Code P2187, P2177 - Mazda3 Forums : The #1 Mazda 3 Forum
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post #1 of 14 (permalink) Old 05-21-2009, 11:02 PM Thread Starter
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Code P2187, P2177

Tonight, after leaving the gas station, my MS3 started to "chug" at rpms lower than 2500. After about 2 miles (just to get it home), the check engine light finally came on. I scanned the codes, got P2187 code and P2177 pending. I checked the gas cap and was on tight. Anybody have any ideas?

I have the MS CAI on, but that is the only mod. This has been on for almost 2 yrs.

I will be taking (or towing probably) to the dealer tomorrow morning, just thought I would check here if anybody else has noticed this problem. Any input would be appreciated.

2007 MazdaSpeed3 GT Cosmic Blue Mica
Corksport inserts, TWM bushings, 35% tint, VG sharkfin, M1, Redline MT-90
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post #2 of 14 (permalink) Old 05-22-2009, 12:44 AM Thread Starter
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Re: Code P2187, P2177

The latest, but not so greatest....

Reset the ECU and replaced the CAI with the stock airbox. Now, the car will not start. It will fire, but not run more than 2 seconds.


ANY suggestions????????????????

2007 MazdaSpeed3 GT Cosmic Blue Mica
Corksport inserts, TWM bushings, 35% tint, VG sharkfin, M1, Redline MT-90
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post #3 of 14 (permalink) Old 05-22-2009, 04:08 AM
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Re: Code P2187, P2177

Are you sure you reconnected the MAF sensor properly to the stock airbox? Because that's exactly what'll happen when you try to start it without the MAF sensor in most cases.
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post #4 of 14 (permalink) Old 05-22-2009, 09:56 AM Thread Starter
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Re: Code P2187, P2177

I am fairly sure it is correct. The way I see, it only can go on 2 different ways. I have the wires from the MAF running away from the front bumper.

2007 MazdaSpeed3 GT Cosmic Blue Mica
Corksport inserts, TWM bushings, 35% tint, VG sharkfin, M1, Redline MT-90
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post #5 of 14 (permalink) Old 05-23-2009, 11:33 AM
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Re: Code P2187, P2177

I know when I got P2187 and when I put gas in it, it would run like crap for like 3 or 4 mins. It ended up being the purge control module was stuck open. They replaced it for free.
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post #6 of 14 (permalink) Old 05-25-2009, 09:36 AM Thread Starter
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Re: Code P2187, P2177

Turns out the high pressure fuel pump went bad. Getting it replaced at the moment.


2007 MazdaSpeed3 GT Cosmic Blue Mica
Corksport inserts, TWM bushings, 35% tint, VG sharkfin, M1, Redline MT-90
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post #7 of 14 (permalink) Old 05-28-2009, 07:43 PM Thread Starter
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Re: Code P2187, P2177

Fuel pump was not the issue...turns out, the 93 octane pump actually had E-85 in the tank. Used the same pump many times before without issues. E-85 bad!!!
Trying to get the gas station to pay the repair bill; I bet this is going to be fun.

2007 MazdaSpeed3 GT Cosmic Blue Mica
Corksport inserts, TWM bushings, 35% tint, VG sharkfin, M1, Redline MT-90
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post #8 of 14 (permalink) Old 06-08-2009, 04:39 PM
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Re: Code P2187, P2177

I'm sorry i have to throw a BIG STINK on this thread, i had the same exact problem with my car, they had my car for 6 days figured it was bad gas, though it's different in your case mvl.MS3, it indeed was the first O2 sensor once that O2 sensor was replaced , they reflashed the PCM along with a brand new Fuel pump life has been good to be ever since. Make sure they checked that O2 sensor.... Good luck to you.

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post #9 of 14 (permalink) Old 06-09-2009, 11:27 AM Thread Starter
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Re: Code P2187, P2177

Thanks for the info blackbird. so far, everything has been fine, but if something comes up, I will be sure to have the O2 sensor checked.

2007 MazdaSpeed3 GT Cosmic Blue Mica
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post #10 of 14 (permalink) Old 06-09-2009, 12:09 PM
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Re: Code P2187, P2177

[quote author=mvl.MS3 link=topic=145729.msg3169233#msg3169233 date=1244561270]
Thanks for the info blackbird. so far, everything has been fine, but if something comes up, I will be sure to have the O2 sensor checked.
[/quote]

Did the gas station pay? I remember sometime last year a station in NJ on the turnpike had some really bad gas and cars were breaking down all over the place after leaving. The news made a huge deal out of it.
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