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|11th January 2009, 13:59||#16|
Swift Vxi petrol- Oct 2007 model, still in warranty
ODO - 17,500 kms
I am fed up of going to MASS again and again. Everytime they give me a different story.
How do you check the compression of cylinders - Can local garages do?
Sparkplugs - Yes. I will check tomorrow.
Airfilter is clean. I took it to the local garage before going to MASS. Initially I suspected this was the culprit.
Butterfly valve - Can the local garages check? I am asking this because the MASS is not ready to listen to anything I say, they have their own fairy tale.
Work in the sense, mods? my car is complete stock. Just that I have a high-end in-dash DVD player which is after market.
|11th January 2009, 22:40||#17|
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For low rpm and speed of the swift.
Check the butterfly valve for proper opening.
Check the petrol fuel pressure generated by the fuel pump.
Last but not the least check the valve clearance.
Personally I think its the pressure from the fuel pump being insufficient or the injectors not staying open long enough which is governed by the ECU.
|11th January 2009, 23:04||#18|
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I think data from a ecu scan should be analyzed to give a proper diagnosis. I also feel that either the injectors are chocked or the fuel pressure is low . Short fuel trim and Long fuel trim data from ecu can help in better diagnosis also look for inlet manifold vacuum leaks.
|12th January 2009, 10:51||#19|
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The swift has hydraulic valve clearance system and no major adjustments can be made. However if needed, the valve clearance needs to be set dead cold (The car must be stationary overnight). There is no way MASS can set the correct valve clearance within a day (For accurate setting, the car needs to be with them idle for atleast 6-8hours). Also check the connections to the O2 sensor ,throttle position sensor and accelerator cable adjustment(Move the swivel by hand to see if it opens fully and then leave it to see if there is any undue slag / tightness in the cable)
Finally one thing that you may try for the sake of trying is to disconnect the battery for half an hour to reset the ecu and then reconnect the battery. May be that may work
Last edited by adheesh : 12th January 2009 at 10:53. Reason: Text Added
|12th January 2009, 15:52||#20|
Amit, Vikram, Drpullockaran, ask77 and adheesh, Thank you all for your help! I have written everything down and will take it to Mandovi tomorrow to have all these checked.
|12th January 2009, 16:01||#21|
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