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View Full Version : Sputtering problems!!!!!


Mikej9870
12-13-2014, 10:09 AM
About a month ago my s13 blacktop sr started sputtering really bad as soon as it starts making boost. The car will pop and bang on idle shakes bad. This problem literally happened over night. When I get into it the car will sputter almost like antilag. It'll pop an bang and bick..So what I've done so far is I changed the maf and the first one I put on my car wouldn't stay running for more then 2 seconds. So I bought a brand new Isis z32 (which my car is tuned for) and now my car stays running but it still sputters. I've replaced the plugs. I've put a brand new aem 320lph fuel pump. Used to have walbro. I've put brand new cts sensor. Had a friend try adjusting and retarding the timing. I've checked all vacuum lines. Replaces all clamps with tbolts. Checked fuel filter checked coils. Don't see anything electrically bad now bare wires or rubbed. My Ecu is flashing code 55. This problem is gonna be the death of me. Can someone please help as this is my first sr and I'm still learning!

OnTheChip
12-14-2014, 10:04 AM
Could be the fuel pressure regulator.