Aidan 1st Gear February 5, 2007 Share February 5, 2007 I recently changed to Denso iridium spark plugs and I noticed that sometimes when I start my engine. It fires up stop for less than a second before it fully starts my engine. Is it a case of Ignition misfire? How do you actually know? Any advice? ↡ Advertisement Link to post Share on other sites More sharing options...
Ghostrider 3rd Gear February 5, 2007 Share February 5, 2007 When you drive, the engine will sputter and jerk. Check for faulty ignition coils or cables...if before this did not happen, check for the plugs if they are ok. Best is to plug in a OBD reader...it will be able to tell you which cylinder is misfiring. Link to post Share on other sites More sharing options...
Pisces69 6th Gear February 5, 2007 Share February 5, 2007 Misfire is easy to detect under load. Accelerate hard & see if your car jerks or not? U might also get a bang sound from your exhaust. Cud b plugs, ignition wires, distributor or loose electrical connections. Link to post Share on other sites More sharing options...
Kelpie 2nd Gear February 6, 2007 Share February 6, 2007 Usually engine check light will be lighted if misfiring persistently. Regards, Link to post Share on other sites More sharing options...
Dieselord 2nd Gear October 21, 2014 Share October 21, 2014 sorry to bring up an old post... if no engine light.. any way to know which coil is problem? when driving slowly, when hit 2k rpm, den it seems to stuck there for awhile, b4 it goes up... is it coil issue? TIA Link to post Share on other sites More sharing options...
QQDreamer 4th Gear October 21, 2014 Share October 21, 2014 On 10/21/2014 at 3:38 AM, Dieselord said: sorry to bring up an old post... if no engine light.. any way to know which coil is problem? when driving slowly, when hit 2k rpm, den it seems to stuck there for awhile, b4 it goes up... is it coil issue? TIA likely could be cable issue also. or the plug itself Link to post Share on other sites More sharing options...
Dieselord 2nd Gear October 21, 2014 Share October 21, 2014 Plugs are new...hw to knw if it's coil or cable issue... Link to post Share on other sites More sharing options...
Airwaver 4th Gear October 22, 2014 Share October 22, 2014 On 10/21/2014 at 3:38 AM, Dieselord said: sorry to bring up an old post... if no engine light.. any way to know which coil is problem? when driving slowly, when hit 2k rpm, den it seems to stuck there for awhile, b4 it goes up... is it coil issue? TIA If Ignition coil problem, you'll feel engine vibrations. What do you mention by "stuck there for awhile"? Link to post Share on other sites More sharing options...
Dieselord 2nd Gear October 22, 2014 Share October 22, 2014 Dun feel vibrations.. I mean when i move off, it will.smoothly goes to 2k rpm, den stuck for 1 or 2 sec b4 it goes up again... Link to post Share on other sites More sharing options...
Spinelli_ck 6th Gear October 22, 2014 Share October 22, 2014 On 10/22/2014 at 11:00 AM, Dieselord said: Dun feel vibrations.. I mean when i move off, it will.smoothly goes to 2k rpm, den stuck for 1 or 2 sec b4 it goes up again... were you trying to describe what you saw on the tachometer? an OBD scanner could help probe deeper into this issue. Link to post Share on other sites More sharing options...
Dieselord 2nd Gear October 30, 2014 Share October 30, 2014 after chging all coils... no such issue le... thks all.. :) Link to post Share on other sites More sharing options...
Spinelli_ck 6th Gear October 30, 2014 Share October 30, 2014 On 10/30/2014 at 3:01 AM, Dieselord said: after chging all coils... no such issue le... thks all.. :) wah, how much did it cost? did the mechanic check the status of all coils before proceeding to replace all of them? Link to post Share on other sites More sharing options...
Dieselord 2nd Gear October 30, 2014 Share October 30, 2014 total ard 500 (include labour).... use obd scanner to check, gt misfire error... after replaced, ok le... Link to post Share on other sites More sharing options...
QQDreamer 4th Gear November 6, 2014 Share November 6, 2014 On 10/30/2014 at 3:01 AM, Dieselord said: after chging all coils... no such issue le... thks all.. :) do u mean the spark plug cable or coil? if its just spark plug cable and cost you $500 is cut throat price. ↡ Advertisement Link to post Share on other sites More sharing options...
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