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could it be ecu? or mas? or boost leak???

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DSMjrv

15+ Year Contributor
352
0
Dec 29, 2004
corona, California
okay i just got my car and it ran fine for the first couple days... then i upped the boost to about 14psi... on stock injectors, cuz i think thats aobut the limit... so today i was just cruizing around at about 3k rpms when all of the sudden my car starts to bogg... starts running really rough with like a pulsating studder... if i floor it, it still builds boost and climbs rpms but very slowly... if i push in the clutch it idles with the same studder... the only way to get it to stop running like crap is to turn it off and then turn it back on again... then it will run fine just like before untill i start cuizing at 3k or more rpms...

so since the only fix is to cut power and turn it back on again im assuming it has something to do with an electrical component... anyone ever had this before?
 
oh and ever since that happend my check engine light has been on...
 
do u have an Apexi SAFC?, if u do ,check it and see if it got reset , u may need to change it back to karman
 
DSMjrv said:
oh and ever since that happend my check engine light has been on...
First thing I would do is goto Autozone and pull the cel code. All of your speculations are pretty much right on. Pull the ECU and inspect for leaks then perform a boost leak test.
 
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