okamo11

Hi,

I'd like to know how ECU decide the Throttle status Open or Close.

My Lotus elise have idle error, bit high idle like 1,000 to 1,500rpm.

I checked trouble status by PSCAN but nothing is detected.
Then, I check sensor status and I found strange behavior with Throttle status.
Even nothing operate from pedal, Throttle status shows "open" on PSCAN. It seems "Throttle status open" activate to avoid engine stop.

For example,
just after throttle off, engine speed is down to idle like 800rpm then ECU may recognize throttle open by throttle status "OPEN" even not to operate pedal and idle come to 1,400rpm.

I'd like to know how Throttle status is decided.

I already replace Throttle Position Sensor assembled with Butterfly but nothing is different.

It seems something other reason may have an effect to decide Throttle status.

Need someone's help.


Thanks,