- Spoon ECU
- Spoon Flywheel
- Spoon Plug Wire
- Spoon throttle body (TPS @ 0.5 volts to 0.495 volts engine off)
- JIC intake pipe
- Header & test pipe
- Fujitsubo Cat Back
- Voltage Stablizer (T1R) and ground kit
- JDM Evaporative Emission Control System (EVAP)
- Edelbrock fuel pump (255 L/hr)
- AEM regulator & gauger (50psi)
- Trust Timing belt
- Skunk 2 stage 1 cam
- Skunk 2 cam gear
- Apexi SAFC

Sens check In-1 2.715v
In-2 .08 - .075v
TH .5v - .495v

sensor type: Pressure IN 6
Out 6

Here is the situation: Regardless of the car being in idle mode or when driving; when I hold the trottle between 1500 and 3000 RPM, the RPM will suddenly drop 500 or 1000 rpm and then go back up. For example, if I hold the trottle at 2500 RPM, it will suddenly drop back down to 2000 and then jump back to 2500 and drop again down to 2000 and the SAFC TH% reading will from 2.5% drop to 0%, but the engine keep going up and down. Unless I increase the acceleration in which case it will go onto 3000 RPM and more.

I am running on 1 oxygen sensor right now, the 2nd one I have taken out. Could this be the possible cause of the problem? But the engine light did not light up, but I check the trouble codes by the plug at the passager side, there are 2 flashing on the engine light, what am I missing? Or do you guy think that the ECU is the problem? Coz I try the stock ECU also, it got the same problem.( JDM & USDM ECU)

THX anyone