the oil tomorrow because I'll be able to change it Sat morning. The CEL was on but it turned off on its own so we'll see if it gets better or worse. I'm looking on the bright side!
Okay, so I haven't been driving the last few days cuz I got sick, fever and all, but I plan on taking her out soon. I just painted the passenger mirror with some flat black and clear coat (looks so much better) so I'm gonna wait till that's done drying till I take her out again for a harder test. CEL wasn't on last time I checked, but we'll see tomorrow. I hope I remember to update...
I changed my plugs and it didn't help. Inspect yours and check the gap before you replace them.
Do you have the factory timing belt and idler?
Hmm, good question. I might, but they don't look too bad.
At least the belt doesn't, I don't know where to look for the idler...
But that wouldn't explain the P303 would it?
ps. Plug wires, not the plugs themselves.
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Hmm, good question. I might, but they don't look too bad.
At least the belt doesn't, I don't know where to look for the idler...
But that wouldn't explain the P303 would it?
ps. Plug wires, not the plugs themselves.
Maybe not, but I have read that the idler can cause hesitiation after half a tank on some Fords. I am schedule to have my timing belt, idler, tensioner, water pump, etc replaced next week. I am going to sump the fuel down to a quarter of a tank to see if I it is fixed. If not, I found a fuel pump assembly at a junk yard to use to swap the assembly part of the pump as it has the high pressure filter in it.
Last time I let the gas get below half a tank and the hesitation started, I pulled over and opened the gas cap to see if it would hiss. It didn't happen, if it did it would have been due to air sucking in due to back pressure in the tank. This would have been caused by a clog in the vent tube. Wish it would have as that would've been an easy fix.
A friend has a thread on alldata about this issue. So far all of the posters advise the same things that I have already checked, replaced, or cleaned.
