S550Felipe
Member
- Joined
- Aug 4, 2020
- Threads
- 6
- Messages
- 19
- Reaction score
- 4
- Location
- Los Angeles , CA
- First Name
- Felipe
- Vehicle(s)
- 2017 Mustang GT
- Thread starter
- #1
I recently got a ported 18 mani and 47lb Injectors installed on my car. I also installed a p51 intake. The car is tuned by lund. I have trouble codes p0300 and p0316. The problem I have is that my cars rpms randomly go up and down. Also if I rev the car a bit while in neutral it will rise up then completely go down and the car will shut off. Also if im driving in the street and go into neutral it will sometimes just die off. Ive also noticed that when I blip the throttle to rev match , the rpms kind of hesitate to go up. This was happening only on e85 but it now happens on 91 as well.
I have already changed the spark plugs and checked the coils.
Any help would be appreciated. Thanks!
I have a video of the car shutting off but idk if I can post that.
I have already changed the spark plugs and checked the coils.
Any help would be appreciated. Thanks!
I have a video of the car shutting off but idk if I can post that.
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