hey, for manual mitsu engine drivers, at what RPM do you guys change gears?

i normally change at 2.2k rpm, but if i need some extra ommph to overtake or whatever, 2.5k rpm... i dont accelerate/speed much

probably resonance. all mechanical systems will encounter resonance effects at one point or another. it is also around this RPM that you hear a large 'brroooom' sound from my waja when you're in the backseat. the aircond panels and a couple of other items also start to squeek at these RPMs in cold wheater

but if the vibration is too great than the something is not right liao!

hello everyone

we have a manual 4.5yold waja [4G18 engine].

dad sent it in to change the clutch the other day, batt taken out the whole day. after that many times the engine would start and the rpm would drop to zero and almost all the time, the idling rpms are around 600~750, lower than the normal 850~950.

took it back to reset the ECU and it was okay, then the problems started appearing the next day. took it in again and they did something to the ECU now the engine doesnt 'die', but the rpms are still low.

the guy there insists that there is something wrong with the ECU [replacement is ~rm3k rite? ]. was wondering if any of you have any experience with this?

yeah!! we thought so too.

im curious by 'tune properly' <---tune what?

service centre, maddriver. dont know, they seem extremely unhelpful in trying to solve the problem, putting the blame solely on the ECU. what theyre saying doesnt really make sense thats why im here asking for advice