So last year my brother and I came to this Forum looking for some help with the dreaded P0300 Code on my 06 tj!
We read through countless posts, ran the gauntlet chasing this past and that part. Thousands of dollars and a great deal of frustration. I literally ran down the list replacing sensors, computers, checking compression, my last stop was an exhaust shop in Fontana (Roger's, super cool guy!) He went through everything and found nothing! Damn it!
Went home to start back at the beginning! Back to "fuel" so I looked at the new fuel injectors I already had (they didn't work, put the old ones back in and it was fine, but still had the P0300 code, that's why I have a new set of injectors), so starting fresh, i ordered a new set of wires, went through and soldiered new ones on, I should note that the red locking tab was missing on one of them FINALLY PROBLEM SOLVED! She runs great!
Yeah its been a rough year chasing this code! 20 bucks, some solider and shrink tube coupled with a Saturday afternoon and she's all better!
![1000020150.jpg 1000020150.jpg](https://wranglertjforum.com/data/attachments/514/514616-d749018d2705de3b7cb730880ce3d91c.jpg)
![1000019685.jpg 1000019685.jpg](https://wranglertjforum.com/data/attachments/514/514618-e2c93effa8ac743403d1af77357acc2f.jpg)
![1000018023.jpg 1000018023.jpg](https://wranglertjforum.com/data/attachments/514/514622-b86755df8b2ac627e6d1241cb13e7df8.jpg)
We read through countless posts, ran the gauntlet chasing this past and that part. Thousands of dollars and a great deal of frustration. I literally ran down the list replacing sensors, computers, checking compression, my last stop was an exhaust shop in Fontana (Roger's, super cool guy!) He went through everything and found nothing! Damn it!
Went home to start back at the beginning! Back to "fuel" so I looked at the new fuel injectors I already had (they didn't work, put the old ones back in and it was fine, but still had the P0300 code, that's why I have a new set of injectors), so starting fresh, i ordered a new set of wires, went through and soldiered new ones on, I should note that the red locking tab was missing on one of them FINALLY PROBLEM SOLVED! She runs great!
Yeah its been a rough year chasing this code! 20 bucks, some solider and shrink tube coupled with a Saturday afternoon and she's all better!
![1000020150.jpg 1000020150.jpg](https://wranglertjforum.com/data/attachments/514/514616-d749018d2705de3b7cb730880ce3d91c.jpg)
![1000019685.jpg 1000019685.jpg](https://wranglertjforum.com/data/attachments/514/514618-e2c93effa8ac743403d1af77357acc2f.jpg)
![1000018023.jpg 1000018023.jpg](https://wranglertjforum.com/data/attachments/514/514622-b86755df8b2ac627e6d1241cb13e7df8.jpg)