Will not start

1993 MAZDA PROTEGE
19,500 MILES • 4 CYL • 2WD
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REGGIE ARRINGTON
  • MEMBER
  • 1 POST
I have changed the fuel pump and fuel pump relay and distribution and it still will not come on. please advise.
Feb 25, 2021 at 2:18 AM
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KASEKENNY
  • Experienced Mechanic
  • 18,907 POSTS
We need to start with finding out if we have fuel and ignition to find out if we still have an issue there.

Here is a guide that will help with this:

https://youtu.be/dCjmRL3p4Cs

Let's use some starter fluid in the intake and see if that helps get it started. If it doesn't then pull a plug out and hold it against the block and see if it sparks when you crank the engine.

If neither of these help then we need to test the compression and make sure that is okay.

https://www.2carpros.com/articles/how-to-test-engine-compression

If the engine is not starting then we need to find out if we are missing fuel, spark, or compression as these are the three things we need to get the engine to start. You need air as well but this is unlikely to cause the issue unless you have a blocked air filter.

When you pull the plugs, let's get some pictures of them and see what the tips look like. That will help determine what the possible issue is.

Let me know if you have questions. Thanks
Feb 25, 2021 at 11:36 AM
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