4G93 DOHC Problems
- Thread starter drummydrew
- Start date
sanekit
1,500 RPM
sorry, i didnt make myself clear last time. i wanted to see the whole installation from the fuel rails, hose type, connection and all. haha. but i guess everything is installed correctly then.
sanekit
1,500 RPM
UPDATE: i just made sure the FPR is fitted, hoses trimmed and screwed on properly. the mechanic who installed it didn't tighten down one of the nut..sorry, i didnt make myself clear last time. i wanted to see the whole installation from the fuel rails, hose type, connection and all. haha. but i guess everything is installed correctly then.
started the car and the dial up noise is no more! (DIY FTW) problem now is i can't seem to get an exact 3.2 adjustment, every time i lock the bigger nut it'd go slightly off
will drive it later, observe and update.really thanks for pointing out
So the scrapping sound also gone?
Using long screw driver are old school mechanics. My mechanic does the same......lol
Using long screw driver are old school mechanics. My mechanic does the same......lol
yes i learnt something old school today!
back from test driving, quiet initially but the dial up noise came back later on
probably a defected FPR, gonna ask for warranty replacement. getting the alternator and compressor checked by AC guy tomorrow.
sanekit
1,500 RPM
if it doesnt affect your driving, why change it? hehe. swap muffler and piping to compensate for the dial-up noise.yes i learnt something old school today!
back from test driving, quiet initially but the dial up noise came back later on
probably a defected FPR, gonna ask for warranty replacement. getting the alternator and compressor checked by AC guy tomorrow.
whoaaaaaa that's cheating noise with noise! was on DUKE just now, the dial up noise was indeed overwhelmed or in fact, muted by the exhaust lmao! so wrong but so rightif it doesnt affect your driving, why change it? hehe. swap muffler and piping to compensate for the dial-up noise.
engine not healthy.. piping white smoke.. my fund is near to do full overhaul, but friends around me keep poisoning me to drop new headdrummydrew, if engine still healthy, might consider suspension dy....
UPDATES on AC/Idling problem: had my alternator charge rate checked, normal. AC compressor is the correct spec (15C) so that factor is eliminated too. the foreman tested a few spots, made sure the AC system is working fine and suggested it could be the throttle body (back to square one). this isn't his forte so he said best i look for friends who have similar rides to troubleshoot.
called this mechanic in sri kembangan, got my car fixed there once and he is one enthusiastic guy who's crazy over 4G engines, owns a mivec too. anyways, he said the problem could only be around the throttle body area. confirmed by few mechanics already, glad that its narrowed down to that area now :proud: will get it resolved soon. at the same time, jaring is still dialing up in my car :stupid:
sanekit
1,500 RPM
I thought you already fix the TB? Time for top overhaul and mivec TB.whoaaaaaa that's cheating noise with noise! was on DUKE just now, the dial up noise was indeed overwhelmed or in fact, muted by the exhaust lmao! so wrong but so right
engine not healthy.. piping white smoke.. my fund is near to do full overhaul, but friends around me keep poisoning me to drop new head
UPDATES on AC/Idling problem: had my alternator charge rate checked, normal. AC compressor is the correct spec (15C) so that factor is eliminated too. the foreman tested a few spots, made sure the AC system is working fine and suggested it could be the throttle body (back to square one). this isn't his forte so he said best i look for friends who have similar rides to troubleshoot.
called this mechanic in sri kembangan, got my car fixed there once and he is one enthusiastic guy who's crazy over 4G engines, owns a mivec too. anyways, he said the problem could only be around the throttle body area. confirmed by few mechanics already, glad that its narrowed down to that area now :proud: will get it resolved soon. at the same time, jaring is still dialing up in my car :stupid:
sanekit
1,500 RPM
very informative and helpful, thanks alot! i'll try working on that when i meet my friend who has the multimeter.
only clean serviced it last time, the most recent is fitting a new stepper motor to troubleshoot it. feels the same as the old one - bad idling still. if mivec TB what adjustments do i have to do? overhaul yes!! but i am also skeptical cos this engine has been overhaul 2-3 times (done badly) which contributed to its current condition - leakage, white smoke, dented pistons..I thought you already fix the TB? Time for top overhaul and mivec TB.
sho slowww like its never connecting:slug:
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