Mustang GT MMR 750 shortblock (281c.i.) at 8.95:1, stock 2v heads/cams with Kenne Bell 2.1. Tuned via email by Rick @ amazon
The car is throwing P0316, and P0304. The car feels slightly shaky but the idle is steady. I replaced the #4 COP and tested the injector with a multimeter and it read 17ohms when the car was at operating temp. I tested another injector too and it read the same so I ruled that out.
I replaced that spark plug a few weeks ago when the car was very shaky, much worse than it is now (idle still steady) and throwing the same codes. That definitely helped but it didn't completely fix the miss apparently. However, I cleared the code myself when I replaced the plug a few weeks ago and it just popped back up. Picture of plug pulled a few weeks ago is below.
I will be pulling the #4 plug again later this evening to make sure its good.
I have them gapped at .032
I'm using NGK TR6's
I replaced the passenger side factory 02 sensor with an "OEM replacement" Bosch from autozone in July.
I can email a few datalogs if that would help.
Thanks in advance for any help you can give!
The car is throwing P0316, and P0304. The car feels slightly shaky but the idle is steady. I replaced the #4 COP and tested the injector with a multimeter and it read 17ohms when the car was at operating temp. I tested another injector too and it read the same so I ruled that out.
I replaced that spark plug a few weeks ago when the car was very shaky, much worse than it is now (idle still steady) and throwing the same codes. That definitely helped but it didn't completely fix the miss apparently. However, I cleared the code myself when I replaced the plug a few weeks ago and it just popped back up. Picture of plug pulled a few weeks ago is below.
I will be pulling the #4 plug again later this evening to make sure its good.
I have them gapped at .032
I'm using NGK TR6's
I replaced the passenger side factory 02 sensor with an "OEM replacement" Bosch from autozone in July.
I can email a few datalogs if that would help.
Thanks in advance for any help you can give!
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