My 1994 Mazda Miata has always started with no problems until this morning. It started for a brief second and promptliy dies. Not a sputtering die but an instant die situation.
Battery and lights work fine
There is spark from the coil
Gas tank is full
Any ideas?
2007-08-19 12:52:55 · 9 answers · asked by duffasbutt 1 in Cars & Transportation ➔ Car Makes ➔ Mazda
Sounds like your Miata is not getting enough fuel to keep running. You might want to try replacing the fuel filter on your 94 and see if this corrects the problem. If that doesn't work you gonna need to see if the fuel pump itself is failing.
2007-08-19 15:28:56 · answer #1 · answered by avgordguy 5 · 1⤊ 0⤋
My Miata (90) has been suffering the same thing. But if I start it in the full throttle position it will keep running. After a few minutes it will run like it is supposed to. I think that the hot weather has caused a similar condition as "vapor lock".
Other wise it is most likely the air flow sensor that has failed. This causes the fuel pump to shut down. Also because my Miata's may sit for months at a time, I have had to tweak the throttle position reed switched so that they will make contact.
There is also the limited possibility that some thing has blocked the port in the AFS and it is reading no airflow. Cleaning a AFS with the wrong thing can cause damage to the unit. I use WD40 and it has not removed any coatings that I know of (yet).
2007-08-20 11:59:03 · answer #2 · answered by teamepler@verizon.net 5 · 0⤊ 0⤋
Check your plug wires first. They go down through the valve cover and are a hard plastic. The Miata had problems with the spark arching through and grounding. This usually starts with rough running. however.
Second. The fuel pump gets two signals. The first is from the starter. Once the car starts, the fuel pump gets its signal from the air flow sensor. I think it goes through a relay. If it always starts then dies, this could be the problem. If it only starts once in a while, this is not it.
The person who responded that opening the throttle worked for him probably has a bad check valve in his fuel pump. The pump is supposed to hold pressure in the system. If the check valve is bad, the pressure bleeds off and there is no fuel pressure for a cold start. Then he must restart several times until the pressure builds up again. Usually this only happens on the first start of the day.
2007-08-20 12:41:46 · answer #3 · answered by the mazda mechanic 4 · 0⤊ 0⤋
when the fuel pump is bad it sputters until your engine absorb all fuel left on the lines then die so its not the fuel pump like the others guys says..... i dont know why those people above answer they dont (most) know nothing about mechanic so i guess they fell happy guessing or something like that
my friend you have one of two problems, the most comom problem is something related to electrical system
check your ignition system, cap, cables, spark plugs, cap rotor and the ignition itself
also an engine without ground can lead you to a sudden shut off
and the second one.... maybe your timming belt is out... some cars sometimes ran on a few timming belt teeths until they finally broken and engine spinns freely and die
and last im 95% sure is not the fuel pump but you can inspect it any way, unplug the line camming from your filter and start the car is a heavy spray came from it your pump is ok
2007-08-20 07:10:51 · answer #4 · answered by Anonymous · 0⤊ 0⤋
the tank may be full but if it cant get to the engine then it wont run for long. it could be as simple as buying a cheap little bottle of fuel system cleaner if and hard as changing the fuel pump filter and injrctors. i recommend start with the cheaper of the 2 first and then move on from there good luck
2007-08-20 02:24:20 · answer #5 · answered by tuner213 2 · 0⤊ 0⤋
Have the fuel pump checked. Probably doesnt have enough pressure to keep the vehicle running.
2007-08-19 15:59:23 · answer #6 · answered by MazdaMatt 5 · 0⤊ 0⤋
He Duffas:
Ditch the little four and go with a V6 you will love the power you get. My 94 has a 3.0 ford with a automatic. All i had to do was to change the motor mounts and transmission. After all Ford builds Mazda so it is a natural.
2007-08-19 15:18:08 · answer #7 · answered by reddcobalt07 3 · 0⤊ 2⤋
it could be the fuel injectors or it can be you alternator if you can take/pull it in to a Mazda dealer ship and have them check it out (don't go to a mechanic because it will take a very long time and they charge more)good luck
2007-08-19 13:01:46 · answer #8 · answered by Anonymous · 0⤊ 0⤋
maybe there's a problem with the engine.
2007-08-19 12:59:25 · answer #9 · answered by vixen 4 · 1⤊ 0⤋