Question about 2007 Mazda B4000

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98 mazda b4000 won't stay running

I have a mazda b4000 that runs for a few seconds then dies i replaced the maf sensor cleaned the throttle body checked the vaccum lines and replaced the fuel filter it gets gas at start up and then dies out if i try hitting the gas it dies faster at this point i am lost and don't know where to go next?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

jmpienaar1
  • 5 Answers

SOURCE: '98 Mazda 626 Died and will not start again..HELP

b_bro

Check the Fuel injection system (injectors) and the intake manifold. It might also be wise to check the alternator as well as the starter coil and also the electronic distributor

Posted on Oct 18, 2008

  • 1 Answer

SOURCE: Mazda B4000 Fuel Filter replacement

remove the bracket from around the filter, and remove the clip from the fuel line, and it should pop right off.

Posted on Dec 23, 2008

  • 75 Answers

SOURCE: 1990 Mazda B2200 w EFI- Starts and dies

When you turn the key to the on position can you hear the fuel pump turn on? If not, the fuel pump relay has gone bad. Make sure you have at least 5 gallons of fuel in the tank. Check and make sure you have fuel flow to the rail, try cracking the banjo bolt on the fuel rail.

Posted on Jan 24, 2010

Testimonial: "Thank you. I believe you are on the right track. I failed to mention earlier that this is a EFI model."

  • 79 Answers

SOURCE: 93 mazda mx6 wont run. will start but runs very

If yours is the v6 2.5 the tps is adjustable and you can turn it up and down. On my mazda it acted like it was in the fuel system and i ended up replacing the distributor.

Posted on Feb 06, 2010

  • 1 Answer

SOURCE: 1991 Mazda truck starts, then dies unless

Not a solution but i am going through the exact same nightmare and same symptoms with my 1991 mazda b2200. I've apwnt over two grand to have my rebuilt TWICE and my alternator replaced and still does the same thing just starts only to die 2 seconds or so later unless i let it warm up to its max but will still die when taking turns and stopping at lights.

Posted on Mar 29, 2011

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Have a 1994 mazda b4000. fuel pump working. replaced fuel filter. it will start then dies. if you put your foot on throttle it will die


There is a special spray cleaner for the Mass air flow and throttle position sensors. Don't use just any spray cleaner or you will destroy the sensors. If, after the cleaning, the problem persists, have them both tested. Run a diagnostic test with a code reader to dind out what codes the computer gives so you can get the correct replacement parts.

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I don't have a video. But to start all you need is a screwdriver, a toothbrush and a can of brake clean. Remove the air filter plenum from the throttle body. For 3.1 and 3.4 engines, the MAF sensor is in the plenum, Just spray both sides of it. The open the throttle and clean inside of it as best you can , clean the back of the throttle plate and especially around where it sets in the throttle. Start the car, it will take a second or two. Rev it up and keep it going and spray some brake clean in it, do this a few times. If your air filter is dirty, replace it also. This should help a lot, if it still runs a little rough, then you probably need to change plugs and wires. If you have the 3.8 engine, start it and rev it, spray the brake clean down the throttle, the MAF sensor is right there. To clean it , you would have to remove it from the intake.

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1 Answer

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Clean your MAF sensor and throttle body. If it's dirty it will send wrong voltage to ECU, running either too lean or too rich, most likely too rich and flooded the fuel injectors.

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1 Answer

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Here's what you do. Remove the air plenum/duct from the throttle body. Pull the mass air flow(MAF) sensor from that. Use brake clean and spray the MAF from both sides(do not use a brush or fingers to clean it, sensitive). Use the brake clean and a toothbrush to clean the throttle body, clean especially around where the throttle plate rests and the back of the plate, plus as far as you can in the throttle body. Start the engine (it will take a second or two to start because of the brake clean), then rev it up and spray brake clean in the throttle. Throttle it, as it will want to die. Do this for a few seconds or so. Turn it off and reassemble the plenum. Check engine light will go off as soon as you reconnect the MAF. If you still have a slight stumble, Then remove the hard plastic tube from the plenum by the throttle body. Start the engie, after it is warmed up, pour water down that hole while revving up the engine, as it will want to die. This will clean all the carbon build up off the pistons and valves. Again do this for a few seconds. If you still have the stumble, then you have bad valve seats.Where the vavle sits on the head. To fix this is $800+

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1 Answer

Changed plugs and wirers still almost dies at idel otherwise runs good


Clean the Mass air flow (MAF) sensor and the throttle body. I use brake clean and a tooth brush for the throttle. Clean around the throttle plate and the back of it as best as possible. Start the engine (it will take a second or two) Then rev it up and spray some into the throttle. Just spray the MAF, both sides, don't use the brush on it, you could break a $100 part.

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2 Answers

I bought a brand new Mazda Etude 180ise (2000 model). For the last 6 years I have continually struggled with idling problems. It cuts out, threatens to die on you, recovers, runs well for a fortnight and...


You can clean these with brake cleaner or something comparable. Brake cleaner doesn't leave a residue. If it is mounted directly to the throttle body, then clean all of it. Start the car rev it up and spray it in, Keep the rpm's high enough so not to kill the engine. You don't have to use the entire can. Fords are the same way, the start to run bad because the MAF gets contaminated with oil and dust, spray them off and all is good till next time. Just a note.... Never use a brush or anything on the MAF, as you said they are very sensitive

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1 Answer

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P0172 02 sensor is detecting that the system is running too rich. An 02 sensor that is starting to go out will pull this code, but the following will cause the 02 sensor to throw this code as well:

A few things to look at. 1st thing I'd do is clean your throttle body with the battery disconnected. Use sensor safe throttle body cleaner, about $4.

From there, I'd look at your upstream 02 sensor, located on the exhaust manifold on passenger side of engine, very easy. Try and stay away from Bosch if possible.

New fuel filter, clean or replace your MAF sensor located on top of engine next to firewall. Also, probably time to change your spark plugs. I recommend A/C Delco 41-103, will idle better than other brands.

Jun 20, 2011 | 2003 Chevrolet TrailBlazer

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