This is the case:
-If I open the throttle by ~ 10%... its reach 2000 RPM then its drop to 1500 RPM then weak up again to 2000 RPM and so on.
-If I open the throttle by ~ 20%... its reach 3000 RPM and stay smooth.
-If I open the throttle by ~ 100%... its reach ~ 4200 RPM then its drop to 4000 RPM then weak up again to 4200 RPM and so on.
I have replace the TPS, MAF, ECU and Fuel pump without any clue…
could be the oxygen sensor is the problem ?
Or let me ask… what will happen if you disconnect the oxygen sensors?
BTW, My sensors is single wire 93' LS400.
-If I open the throttle by ~ 10%... its reach 2000 RPM then its drop to 1500 RPM then weak up again to 2000 RPM and so on.
-If I open the throttle by ~ 20%... its reach 3000 RPM and stay smooth.
-If I open the throttle by ~ 100%... its reach ~ 4200 RPM then its drop to 4000 RPM then weak up again to 4200 RPM and so on.
I have replace the TPS, MAF, ECU and Fuel pump without any clue…
could be the oxygen sensor is the problem ?
Or let me ask… what will happen if you disconnect the oxygen sensors?
BTW, My sensors is single wire 93' LS400.
