No fuel no spark

Tiny
RHINO228
  • MEMBER
  • 2005 MAZDA 6
  • 2.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 143,000 MILES
Drove my car all day yesterday then parked overnight and went to start it, it had no spark or fuel.
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Thursday, March 28th, 2019 AT 10:23 AM

7 Replies

Tiny
SEVAG P
  • MECHANIC
  • 405 POSTS
Hello thanks for using 2CarPros.

As a first step check the fault codes.
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is our guide for engine does not start:
https://www.2carpros.com/articles/car-cranks-but-wont-start

it seems crank shaft sensor not working if you don't get spark and fuel check fig 1 and fig 2 for sensor check and its location.
send us feed back what happens with you.
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Thursday, March 28th, 2019 AT 11:53 AM
Tiny
RHINO228
  • MEMBER
  • 4 POSTS
I can't even hear pump prime when I turn key though. Could that cause the issue?
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Thursday, March 28th, 2019 AT 11:58 AM
Tiny
SEVAG P
  • MECHANIC
  • 405 POSTS
Please check fuel pressure and check if spark is present.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
https://www.2carpros.com/articles/how-to-test-an-ignition-system

Have you checked for fault codes?
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Thursday, March 28th, 2019 AT 12:19 PM
Tiny
RHINO228
  • MEMBER
  • 4 POSTS
0 pressure and no fault codes.
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Thursday, March 28th, 2019 AT 1:04 PM
Tiny
SEVAG P
  • MECHANIC
  • 405 POSTS
It seems fuel pump is not working, check fuel pump supply voltage, as a first step check fuel pump fuse which is located at engine compartment fig 1, check the fuse 18 which is the fuel pump fuse, check if its good, also by using voltmeter check fuse voltage on both pins 12v must be present ignition on, if they are good check the fuel pump relay which is located at left side front side trim check fig3, fig4, fig5.
Check the relay then remove its run a jumper wire between relay pins 30 and 87, or B and D, fuel pump must be activated, if not it can be disconnected wire between relay and fuel pump, or fuel pump defected.
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Thursday, March 28th, 2019 AT 2:28 PM
Tiny
RHINO228
  • MEMBER
  • 4 POSTS
Checked those it's all good there. Someone said it might be something called PCM?
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Thursday, March 28th, 2019 AT 2:40 PM
Tiny
SEVAG P
  • MECHANIC
  • 405 POSTS
Check fig 1 fuel pump relay activation pins are point K control ground on relay connector which comes from PCM pin 95 fig2 and point I positive which comes from fuse and relay box on left front inner fender panel fig3, by using voltmeter check if voltage present between pins K and I, if their is absence of ground at pin 95 then PCM defected or its wire disconnected, absence of positive then check the fuse.
Another check for the PCM jump wire between relay connector pin B and D fig1 fuel pump must be activated, then the problem is between PCM and the fuse.
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Thursday, March 28th, 2019 AT 3:15 PM

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