tarmac terror

iTrader: (2)

As the subject really - I have cleaned the throttle position sensor, Idle speed control valve, replaced my lambda probe with a new one from Subaru and replaced my MAF sensor with new as I have reverted back to using the OEM airbox.

When I have the engine switched off looking at my SECS monitor the Engine speed is showing as 25 RPM. Have I disturbed another sensor perhaps or is there something else I should be cleaning? This didn't happen before I cleaned or replaced the items mentioned above.

TT

3barboost

did the secs ever show less than 25rpm ?

tarmac terror

iTrader: (2)

yes. With the key turned to the position before ignition looking at the readout RPM would have been 0.

All this grief has came about since carrying out an earth mod, thats why lambda and MAF have been replaced.

Butty

iTrader: (2)

And does everything return to normal with the earth mods removed?

swisstonihasher

What happened during your earthing mods? I did my own setup and wires 6 in total and no such problem on secs

tarmac terror

iTrader: (2)

nothing happened as such - disconnecing the batttery cleared the ecu settings when I reconnected the battery there was a fault code 23 (MAF) and the car was hunting for idle. I added 5 earth points bringing each back to the battery negative.

Haven't tried undoing the new earths, was waiting to see if anyone came back with a suggestion of another sensor having been disturbed or something not connected causing the 25RPM gain.

ECU reset doesn't clear this issue, nor does disconnecing and reconnecting the SECS unit - Just puzzled by what has caused it.