Low power issue
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Tuned
Joined: Dec 2018
Posts: 337
Likes: 5
From: Chickaloon, Alaska
I have tried an alternative IPR and it did the same thing so it doesn’t make me think IPR especially since it’s making 3,800psi deadheaded
Mountain Pass
Joined: Dec 2020
Posts: 144
Likes: 24
From: Dallas, OR
Sorry, I missed that part.
Lead Driver
Joined: Jul 2017
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From: WV
Thread Starter
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Tuned
Joined: Dec 2018
Posts: 337
Likes: 5
From: Chickaloon, Alaska
No change in number after replacing the o rings. It did make fuel pressure more stable around 62-64psi as the lower o rings were shot on the injectors. Still seems to be lacking power and has same readings on numbers.
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Tuned
Joined: Dec 2018
Posts: 337
Likes: 5
From: Chickaloon, Alaska
I might try to do that one of these days just to make sure it doesn't die off when it gets warm.
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Thread Starter
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Tuned
Joined: Dec 2018
Posts: 337
Likes: 5
From: Chickaloon, Alaska
Alright did a bunch of testing tonight. I forgot all my testing before was in 1023's custom tunes on the Cummins killer tune. Now I am leaning towards my hpop just not being able to stay caught up to the tune. So heres the test in stock tune
Heres the run in Cummins Killer Tune (1023)
Here is an idle video after I got home.
And here is my HPOP test after running so the engine was warm.
After all this I think my hpop is getting worn out and can't keep up with the tunes. It might make pressure at idle and the deadhead test but I think the flow is lacking and it shows in the high power tunes. THe idle sounds clean and no vibrations which makes me lean away from injectors. What do you guys think?
Heres the run in Cummins Killer Tune (1023)
Here is an idle video after I got home.
And here is my HPOP test after running so the engine was warm.
After all this I think my hpop is getting worn out and can't keep up with the tunes. It might make pressure at idle and the deadhead test but I think the flow is lacking and it shows in the high power tunes. THe idle sounds clean and no vibrations which makes me lean away from injectors. What do you guys think?
Thread Starter
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Tuned
Joined: Dec 2018
Posts: 337
Likes: 5
From: Chickaloon, Alaska
Pulled out my old android phone and ran a contribution test and buzz test. Buzz tested sounded fine but it through a code for cylinder 3 and 8 and also injector high side open bank 1 and 2. Now it sounds injector related.....I know 8 can be always happen due to the LL injector but 3 is unsual I think.
Mountain Pass
Joined: Dec 2020
Posts: 144
Likes: 24
From: Dallas, OR
My truck had cylinder 3 and 8 codes on the CCT before my injectors were replaced 15k ago. It still throws the same codes most of the time on the CCT. I wouldn't make any decisions based solely on those CCT results.
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Tuned
Joined: Dec 2018
Posts: 337
Likes: 5
From: Chickaloon, Alaska
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