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  #1  
Old 09-17-2009, 04:35 PM
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Default CEL P1487 and P2227

I have a 2003 Mazda 6 with 176k miles on it.

Over the past few weeks, we have been getting on and off P1487 CEL codes. These will clear on their own but later return.

Today, the CEL came on again, and now we have P1487 and P2227 codes.

Any thoughts?

We don't have any real drivability issues. The only thing we have noticed is a oil smell when we first start the car, and sometimes a puff of dark smoke. Don't know of that is related, or if that is just 176k seals.

I'd appreciate any thougths and guidance you could give on this.

Thanks,
Kevin
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  #2  
Old 09-17-2009, 04:51 PM
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Is this a 4cyl or V6?

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Old 09-17-2009, 10:05 PM
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It is a V6
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Old 09-18-2009, 10:19 AM
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Ok, this is what I found.

P1487 - EGR boost sensor Solenoid valve circuit malfunction ON 2 CCM

P2227 - EGR boost sensor circuit performance problem ON 2 CCM

I would say more than likely a bad boost sensor. It is located on the firewall. It will say KL47 on it.
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Old 09-18-2009, 12:56 PM
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The puff of smoke (if bluish) at start-up would indicate worn valve stem seals (not unlikely at that mileage.) Not a real problem, but it does add to oil consumption. It would most likely be an unrelated issue to your codes.
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  #6  
Old 09-22-2009, 01:53 PM
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I checked the sensor today. It was getting constant feed at 5 volts. Without suction, it was at 1.07V and that increased to 3.7V when suction was applied.

So I moved to the solenoid. I have good suction from the intake, so I disconnected the vacuum line to the sensor, and applied battery voltage to the two terminals on the solenoid. At first, I didn't hear the solenoid click and got no suction on the vacuum hose. After rechecking all my electical connections, and trying a few more times the solenoid opened and I got suction. I did this several times, and the solenoid acted normal and there was suction on the vacuum hose when open.

Could there just have been something blocking the solenoid? Should I replace the solenoid?

I have reset the CEL, and will see what happens.

Thanks for all your help so far with this.
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  #7  
Old 08-31-2011, 07:39 PM
che che is offline
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Default p1487

where is the solenoid located
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  #8  
Old 09-12-2013, 07:54 AM
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find egr follow the vac hose to the sensor on the mazda 6 it is on the firwall at the top easy to get at and see, middle of the car
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Old 06-06-2014, 05:55 PM
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It's an old post but I'm getting the same 2 code after replacing the EGR valve, vacuum lines, and cleaning electrical contacts. I also ran some wire into the sensor ports and the one with a Mitsubishi logo and K47 marking did indeed seem a bit plugged up. I was likewise seeing 5V and ~2.5V on other pin with key on and engine off.

Do these fail? Did your clear or did you end up replacing it?
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Old 06-06-2014, 05:55 PM
 
 
 
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03, 2003, boost, check, code, egr, engine, hoses, kl47, light, mazda, mazda6, p1487, p2227, solenoid, v6, vacuum


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