Question about 1990 Mazda MX-5

1 Answer

Mazda mx5 floods on starting

Engine floods on starting whether hot or cold, removing injector electrics and turning her over, then replacing electrics usually works.

Posted by on

  • kevin carpenter May 11, 2010

    one off three problems first check the cold start injector try disconnecting it and starting the vech. 2nd you need to install a fuel pressure gauge and see what the pressure . high pressure could indacte a bad fuel pressure regulator, 3rd what is the engine coolat temp reading a faulty reading which would low voltage say like -40 below will hold the injector open longer because the ecm things that you are in cold start enrichment mode. try to too check these three items and let me know kdc744

  • Anonymous Mar 30, 2014

    Truck wont start on cold mornings because it floods itself

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Sergeant:

    An expert that hasĀ over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 404 Answers

Check fuel pressure regulator, is return line blocked?

Posted on Jan 06, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2003 kia floods..no start hot


How do you know it floods? Fuel injected vehicles should not over fuel the engine unless an injector/fuel pressure regulator is leaking internally or the computer commands a high injector pulse rate based on sensor information. Does it have spark and fuel pressure when the no start condition presents itself?

Dec 19, 2015 | 2003 Kia Sedona

2 Answers

Injector sprays too much fuel after starting. Engine floods out


Suspect (potentially) either a stuck injector, or a failed/failing fuel pressure regulator. One sign of a failed fuel pressure regulator can be gas in the oil. (I suffered that side effect, along with bogging, and black smoke rich running, worsening as warmed up, turned out to be fuel pressure regulator). If the injector is loose in the throttle body, or has bad o-rings, can also cause some wonky behavior. Good luck.

Mar 14, 2015 | 1992 Geo Tracker

1 Answer

My Mazda MX5 (2005). Won't start this morning. I moved it quickly yesterday when it was cold to straighten the wheels, and I am sure this has caused the problem because it has happened before. Can anyone...


easiest way woud be to attach a scantool to it when it is in a no start condition and look at any fault codes or the live data looking for injector and ignition enable,the hard way would involve checking for spark and fuel injector signal to se whether one or both are absent

Dec 21, 2014 | Cars & Trucks

1 Answer

Car starts when cold not when hot


If it cranks normally when hot, could be that an injector is leaking enough to slightly flood engine and this is okay when cold. Could also be cold start injector is not completely shutting off when hot.

Dec 18, 2014 | Cars & Trucks

1 Answer

Bad cam shaft senser


You could have a faulty engine coolant sensor or intake air temperature sensor. Fuel injectors clogged or dirty flooding engine.
Clean fuel injectors, replace fuel filter and air filter, and see if the problem persists.
If it does ECT sensor is bad. If CMP sensor was bad, the vehicle won\'t start whether cold or hot. CKP senso and CMP sensor work together if either one fails, the vehicle won\'t start. Have the vehicle code scanned.

Apr 18, 2013 | 1999 Chevrolet Tracker

3 Answers

What does a cold start injector do 1991 mazda 929s


The manner of construction of cold start valve is essentially quite similar, if not absolutely, as that of any other regular fuel injector. The main positive difference is the fact that the injection time of the cold start valve is gauged at intervals of a second. This is completely unlike a regular injector which has an injection time tuned to intervals of milliseconds.


------------------------------------------------------------------------
FGTech Galletto 2-Master EOBD2 V51 BDM-TriCore-OBD

Dec 24, 2012 | Mazda 929 Cars & Trucks

1 Answer

1989 mpv mazda does not start on cold mornings and days


I'm assuming the engine cranks with the starter but does not start and run.

check the operation of the cold start injector. This is a separate fuel injector that injects fuel into the intake manifold to help richen up the mixture for cold starts. It operates on a timer that is linked to a sensor that measures engine coolant temperature. Once warm or the timer runs out, the cold start injector is turned off. Other things to check:

Fuel pressure too high (floods engine through cold start injector), engine coolant temp sensor or intake air temp sensor is stuck at full hot (doesn't allow enough fuel for cold starts), fuel injectors are leaking (floods engine with fuel).

Feb 10, 2011 | 1989 Mazda MPV

1 Answer

Difficulty starting when hot.


engine flooding fuel injectors leaking while engine off.fill gas tank up and put a bottle of fuel injector cleaner in gas tank.

Nov 20, 2009 | 2006 Hyundai Tucson

2 Answers

WON'T START AFTER RUNNING FINE - STARTS FINE WHEN COLD THEN AFTER RUNNING AWHILE , IF YOU TURN IT OFF - ACTS LIKE IT'S GETTING NO GAS - HAVE NEW FUEL PUMP AND FILTER -


I have the 1999 suburban, and my mechanic says that the injectors are worn, and that when you shut off the engine, fuel pressure continues briefly and the injectors "leak" a bit, flooding the engine briefly. That's why after they still start right up after a few minutes, i.e., not enough time to flood, or they start up cold, having drained any of the fuel out of the injectors. Park for a couple hours, and you've got a mildly flooded engine. Replacing the injectors is what he suggested, but that is pricey. Not sure if this is the answer or not, but it's what I've been told. Good luck!

Jul 18, 2009 | 1999 GMC Suburban

Not finding what you are looking for?
1990 Mazda MX-5 Logo

Related Topics:

195 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6880 Answers

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

Answer questions

Manuals & User Guides

Loading...