Kzj78 hitting fuel cut

[deepcrates]

Hey all, so recently I’ve been noticing when i accelerate I sometimes will end up going past 10psi and getting fuel cut.

I don’t run a boost T or anything like that, so I shouldn’t be going over the normal stock boost levels.

Im guessing it’s potentially a wastegate issue.

I’m planning on replacing the actuator, but is there any other part I should look at that might be the culprit? I’m trying to price out the project.

Or maybe it’s something completely different.

Any help would be appreciated.

 

[GTSSportCoupe]

Make sure spill control valve screw has not been messed with (cap off or mangled). Sticks out of top of injection pump head.

 

[Tigris]

^ Correct,

Also but less common of a cause is a clogged up hose to the MAP sensor. There is a little filter that gets full of soot and gum due to EGR and PCV deposits. The filter itself is very cheap to replace but a lot of people neglect to clean the short hose/port that feed to it from the intake manifold. A quick poke with a suitable rod and some compressed air does a good job.

Worth doing anyway since it's so easy.

Best of luck!