Q: no spark fire no power to fuel pump computer won't communicate with code reader

asked by on

The computer won't communicate with code reader no spark fire to plugs the fuel pump has no power won't kick on
My car has an automatic transmission.

Hello, thanks for writing in. When dealing with this kind of situation, you need to start with the simplest options, and work your way down the list. When the electrical power supply is questioned, we need to rule out the battery, starter, and alternator first. Once we know we have a fully charged battery, the alternator will pass a bench test, and the starter is working we can turn to the ignition, or used those test results to take corrective action. If the ignition is allowing power from the battery to then go to the starter and the fuse box, then we need to make sure the fuse box is allowing power to pass to the separate systems. The goal is to trace the power supply to where it is loosing communication or connection. This kind of electrical testing is best done with a voltmeter and a wiring diagram. For more help resolving the issue, contact our service department to schedule an appointment.

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. no spark fire no power to fuel pump computer won't communicate with code reader

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 Stalled as I quickly changed from brake to gas pedal when approaching a red light that turned green going downhill.

There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially...

Q: whats the typical cost to replace a rear passenger bushing 2005 galant 4cyl.

There is more than one bushing at the wheel position you are inquiring about. The upper control arm has bushings as well as the lower control arm and the trailing arm assembly. In addition, the sway bar has bushings. The...

Q: Yaw sensor needs replacement

Hi there. Yes, the sensor, along with the dependent systems, require what is called a "zero point" calibration when it is replaced. The dealership does not have to be the entity that performs this calibration. However, it is dependent upon...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...