Q: It does not stay on

asked by on

I recently changed out the spark plugs and ignition coils on my wife's nissan and after i put everything back on when i try to start it, it turned on but turned right back off and i even tried giving it gas but that did not work so i double check to see if i missed anything when i put it back together and eveything was where it's supposed to go
My car has an automatic transmission.

If the car starts, even for just a few seconds, this generally means you have spark in most or all of the cylinders. When it fails to stay running, this is typically related to a fuel supply issue such as low fuel pressure, failing or leaking fuel injectors, a faulty MAF sensor or idle air control valve. Fuel injection requires a specific amount of fuel pressure to keep the engine running and when this is too low, this can cause the engine to stall. Faulty fuel injectors can also cause this by either not providing enough fuel or providing too much fuel when leaking causing the motor to flood itself when it is not able to burn all of the fuel in the cylinder. The idle air control valve is a unit that monitors the air intake as it is mixed with fuel prior to being injected into the motor. When this is not working properly, this can cause an imbalance in the air/fuel mixture resulting in too much or too little fuel being supplied to the motor causing it to stall. I would recommend having an expert from YourMechanic come to your location to take a look at your car to properly diagnose and repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. It does not stay on

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car smoking under hood and spraying antifreeze everywhere, but not overheating

Hi, thanks for writing in. Either the bleeder screw was not properly tightened, or the bleeder screw (or worse yet possibly) the radiator is damaged and has begun leaking, and the fan is spraying the hot and high pressure coolant...

Q: Clicking noise while turning. Possibly the CV joints?

Yes, a clicking noise on turns is a classic symptom of a failed outer CV joint. If there are visible loose parts, this will be easier to diagnose. CV axle replacement is a very straightforward and is a common repair....

Q: Q: Fuel EVAP line that runs under car is kinked how do I know if it is leaking? Also can I drive it like that if it's not leaking?

Hi there. In most cases, an EVAP leak will create an OBD-II trouble code, which is the best way to detect an EVAP leak. By having a professional mobile mechanic complete a check engine light inspection, they will be able...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.