Fuel cut...Help please

apx5

New Member
Aug 13, 2005
9
0
0
Burnaby, B.C.
Hi guys,

The car is hitting fuel cut at aprox 7-8 psi. It started hitting fc at 16 psi and is now getting worse. It feels like boost leak but I've tested all intake & intercooler pipes with 22 psi and no leaks even after 10 min. I've check timing and it's good. Also checked for vacuum leaks, checked cps & wiring, knock sensors & wiring and all grounds. Fuel pressure is good and ecu has been swapped with a known good one. I've also tried a new GM maf sensor.

Mods on the car are: MAFT, walbro fuel pump, RC 550 injectors, 20g turbo and other supporting mods.

All help would be greatly appreciated.

Thank you

Lee