Jellybean Posted October 29, 2010 Share Posted October 29, 2010 How do I Diagnose what cylinder it is? If all Coil Packs are working? If Coil Pack Clips are ok? Quote Link to comment Share on other sites More sharing options...
Wez Posted October 29, 2010 Share Posted October 29, 2010 Is it misfiring under load or on idle? Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 Is it misfiring under load or on idle? Load Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 29, 2010 Share Posted October 29, 2010 You cant really under load, manual or auto? Quote Link to comment Share on other sites More sharing options...
Nic Posted October 29, 2010 Share Posted October 29, 2010 You could try taking it for a run and then pulling the plugs to see if there's one that is obviously different in colour - there may be no noticeable difference but it's worth a try. If you're sure the coil packs and connectors okay, try fitting a fresh set of plugs to see if it cures the problem. Quote Link to comment Share on other sites More sharing options...
Wez Posted October 29, 2010 Share Posted October 29, 2010 Load Get it to a rolling road, the only place you can really get the motor on load and still poke around the engine bay Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 You could try taking it for a run and then pulling the plugs to see if there's one that is obviously different in colour - there may be no noticeable difference but it's worth a try. If you're sure the coil packs and connectors okay, try fitting a fresh set of plugs to see if it cures the problem. Just changed the Plugs on Saturday, no joy Found plug one oil on her but looks like the Cam Seals are weeping and god knows for how long could be up to a year Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 The Breather cam pipes need replacing so was goin to do all 6 Coil pack clips as well and see if it is cured If not up to SSI Quote Link to comment Share on other sites More sharing options...
JakeG Posted October 29, 2010 Share Posted October 29, 2010 I'm sure collin or Marty will no straight away, give Marty a pm and he mite no off the top of his head and save you driving whole way up here Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 You cant really under load, manual or auto? Manual Jspec TT RZ BPU Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 I'm sure collin or Marty will no straight away, give Marty a pm and he mite no off the top of his head and save you driving whole way up here Was talking to Marty, you dont know till you look at it Just a hassle they are so far away Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 29, 2010 Share Posted October 29, 2010 Its gonna be a coil or a coil plug, no need to drive that far Just need to isolate which one. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 Its gonna be a coil or a coil plug, no need to drive that far Just need to isolate which one. when you say coil or coil plug thats coil pack clip or coil pack? Spark plugs just changed on Saturday and to be honest the Clips have seen better days Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 29, 2010 Share Posted October 29, 2010 The clips, I call them plugs, they do plug into the coil after all lol If it was fine before and youve disturbed them then its logical thats the cause Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 The clips, I call them plugs, they do plug into the coil after all lol If it was fine before and youve disturbed them then its logical thats the cause It started two weeks ago so taught it was the spark plugs, but replacing them didnt solve it, so New breather Cam pipes and Clips , I will see if the clips do the trick Anything else obvious i should check? Quote Link to comment Share on other sites More sharing options...
Nic Posted October 29, 2010 Share Posted October 29, 2010 Just changed the Plugs on Saturday, no joy Was it misfiring before the plug change? If so, was it running fine before with the old plugs and then just started to misfire? Have you changed anything else, eg. increased the boost? Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 Was it misfiring before the plug change? If so, was it running fine before with the old plugs and then just started to misfire? Have you changed anything else, eg. increased the boost? Got full service everything done at Supra Specialist over here a few weeks ago , running great then two weeks ago she wont go over 1.0 bar ;.0.9 bar Nothing changed or touched Miss fire, so this is why I changed the plugs , they where last done at the start of the Summer Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 29, 2010 Share Posted October 29, 2010 Its gonna be spark related, breaking down under load, coil pack or clip Quote Link to comment Share on other sites More sharing options...
Nic Posted October 29, 2010 Share Posted October 29, 2010 Got full service everything done at Supra Specialist over here a few weeks ago , running great then two weeks ago she wont go over 1.0 bar ;.0.9 bar Nothing changed or touched Miss fire, so this is why I changed the plugs , they where last done at the start of the Summer Okay just double checking is wasn't plug related. If it was running fine before and suddenly started misfiring and you've replaced with new plugs of the same spec then that rules them out. You mentioned oil when you removed the plugs, did you replace the cam cover seals? When you get the coil pack connectors done check for oil again if they weren't replaced. Its gonna be spark related, breaking down under load, coil pack or clip Agree, probably the connectors if they haven't been replaced. Quote Link to comment Share on other sites More sharing options...
jevansio Posted October 29, 2010 Share Posted October 29, 2010 Its gonna be spark related, breaking down under load, coil pack or clip Right on, Step 1) Follow Ian C's guide to refreshing the coil pack connector contact Step 2) Swap a set of coilpacks in from a known working high boost engine Step 3) Swap an ignitor from a known working car just to eliminate Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 Didnt do the seals or clean up the oil in the spark plug well if thats what u call it Breather pipes need replacing so waiting on them too Dont know if it matters but it appears to happen only after 2nd tubbie comes online 3500-4K rpm Is it ok to use autoglym engine cleaner to clean up the oil with the spark plugs still in ? Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 Right on, Step 1) Follow Ian C's guide to refreshing the coil pack connector contact Step 2) Swap a set of coilpacks in from a known working high boost engine Step 3) Swap an ignitor from a known working car just to eliminate Goin with Ian's Guide alright, I will get the SuperSpark coil packs next I think No other Supra's around here I am afraid to try parts so it will be up SSI if the clips dont work Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 29, 2010 Share Posted October 29, 2010 Any Soarers? Same parts Quote Link to comment Share on other sites More sharing options...
jevansio Posted October 29, 2010 Share Posted October 29, 2010 Going on the assumption only 1 coil is playing up, if money is tight buying one and swapping it in sequence would be an option. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted October 29, 2010 Author Share Posted October 29, 2010 Any Soarers? Same parts No mate nothing just skylines over here Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.