Mazda 2 1.4 Injector Issues
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Junior Member
Joined: Jan 2020
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From: Chester
Mazda 2 1.4 Injector Issues
Hi everyone,
I have been having issues with my injectors recently and thought I might share what happened in case anyone may be having similar problems on the 1.4 diesel.
I had a glow plug error and decided to check the resistances of the glow plugs, having examined the condition I reassembled the air box and went to start the car. The car struggled to start and was running on 2 cylinders. I plugged my OBD reader into the car and had a fault code for Injector 1 and 2.
I then removed the air box again to get to the injector loom and disconnected the injector connectors. I tried reading the resistance off the connector plug and for injector 3 and 4 and got a reading of around 7.24k Ohms. I could not get a reading for 1 and 2. I then disconnected the harness from the central electronics (located next to the fuel filter) and tested for continuity from the pins to each connector, all of them were showing a reading meaning there was no breaks in the cables. I then reconnected the loom to the electronics (all be it with a bit of difficulty because the fuel filter was restricting access) and restarted the car, it was running fine. So I reassembled the airbox and it was down 2 cylinders again. When I removed the airbox (for the third time that day) I noticed the connector had been knocked by the intake pipe which runs underneath. I adjusted the connector and this time when reinstalling the airbox making sure to keep pushing on the connector to keep it straight. The car this time started perfectly and is now running better than I have ever had it run before, definitely being up on power. It seems that if you do any engine work on that car, this can happen and even before I played with the glow plugs the connection was not secure.
I was also having occasional "misfires" (or however best to describe this behavior on a diesel) and these have never come back since. If anyone has any hesitation or slight drop in power, especially if any work has been done, this could be the cause. Thought I would put this out there if it means saving someone an afternoon of trying to figure what had happened like what happened to me.
Thanks.
I have been having issues with my injectors recently and thought I might share what happened in case anyone may be having similar problems on the 1.4 diesel.
I had a glow plug error and decided to check the resistances of the glow plugs, having examined the condition I reassembled the air box and went to start the car. The car struggled to start and was running on 2 cylinders. I plugged my OBD reader into the car and had a fault code for Injector 1 and 2.
I then removed the air box again to get to the injector loom and disconnected the injector connectors. I tried reading the resistance off the connector plug and for injector 3 and 4 and got a reading of around 7.24k Ohms. I could not get a reading for 1 and 2. I then disconnected the harness from the central electronics (located next to the fuel filter) and tested for continuity from the pins to each connector, all of them were showing a reading meaning there was no breaks in the cables. I then reconnected the loom to the electronics (all be it with a bit of difficulty because the fuel filter was restricting access) and restarted the car, it was running fine. So I reassembled the airbox and it was down 2 cylinders again. When I removed the airbox (for the third time that day) I noticed the connector had been knocked by the intake pipe which runs underneath. I adjusted the connector and this time when reinstalling the airbox making sure to keep pushing on the connector to keep it straight. The car this time started perfectly and is now running better than I have ever had it run before, definitely being up on power. It seems that if you do any engine work on that car, this can happen and even before I played with the glow plugs the connection was not secure.
I was also having occasional "misfires" (or however best to describe this behavior on a diesel) and these have never come back since. If anyone has any hesitation or slight drop in power, especially if any work has been done, this could be the cause. Thought I would put this out there if it means saving someone an afternoon of trying to figure what had happened like what happened to me.
Thanks.
Junior Member
Joined: Oct 2021
Posts: 1
Likes: 0
From: uk
Hi everyone,
I have been having issues with my injectors recently and thought I might share what happened in case anyone may be having similar problems on the 1.4 diesel.
I had a glow plug error and decided to check the resistances of the glow plugs, having examined the condition I reassembled the air box and went to start the car. The car struggled to start and was running on 2 cylinders. I plugged my OBD reader into the car and had a fault code for Injector 1 and 2.
I then removed the air box again to get to the injector loom and disconnected the injector connectors. I tried reading the resistance off the connector plug and for injector 3 and 4 and got a reading of around 7.24k Ohms. I could not get a reading for 1 and 2. I then disconnected the harness from the central electronics (located next to the fuel filter) and tested for continuity from the pins to each connector, all of them were showing a reading meaning there was no breaks in the cables. I then reconnected the loom to the electronics (all be it with a bit of difficulty because the fuel filter was restricting access) and restarted the car, it was running fine. So I reassembled the airbox and it was down 2 cylinders again. When I removed the airbox (for the third time that day) I noticed the connector had been knocked by the intake pipe which runs underneath. I adjusted the connector and this time when reinstalling the airbox making sure to keep pushing on the connector to keep it straight. The car this time started perfectly and is now running better than I have ever had it run before, definitely being up on power. It seems that if you do any engine work on that car, this can happen and even before I played with the glow plugs the connection was not secure.
I was also having occasional "misfires" (or however best to describe this behavior on a diesel) and these have never come back since. If anyone has any hesitation or slight drop in power, especially if any work has been done, this could be the cause. Thought I would put this out there if it means saving someone an afternoon of trying to figure what had happened like what happened to me.
Thanks.
I have been having issues with my injectors recently and thought I might share what happened in case anyone may be having similar problems on the 1.4 diesel.
I had a glow plug error and decided to check the resistances of the glow plugs, having examined the condition I reassembled the air box and went to start the car. The car struggled to start and was running on 2 cylinders. I plugged my OBD reader into the car and had a fault code for Injector 1 and 2.
I then removed the air box again to get to the injector loom and disconnected the injector connectors. I tried reading the resistance off the connector plug and for injector 3 and 4 and got a reading of around 7.24k Ohms. I could not get a reading for 1 and 2. I then disconnected the harness from the central electronics (located next to the fuel filter) and tested for continuity from the pins to each connector, all of them were showing a reading meaning there was no breaks in the cables. I then reconnected the loom to the electronics (all be it with a bit of difficulty because the fuel filter was restricting access) and restarted the car, it was running fine. So I reassembled the airbox and it was down 2 cylinders again. When I removed the airbox (for the third time that day) I noticed the connector had been knocked by the intake pipe which runs underneath. I adjusted the connector and this time when reinstalling the airbox making sure to keep pushing on the connector to keep it straight. The car this time started perfectly and is now running better than I have ever had it run before, definitely being up on power. It seems that if you do any engine work on that car, this can happen and even before I played with the glow plugs the connection was not secure.
I was also having occasional "misfires" (or however best to describe this behavior on a diesel) and these have never come back since. If anyone has any hesitation or slight drop in power, especially if any work has been done, this could be the cause. Thought I would put this out there if it means saving someone an afternoon of trying to figure what had happened like what happened to me.
Thanks.
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