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Fuel Cut off on lower RPM then before!!! What does it mean??
Hello all!
Has the title say something strange start to happen on my SGII readings...
So when coasting in gear downhill the SGII always show me 0,00 lt/100km under 1800 rpms. Above that it shoes 1,2 lt/100km or more...
I know that very well because I always try to maintain under so I can get better mpg...
About a week or so ago, it only shows 0,00 lt/100 under 1500rpms!!!
And above 1500 rpms shows 1,2 or more...
What in the hell just happen to change the fuel cutoff from 1800 rpms to 1500 rpm when coasting in gear???
Should it be the SGII that is giving bad information? (the readings are matching with onboard computer...)
Or should it be someting with the car??
It's a 2007 european hatch civic with the 1.8 i-vtec R18 engine.
It has an EGR, a MAP sensor, and a drive by wire throttle with eletric butterfly intake...
The SGII scans no ecu errors...
Maby EGR needs a cleaning although doesnt usually get to dirty on petrol engines ?!
Or MAP sensor misreading?!
Or the intake butterfly doesnt close entirely and needs cleaning?
Or maby I shouls reset the ECU?
Or injectors? (I dump a bottle of Wynns Injector cleaning on this tank to see if it makes any difference...)
Does this happen with any of you?
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