Diagnostic code P2178

Audio, Electronics and Lighting questions and answers

Moderators: timk, Stu, zombie, Andrew, -alex, miata

User avatar
davekmoore
Speed Racer
Posts: 4681
Joined: Thu Apr 30, 2009 1:53 am
Vehicle: NC
Location: Esprick, UK

Diagnostic code P2178

Postby davekmoore » Thu Jun 17, 2010 7:03 pm

Can anyone tell me what this code is?

"P2178 [ 0, 0,21,78]

Thanks in advance for any help.
UK since return: Standard NC2 (horrid), C200K, ND2 BBR, NC2 BBR200 (loved it), NC BBR300 (better than BARMY), V-Special, turbo NB8B (my 84th car)

User avatar
de Bounce
Racing Driver
Posts: 1091
Joined: Thu Feb 12, 2009 5:19 pm
Vehicle: NC
Location: Northern Burbs - Melbourne

Re: Diagnostic code P2178

Postby de Bounce » Thu Jun 17, 2010 8:54 pm

Hi Davekmore

P2178 - Fuel system too rich at off idle

Means stuff all to me, however here is a link to the Mazspeed service manuals
Have a look HERE for an active link.
I believe it is about 100Mb as a Zip or Rar File

The chapter you need to look in is the 2004 ENGINE PERFORMANCE On-Board Diagnostic which lists the code on page 35
2011 NC2 PRHT SE in Dolphin Grey
2001 NB8B in Crystal Blue - Sold :(
Motorkhana Video

User avatar
davekmoore
Speed Racer
Posts: 4681
Joined: Thu Apr 30, 2009 1:53 am
Vehicle: NC
Location: Esprick, UK

Re: Diagnostic code P2178

Postby davekmoore » Thu Jun 17, 2010 9:39 pm

Thanks de Bounce
UK since return: Standard NC2 (horrid), C200K, ND2 BBR, NC2 BBR200 (loved it), NC BBR300 (better than BARMY), V-Special, turbo NB8B (my 84th car)


Return to “MX5 Audio, Electronics & Lighting”

Who is online

Users browsing this forum: No registered users and 220 guests