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-   -   Codes P0131 and P0171 (https://www.miataturbo.net/ecus-tuning-54/codes-p0131-p0171-77304/)

Reverant 01-30-2014 09:07 AM

Codes P0131 and P0171
 
Hey guys,

I was going to the post office today to send out some packages, and about 2-3 minutes after starting, the engine would hesitate at part throttle and sort of misfire during idle.

A minute after, the CEL came on.

Runs fine if I give it a full throttle run.

I checked with my ScanGauge, and got a DTC P0131 and a pending P0171 after I cleared the P0131. The P0131 comes back if I switch the ignition off and start again.

I didn't have my laptop to connect to the MS3.

Halp?

18psi 01-30-2014 09:11 AM

Looks like they are related to oxygen sensor and maf.

Reverant 01-30-2014 09:21 AM

Thanks, I'll go for a ride with my laptop and see what TunerStudio has to say. Perhaps its time to change my wideband sensor.

ScottyP3821 01-30-2014 09:27 AM


Originally Posted by Reverant (Post 1097169)
Thanks, I'll go for a ride with my laptop and see what TunerStudio has to say. Perhaps its time to change my wideband sensor.

When was the last time you calibrated it?

Reverant 01-30-2014 09:40 AM

IIRC about 6 months ago with my last oil/filter change.

Zaphod 01-30-2014 09:46 AM

Get a Zeitronix and don't care about that shit anymore... ;)

ScottyP3821 01-30-2014 09:50 AM


Originally Posted by Reverant (Post 1097180)
IIRC about 6 months ago with my last oil/filter change.

Probably needs to be re calibrated and get an oil change too.

Preluding 01-30-2014 09:53 AM

OBD codes still function with megaquirt?? *mind blown*

ScottyP3821 01-30-2014 09:59 AM


Originally Posted by Preluding (Post 1097189)
OBD codes still function with megaquirt?? *mind blown*

If its running just Fuel/Spark with MS I'd imagine so. If your Fuel is off or ignition table the Stock ECU is probably gonna pick up some codes. I never ran a MS this way but thats how I picture it.

18psi 01-30-2014 10:14 AM


Originally Posted by Preluding (Post 1097189)
OBD codes still function with megaquirt?? *mind blown*

This was also very interesting to me ;)
Rev has a "special" megasquirt.

Preluding 01-30-2014 10:14 AM


Originally Posted by ScottyP3821 (Post 1097194)
If its running just Fuel/Spark with MS I'd imagine so. If your Fuel is off or ignition table the Stock ECU is probably gonna pick up some codes. I never ran a MS this way but thats how I picture it.

Piggyback = OBD codes
Standalone = No more OBD codes

Sorry for the thread jack...

18psi 01-30-2014 10:19 AM

You realize this is Rev we're talking about right?

Not some n00b. He forgot more about MS than most of us ever knew

Reverant 01-30-2014 10:21 AM

Yeah, this MS3 supports 60+ codes, CCM monitors and realtime OBD-II data. There's no stock ECU in the car.

K, tks bye.

ScottyP3821 01-30-2014 10:26 AM


Originally Posted by Reverant (Post 1097206)
Yeah, this MS3 supports 60+ codes, CCM monitors and realtime OBD-II data. There's no stock ECU in the car.

K, tks bye.

:drool:

18psi 01-30-2014 10:28 AM

Enhanced MS3 baller edition

Reverant 01-30-2014 10:35 AM

More likely Extreme MS3 or something.

Zaphod 01-30-2014 10:36 AM

Yes we all know, that we want this bloody damn thing now! In all it's glory! Did I mention NOW...

Reverant 01-30-2014 10:41 AM

shutupandtakemymoney.jpg? :)

ScottyP3821 01-30-2014 11:59 AM


Originally Posted by Reverant (Post 1097221)
shutupandtakemymoney.jpg? :)

If you ever start selling these. I would pay good money. I might finally buy an OBDII miata.

Reverant 01-30-2014 12:14 PM

If I start selling these? :)


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