Z_Dash Clutched April 9, 2012 Share April 9, 2012 Feeling my car has slightly sluggish acceleration. Usually i just need to depress abit to move off or maintain cruising speed (of 80km).......but recently kinda feel i need to depress significantly more to maintain speed or accelerate compared to my past few months of drive. -Checked tyres air pressure alright -engine oil changed to Mobil One green for a month liao......along with oil filter changed -CVT oil dealer changed for me 6mths ago which was about 12000km before - Petrol using the same throughout past 4mths - Air filter using K&N and i washed it about 8000km (4mths) ago. What could possibly cause for less drive power? ↡ Advertisement Link to post Share on other sites More sharing options...
Versatile 1st Gear April 9, 2012 Share April 9, 2012 Feeling my car has slightly sluggish acceleration. Usually i just need to depress abit to move off or maintain cruising speed (of 80km).......but recently kinda feel i need to depress significantly more to maintain speed or accelerate compared to my past few months of drive. -Checked tyres air pressure alright -engine oil changed to Mobil One green for a month liao......along with oil filter changed -CVT oil dealer changed for me 6mths ago which was about 12000km before - Petrol using the same throughout past 4mths - Air filter using K&N and i washed it about 8000km (4mths) ago. What could possibly cause for less drive power? Throttle body. Dirty TB can cause sluggish acceleration. Link to post Share on other sites More sharing options...
MrFlax Neutral Newbie April 9, 2012 Share April 9, 2012 most likely its due to the adaptive ECU, if i am not wrong u must have been very light-footed in the last few months. what CVT ride you have now? Teana? A4 S-line? try being a bit very heavy-footed for a week or two and you will find your ride back to normal once your ECU adapts back Link to post Share on other sites More sharing options...
Hermit 1st Gear April 9, 2012 Share April 9, 2012 agreed, could be TB. Can try cleaning MAF too.. Worst case scenario- O2 sensor going up the lorry. But you should see CEL for this. Link to post Share on other sites More sharing options...
Dragonl 1st Gear April 9, 2012 Share April 9, 2012 TB n injection may be dirty. Times to send it for drips.... ECU notmaffected unless u remove battery totally without engine running. All else fail then check O2 sensor. Not copying everyone else suggestion. This is the full troubleshooting steps. Usually problem will goes away after TB ad injection r clean. Link to post Share on other sites More sharing options...
Mindbox33 1st Gear April 9, 2012 Share April 9, 2012 recently i use a better quality engine oil n regap my spark plugs.. my fc push up to 12km per L than last time 10.5km per L.... before all tis changes... Link to post Share on other sites More sharing options...
Yuan 6th Gear April 9, 2012 Share April 9, 2012 Feeling my car has slightly sluggish acceleration. Usually i just need to depress abit to move off or maintain cruising speed (of 80km).......but recently kinda feel i need to depress significantly more to maintain speed or accelerate compared to my past few months of drive. -Checked tyres air pressure alright -engine oil changed to Mobil One green for a month liao......along with oil filter changed -CVT oil dealer changed for me 6mths ago which was about 12000km before - Petrol using the same throughout past 4mths - Air filter using K&N and i washed it about 8000km (4mths) ago. What could possibly cause for less drive power? My opinion is take out the K&N and use back stock paper filter. The sluggish performance might go away. Link to post Share on other sites More sharing options...
Gasguzzler 1st Gear April 9, 2012 Share April 9, 2012 All you need to do is pour in a bottle of fuel injector cleaner into your gas tank, find an empty stretch of road and do an Italian tune up. Link to post Share on other sites More sharing options...
Yeobh 4th Gear April 9, 2012 Share April 9, 2012 Check yr ride igntion system, spark cables and spark plugs. Chances of cable loose connections or cables are aging causing higher resistance resulting in lower KV when spark fire up. Link to post Share on other sites More sharing options...
Fennmax Clutched April 9, 2012 Share April 9, 2012 My tuner recommended to clean the MAF sensor every 6 months, try it. Also, try cleaning your injector and TB. If your car is tuned, not recommended to clean TB as the ECU need to be reset. Also, the usual wear n tear esp Intake, exhaust and fuel system. Link to post Share on other sites More sharing options...
Good-Carbuyer 1st Gear April 9, 2012 Share April 9, 2012 Feeling my car has slightly sluggish acceleration. Usually i just need to depress abit to move off or maintain cruising speed (of 80km).......but recently kinda feel i need to depress significantly more to maintain speed or accelerate compared to my past few months of drive. -Checked tyres air pressure alright -engine oil changed to Mobil One green for a month liao......along with oil filter changed -CVT oil dealer changed for me 6mths ago which was about 12000km before - Petrol using the same throughout past 4mths - Air filter using K&N and i washed it about 8000km (4mths) ago. What could possibly cause for less drive power? My only this afternoon the engine not smooth and lack acceleation power (last few days I did not drive car). Link to post Share on other sites More sharing options...
5936 1st Gear April 9, 2012 Share April 9, 2012 (edited) Your car is sick. Need some medications. Feed him a bottle of fuel system or fuel injector cleaner into fuel tank. I think that will do first. If not its sore throat. Need to clean MAP sensor and TB as you use K&N. Edited April 9, 2012 by 5936 Link to post Share on other sites More sharing options...
Qrio Neutral Newbie April 9, 2012 Share April 9, 2012 My only this afternoon the engine not smooth and lack acceleation power (last few days I did not drive car). Afternoon's temperature high.. Confirm lost power compared to night. Bcos cold air contain more oxygen molecules which is better for combustion.. :) Link to post Share on other sites More sharing options...
Z_Dash Clutched April 9, 2012 Author Share April 9, 2012 most likely its due to the adaptive ECU, if i am not wrong u must have been very light-footed in the last few months. what CVT ride you have now? Teana? A4 S-line? try being a bit very heavy-footed for a week or two and you will find your ride back to normal once your ECU adapts back Driving Honda Fit GE6. Yea......has been very light footer but till last month became heavy footer and found my FC to be much better when i accelerate slightly harder to reach cruse speed. agreed, could be TB. Can try cleaning MAF too.. Worst case scenario- O2 sensor going up the lorry. But you should see CEL for this. Drat.....i remembered using fiber cloth to clean my MAF sensor wire when i had error light. That could be one of the cause. My opinion is take out the K&N and use back stock paper filter. The sluggish performance might go away. But been on K&N for quite a while......was ok back then. Link to post Share on other sites More sharing options...
Z_Dash Clutched April 9, 2012 Author Share April 9, 2012 I guess two things i gotta do - Clean MAF sensor (properly) :P - Clean throttle body Link to post Share on other sites More sharing options...
Good-Carbuyer 1st Gear April 10, 2012 Share April 10, 2012 Afternoon's temperature high.. Confirm lost power compared to night. Bcos cold air contain more oxygen molecules which is better for combustion.. :) I am a little concern if that is due to 0W-40 engine oil left after a few days without running the engine. Hope the next days can find out. Link to post Share on other sites More sharing options...
Aloytryp Neutral Newbie April 10, 2012 Share April 10, 2012 Agreed with most of them. TB and Sensor need to be cleaned. Change back to stock air filter. Link to post Share on other sites More sharing options...
Z_Dash Clutched April 15, 2012 Author Share April 15, 2012 Any bros can advice the rough pricing i should expect for getting workshop help to check and clean Throttle body? Was quoted about SGD$60 for doing a check and cleaning of Throttle body + MAF sensor. ↡ Advertisement Link to post Share on other sites More sharing options...
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