Mazda 2.3L CEL Codes

The following is a list of codes that I have come across in my time spent searching the Internet. If you have one that should be added post or PM it and I'll update the list. This list is for the 2.3L Mazda motor, I'm not sure if all of them apply to the MS6 2.3L or not but I've had one myself, P2006, and it is on the list so I thought I'd share it with the rest of the members.

P0011 CMP timing over-advanced ON 2 CCM
P0012 CMP timing over-retarded ON 2 CCM
P0031 Front HO2S heater circuit low input ON 2 O2 sensor heater
P0032 Front HO2S heater circuit high input ON 2 O2 sensor heater
P0037 Rear HO2S heater circuit low input ON 2 O2 sensor heater
P0038 Rear HO2S heater circuit high input ON 2 O2 sensor heater
P0101 MAF sensor inconsistent with TP sensor or engine speed ON 2 CCM
P0102 MAF circuit low input ON 1 CCM
P0103 MAF circuit high input ON 1 CCM
P0106 MAP sensor performance problem ON 2 CCM
P0107 MAP sensor circuit low input ON 1 CCM
P0108 MAP sensor circuit high input ON 1 CCM
P0111 IAT circuit performance problem ON 2 CCM
P0112 IAT circuit low input ON 1 CCM
P0113 IAT circuit high input ON 1 CCM
P0117 ECT circuit low input ON 1 CCM
P0118 ECT circuit high input ON 1 CCM
P0122 TP sensor No.1 circuit low input ON 1 CCM
P0123 TP sensor No.1 circuit high input ON 1 CCM
P0125 Excessive time to enter closed loop fuel control ON 2 CCM
P0126 Coolant thermostat stuck open ON 2 Thermostat
P0128 Coolant thermostat stuck open ON 2 Thermostat
P0131 Front HO2S (stuck low) ON 2 CCM
P0132 Front HO2S (stuck high) ON 2 CCM
P0133 Front HO2S circuit malfunction ON 2 O2 sensor
P0134 Front HO2S circuit no activity detected ON 2 CCM
P0137 Rear HO2S circuit low input ON 2 CCM
P0138 Rear HO2S circuit high input ON 2 CCM
P0140 Rear HO2S circuit no activity detected ON 2 CCM
P0171 Fuel trim system too lean ON 2 Fuel
P0172 Fuel trim system too rich ON 2 Fuel
P0222 TP sensor No.2 circuit low input ON 1 CCM
P0223 TP sensor No.2 circuit high input ON 1 CCM
P0300 Random misfire detected Flash / ON 1 or 2 Misfire
P0301 Cylinder No.1 misfire detected Flash / ON 1 or 2 Misfire
P0302 Cylinder No.2 misfire detected Flash / ON 1 or 2 Misfire
P0303 Cylinder No.3 misfire detected Flash / ON 1 or 2 Misfire
P0304 Cylinder No.4 misfire detected Flash / ON 1 or 2 Misfire
P0327 Knock sensor circuit low input ON 1 CCM
P0328 Knock sensor circuit high input ON 1 CCM
P0335 CKP sensor circuit malfunction ON 1 CCM
P0340 CMP sensor circuit malfunction ON 1 CCM
P0401 EGR flow insufficient detected ON 2 EGR
P0402 EGR flow excessive detected ON 2 EGR
P0403 EGR valve (stepper motor) circuit malfunction ON 2 CCM
P0420 Catalyst system efficiency below threshold ON 2 Catalyst
P0441 Evaporative emission control system incorrect purge flow ON 2 Evaporative
P0442 Evaporative emission control system leak detected (small leak) ON 2 Evaporative
P0443 Evaporative emission system purge control valve circuit malfunction ON 2 CCM
P0446 Change over valve (COV) (EVAP system leak pump) stuck close ON 2 Evaporative
P0455 Evaporative emission system leak detected (gross leak) ON 2 Evaporative
P0456 Evaporative emission system leak detected (very small leak) ON 2 Evaporative
P0461 Fuel gauge sender unit circuit range/performance ON 2 CCM
P0462 Fuel gauge sender unit circuit low input ON 2 CCM
P0463 Fuel gauge sender unit circuit high input ON 2 CCM
P0480 Fan relay No.1 control circuit malfunction OFF 2 Other
P0481 Fan relay No.2 and No.3 control circuit malfunction OFF 2 Other
P0482 Fan relay No.4 control circuit malfunction OFF 2 Other
P0500 Vehicle speed sensor (VSS) circuit malfunction ON 2 CCM
P0505 Idle control system malfunction OFF
P0506 Idle control system RPM lower than expected ON 2 CCM
P0507 Idle control system RPM higher than expected ON 2 CCM
P0550 PSP switch circuit malfunction ON 2 CCM
P0564 Cruise control switch circuit malfunction OFF 1 Other
P0571 Brake switch circuit malfunction OFF 1 Other
P0601 Internal control module memory check sum error ON 1 CCM
P0602 PCM programming error ON 1 CCM
P0604 PCM RAM error ON 1 CCM
P0606 ECM/PCM processor ON 1 CCM
P0607 Control module performance ON 1 CCM
P0610 Control module vehicle options error ON 1 CCM
P0638 Throttle actuator control range/performance ON 1 CCM
P0661 Variable intake-air system control solenoid valve circuit low input OFF 2 Other
P0662 Variable intake-air system control solenoid valve circuit high input OFF 2 Other
P0703 Brake switch No.1 circuit malfunction ON 2 CCM
P0704 Clutch switch circuit malfunction ON 2 CCM
P0850 Neutral switch circuit malfunction ON 2 CCM
P1410 VAD control system circuit malfunction OFF 2 Other
P1562 PCM +BB voltage low ON 1 CCM
P2004 Variable tumble control system (VTCS) shutter valve stuck open ON 2 CCM
P2006 Variable tumble control system (VTCS) shutter valve stuck closed ON 2 CCM
P2009 Variable tumble control solenoid valve circuit low input ON 2 CCM
P2010 Variable tumble control solenoid valve circuit high input ON 2 CCM
P2088 CMP actuator circuit low ON 2 CCM
P2089 CMP actuator circuit high ON 2 CCM
P2097 Post Catalyst Fuel Trim System Too Rich
P2100 Throttle actuator circuit open ON 1 CCM
P2101 Throttle actuator circuit range/performance ON 1 CCM
P2102 Throttle actuator circuit low input ON 1 CCM
P2103 Throttle actuator control motor circuit high input ON 1 CCM
P2107 Throttle actuator control module processor ON 1 CCM
P2108 Throttle actuator control module performance ON 1 or 2 CCM
P2119 Throttle actuator control throttle body range/performance ON 2 CCM
P2122 Accelerator pedal position (APP) sensor No.1 circuit low input ON 1 CCM
P2123 Accelerator pedal position (APP) sensor No.1 circuit high input ON 1 CCM
P2127 Accelerator pedal position (APP) sensor No.2 circuit low input ON 1 CCM
P2128 Accelerator pedal position (APP) sensor No.2 circuit high input ON 1 CCM
P2135 Throttle position sensor No.1/No.2 voltage correlation ON 1 CCM
P2138 Accelerator pedal position (APP) sensor No.1/No.2 voltage correlation ON 1 CCM
P2177 System too lean at idle, bank 1
P2187 System too lean at idle, bank 2
P2228 BARO sensor circuit low input ON 1 CCM
P2229 BARO sensor circuit high input ON 1 CCM
P2401 Evaporative emission system leak detection pump control circuit low ON 2 Other
P2402 Evaporative emission system leak detection pump control circuit high ON 2 Other
P2404 Evaporative emission system leak detection pump sense circuit malfunction ON 2 Other
P2405 Evaporative emission system leak detection pump sense circuit low input ON 2 Other
P2406 Evaporative emission system leak detection pump sense circuit high input ON 2 Other
P2407 Evaporative emission system leak detection pump sense circuit intermittent ON - Other
P2502 Generator terminal B circuit open OFF 1 Other
P2503 Generator output voltage signal no electricity OFF 1 Other
P2504 Battery overcharge OFF 1 Other

My 2008 Mazda 3 is back at the dealer again after suffering bent valves. They replaced the engine and know I have the same problem, bent valves. What cuold be causing this problem to re-occur?

Had my 07 MS6 in the dealership for a P2188 CEL....System too rich at idle....both Mazda and CP-E recommeded to change my BOV to recirculate instead of VTA....the MAF does not know where the air goes when it blows out and makes the car run rich to compensate....since I swiched over to recirc I have had no CEL's..and runs just as strong....

subscribed

Ok, so I am new to this MS6 forum (and female, but don't hold that against me). I bought an 06 MS6 a week ago and on day 3 of driving, the CEL popped on. I have researched more than I ever wanted to on this subject and am just looking for empathy from someone...anyone??
The car only has 32K miles, so it still carries some mfg warranty but I don't want to get punked out by the dealership when they see the CP-E CAI and HKS BOV. The filter has been changed (the one on it was filthy and really beyond cleaning) and everything else appeared clean as a whistle. Any suggestions on what I should do next?

Oh and by the way, the code is P2187...lean at idle, bank 1 (but I bet you all knew that already)

antilleybomb said:

Ok, so I am new to this MS6 forum (and female, but don't hold that against me). I bought an 06 MS6 a week ago and on day 3 of driving, the CEL popped on. I have researched more than I ever wanted to on this subject and am just looking for empathy from someone...anyone??
The car only has 32K miles, so it still carries some mfg warranty but I don't want to get punked out by the dealership when they see the CP-E CAI and HKS BOV. The filter has been changed (the one on it was filthy and really beyond cleaning) and everything else appeared clean as a whistle. Any suggestions on what I should do next?

Oh and by the way, the code is P2187...lean at idle, bank 1 (but I bet you all knew that already)

Click to expand...

Have you checked the intake and BOV for air leaks?

Yes, I did ample research on the forums and checked everything we could think to check. Is it possible that the fruitcake that had the car before put the aftermarket parts on and then never had it tuned? Would it even need to be re-tuned after adding a simple CAI?

I am a traditional V8 girl, but have grown very fond of the foreign tuners so all of this is new to me right now.

MShreve said:

Have you checked the intake and BOV for air leaks?

Click to expand...

I just picked up my car about 2 weeks ago (22 April) and today I go to get off base and get some dinner and check engine light pops on. So I detour to auto zone and get the codes pulled and get P0301. Anybody have any idea how serious this is cause I go home on leave on wednesday. Car is getting taken to the dealership tomorrow. Its completely stock. (I order mods no kidding 5 min before I started it up)

Turned the car into the dealership today. for the P0301 code. Turns out the #1 plug and coil shorted out due to their detail shop using degreaser and a power washer on the engine bay. So just throwing it out there, stay away from doing the same thing. All the other cylinders should be good since they arent as exposed.

Anyone knows what a CEL 69 is?

what about 0139 thats what my code is..its low cat readings or something

P0441 just came up : Evaporative emission control system incorrect purge flow ON 2 Evaporative. anyone kno what that means?

need help i have a evap leak was scan and cleared but back on again was told is not seriousi is there a way to reset it. P.S is a 2003 mazda 6.

I posted here earlier with sad story of the P2404 CEL on a 2006 Mazda 6 2.3L. I bought a scanner (about $40) and would use that to reset the code from time to time to see when the code came on. Seemed to come on only if I opened the gas cap immediately after turning the engine off. HOWEVER, finally took it to the dealer. They think the signal is coming from the computer and they will replace it free. Hmmmm.

P2404 followup

The dealer replaced the computer and the P2404 code came on anyway. It really was the evap pump. They changed that for $150 but didn't charge me labor because they had told me it would be free. Much less than I had expected so I'm ok. Assuming it doesn't come back again.

CEL code

I took my Mazda 6 in after not being able to start it the other day and they gave me the code P2108 TAC Module performance. Does anyone know exactly what that means. I would really appriciate it if anyone who had the same problem could help me out.

got 3 codes the other day...
Code 420: Catalyst System Efficiency Below Threshold (Bank 1)
Code 442: Evaporative Emission Control System Leak Detected (small leak)
Code 741: Torque Converter Clutch Circuit Performance or Stuck Off

Not gunna lie, I'm kinda freeking out :|

Hi
trying to find out what these codes are
p0103 and p0201
changed injectors and rail and maf sensor ,
still comes up after about 10 miles .
any ideas please before i spend
which i havent got as a non pro carer looking after mum
thanks
mark