Hello guys..am experiencing bad times with my b18c...We have check all sensors,the output values,replaced most sensors except knock and o2 sensor.I've no cel on.I already scan for codes..No code found..We are unable to find the problem now...Is there anyone who can help me eliminate this issue?The plugs are black,really rich.Bad throttle response.

Symptoms of how the engine acts:If i press gas pedal and hold rpm at 2500rpm as an example...the rpm would fluctuate from 2100 to 2500.But this happens only when engine gets to some temperature.When cold if i repeat the same thing,its steady at 2500rpm without bouncing..And now if i unplug either map,tps or ect sensor..start engine,cel on.and repeat acceleration at 2500rpm it doesn't fluctuate.It is very strange...I don't have any idle issue..It fluctuates only on engine acceleration...

 

anyone??

 

Maybe check grounds and try a dif ecu if one is available. Is the engine stock?

 

Check for any blown fuses? Sometimes ELD will blow and cause this

 

ok..The engine is stock.Its rare in my country to find an alternate ecu for testing,but if i come across one i'll try it and see.

I'll check the fuses today and replace the eld as i have one fuse box at home as spare.Thanks guys.Will update you if there is any improvement.

 

Hi brother,
i am experiencing the same issue on my honda.
the rpm bounces at 2-2500 . And engine has sound gas also burns more no economy. I have been going through your thread about the same issue. Please help if you found any fix.
thanks in advance.