I have a 23 boost 155 that has around 400 miles. It has ran great until the last few rides
It would run good for about half the day then it would pop out the exhaust and then fall on its face when boost would start to increase and eventually throw detonation code. If I rode easy without getting on the throttle it runs fine. Once I to try to give full throttle it acts up. So sometimes it will run for hours with out an issue and sometimes only about 45 min.
I have defiantly felt that on warmer days it is worse then when it’s cold. It also feels sluggish until I drop in altitude or could be due to cooler running since I’m going fast at low load. Ride between 7k at truck and 9k on top
Details
Has a Can and clutching.
Stage 2 tune for pump gas 91 none E
Have rode it with this pretty much from day one. With out issues until recently
I have the Ez Link and have data logged it a few times but nothing pops out.
I have checked reeds and intake boot all look new
I have checked all the sensor connections
The data logs show solid 59-63 fuel pressure
Tried 50/50 mix of 91 none E and 100ll
Have always ran 91 none E
Changed spark plugs 2 different times. The first time it happens I changed plugs on the way back to the truck it then ran great. Next ride after lunch acted up again. Changed plugs again no change.
Did relearn on exhaust Valves and waste gate
I added some fuel injector cleaner and thought that helped some
Have had the mag side spark plug loosen 2 times so I know it is actually hitting detonation. I have not been able to get a complete ride in with the stock tune to see if it ran different but it doesn’t seem to be a tune issue since it’s so intermittent.
Feels like a fuel issue like the secondary injectors are not firing.
Possible MAP/boost sensor
Intake air temp sensor
Anyone experienced anything like this?
