20 Most Recent 2003 Mazda Mazda6 Questions & Answers

i had the same code, p2187. check to the left of the throttle body(side facing the front of the veh.
there are 2 vaccum hoses going into the intake. the larger one on top has a spring clip holding it and if you look under that you'll see a smaller one with a check valve. mine was disconnected. plugs in under the larger one.

2003 Mazda... | Answered on Jul 11, 2019

Have it scanned for fault codes as an indicator of the problem. If the throttle valve is gummed up, cold temps can cause it to stick. But diagnose first!

2003 Mazda... | Answered on Feb 17, 2018

try washing the rear bumper!

2003 Mazda... | Answered on Jan 08, 2018

The ECM seldom goes on any vehicle.There is two things I would check.One is fuel reaching the injectors?.Check this first.Two are you getting a spark?

2003 Mazda... | Answered on Dec 19, 2017

did your old Radio had Steering wheel remote control? If yes, you should check that connection.

2003 Mazda... | Answered on Nov 03, 2017

your alternator is not charging,that is why your gear is stuck because its short in current,replace your alternator.

2003 Mazda... | Answered on Jun 24, 2017

Hi it would not be the mass flow sensor, it would be more like the cam and/or crank sensor, cam sensor gets a lot of heat on it from the engine this can warp the sensor over time and when it cools down its not in line properly. crank is in the oil all the time and gets hot over time it can overheat. if both of the sensors fail as the read engine speed the engine will cut out. then when you restart the engine light will be on but it will be in limp mode. that means that one of the sensors is reading, then when this fails again the engine will cut out.

2003 Mazda... | Answered on May 31, 2017

You have already spent to much money on a good part. Have the codes read. Or have the car diagnosed. You can get cheap, up to date code readers for $50 to $80 at parts stores.

2003 Mazda... | Answered on Nov 05, 2016

Anon, The fuel pump will probably be in the fuel tank, if it is gas. No use guessing what is faulty, could be a lot of things. Take it into a good shop and have it scanned, diagnosed and estimate on repair.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

2003 Mazda... | Answered on Aug 05, 2016

if's it's not leaking water. then your thermostat may be stuck in the closed position and will need replacing. if thermostat is easy to remove you can try removing it and see if it still over heats. also check the water pump, there is a small hole in the housing and if it's leaking water out of the hole then the water pump is bad.

2003 Mazda... | Answered on Apr 24, 2016

M.a.P. sensor, air leak in intake system, low or erratic fuel delivery

2003 Mazda... | Answered on Mar 14, 2016

Security is built into the key. There is not a way to disarm and allow vehicle to start other than having dealer or other authorized person to program a new key to the car

2003 Mazda... | Answered on Sep 23, 2015

Not finding what you are looking for?
2003 Mazda Mazda6 Logo

704 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

2004 Mazda 6
2004 Mazda 6

738 Questions

2005 Mazda 6
2005 Mazda 6

383 Questions

2006 Mazda 6
2006 Mazda 6

290 Questions

2007 Mazda MAZDA6
2007 Mazda MAZDA6

74 Questions

2008 Mazda MAZDA6
2008 Mazda MAZDA6

48 Questions

Top Mazda Experts


Level 3 Expert

85239 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8984 Answers

Are you a Mazda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

MAZDA6 Mazda

  • MAZDA6 Mazda

Most Popular Question

car keeps over heating

  • Cars & Trucks