Midnight_P5
Member
- :
- 2003 Mazda Protege5
First things first:
I'm fairly new to this forum, and so far it has been very welcoming, and I've learned a bunch about Pro5's and Mazdas in general.
I bought my 2003 Protege5 (I think it's a 2003.5, as it has the spare tire subwoofer) almost 2 weeks ago. It's in pretty decent shape for my intended purpose of using it as a secondary car. It's got 158,4xx miles on it, so it's a little long in the tooth, but it seems to run well. Or at least I assume it's running well, I've never owned a Mazda before. For all I know, it could be running like poo.
The previous owner warned me of a couple codes the ECU was throwing (evident by the CEL).
Well, I just got back from Autozone, and this thing threw 5 codes. Guy at the counter said I was the winner for today, as I had the most codes.
Here's the list:
Luckily, these have solutions that I've found on the board here:
I'm going to be placing my order in at RockAuto ASAP, so I can get this fixed this weekend.
If anyone could offer any advice or tips or any kind of help at all, it would be greatly appreciated.
How I felt at Autozone:
I'm fairly new to this forum, and so far it has been very welcoming, and I've learned a bunch about Pro5's and Mazdas in general.
I bought my 2003 Protege5 (I think it's a 2003.5, as it has the spare tire subwoofer) almost 2 weeks ago. It's in pretty decent shape for my intended purpose of using it as a secondary car. It's got 158,4xx miles on it, so it's a little long in the tooth, but it seems to run well. Or at least I assume it's running well, I've never owned a Mazda before. For all I know, it could be running like poo.
The previous owner warned me of a couple codes the ECU was throwing (evident by the CEL).
Well, I just got back from Autozone, and this thing threw 5 codes. Guy at the counter said I was the winner for today, as I had the most codes.
Here's the list:
- P0037 - "O2 sensor heater circuit low - bank 1 sensor 2"
- P0421 - "Warm up catalyst system (RH) efficiency below threshold"
- P0300 - "Random cylinder misfire detected"
- P0442 - "EVAP control system leak detected - small leak"
- P0660 - "IMCC actuator circuit malfunction"
Luckily, these have solutions that I've found on the board here:
- To my understanding, these are the 4-wire, heated O2 sensors. Since the "heater circuit" is reading poorly, I'm going to assume the O2 sensor is bad. Since this is "sensor 2", I guess that means it's the downstream sensor? Am I correct in reading into this? Or is the P0421 code causing this as well?
- This code can be thrown because of the P0300. I'll fix that first. Cat is probably bad, but I'm not spending money on it.
- I need to change the coils, wires, and plugs. RockAuto for parts, me for labor. Done deal.
- Could this be the gas cap? That's what I'm going to change first. Hopefully, that'll work. Does anyone know what else could cause this code?
- From what I've come across, this is the EGR valve. It probably needs cleaned/replaced, but a bunch of the things I've read said this code can be set off by the P0300 code if it goes untreated.
I'm going to be placing my order in at RockAuto ASAP, so I can get this fixed this weekend.
If anyone could offer any advice or tips or any kind of help at all, it would be greatly appreciated.
How I felt at Autozone: