Brodierx7 Posted November 2, 2014 Share Posted November 2, 2014 Hi folks, got some problems with the supra any help would be very much appreciated! Basically when its on boost its just a but lumpy and splutters, also under idle its not very steady and revs up and down. Its had new spark plugs and super spark coils fitted early on in the year. I have a video of idle but don't know if I can upload it to this? Quote Link to comment Share on other sites More sharing options...
drift_bear Posted November 2, 2014 Share Posted November 2, 2014 Have you a FCD fitted to the car? What level of boost are you running (or trying to run). As for the idle i suggest fitting stock coil packs and then reset the ecu to learn the rev again. Is there any stored fault codes? Where are you located? Quote Link to comment Share on other sites More sharing options...
tony tt Posted November 2, 2014 Share Posted November 2, 2014 Potentially an issue with the super spark coils. Lots of issues regarding aftermarket coil packs. Have you tried oem packs? The idle control valve may need a clean mate. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted November 2, 2014 Share Posted November 2, 2014 Change the spark plugs again if they're copper cores. Also check the coil pack clips Quote Link to comment Share on other sites More sharing options...
listy Posted November 2, 2014 Share Posted November 2, 2014 Change the spark plugs again if they're copper cores. Also check the coil pack clips +1 for coil pack clips. Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 2, 2014 Author Share Posted November 2, 2014 Its running around 1.5 bar, it used to have oem packs but they were tested I think and were knackered. So is the super spark ones not much use? Where is the idle control valve? Ive not been very hands on with it just yet but need to as im in Orkney and not really anyone here I would take it to! Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted November 2, 2014 Share Posted November 2, 2014 1.5bar is quite a bit of boost, what plugs are you using? Whats the plug gap? Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 2, 2014 Author Share Posted November 2, 2014 Ok so check coil pack clips for what? broken/ brittle wires? Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 2, 2014 Author Share Posted November 2, 2014 im not sure what plugs was put in or what the gap is yet. If I have time I will pull them out tonight to have a look! Quote Link to comment Share on other sites More sharing options...
drift_bear Posted November 2, 2014 Share Posted November 2, 2014 I'm assuming your running a single turbo? If I wasn't away on holiday Tuesday, I would of came up and had a look for you (also see my best mate at the same time lol) Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 2, 2014 Author Share Posted November 2, 2014 yes its single turbo indeed. Ah damn! lol never mind the holiday come here and have a look haha. Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 2, 2014 Author Share Posted November 2, 2014 Who is your mate? this is a small place! Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted November 2, 2014 Share Posted November 2, 2014 I had hunting idle RPM on my TT and that was a cracked TPS Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 3, 2014 Author Share Posted November 3, 2014 Where abouts is the tps? I will have a look tonight after work and see if I can find anything. Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 3, 2014 Author Share Posted November 3, 2014 I took a plug out and its a ngk iridium BKR6EIX, im not sure what the gap should be but the gauge I have says 1/16 or 25? Plug looks bit black also. Quote Link to comment Share on other sites More sharing options...
drift_bear Posted November 3, 2014 Share Posted November 3, 2014 Who is your mate? this is a small place! He's an older guy this works at stromness and hatston doing security, mark Williams I took a plug out and its a ngk iridium BKR6EIX, im not sure what the gap should be but the gauge I have says 1/16 or 25? Plug looks bit black also. Your spark plugs are wrong, this is taken from the tech section from here Single Turbo/Big Twins @ upto 1.3bar NGK - BCPR7ES (3330) - gap 0.7mm NGK - BKR7E (6097) - gap 0.7mm NGK - BKR8E - gap to 0.7mm NGK Iridium - BKR7EIX/BKR8EIX - leave gap alone Denso Iridium - IK24 - leave gap alone Single Turbo/Big Twins @ upto 1.8bar NGK - BCR8ES - gap 0.6-0.7mm NGK - BKR8E - gap 0.6-0.7mm NGK Iridium - BKR8EIX - leave gap alone Denso Iridium - IK27 - leave gap alone Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 3, 2014 Author Share Posted November 3, 2014 Hmm don't think I know him. Right so this might not be helping! Why would it have ran ok on these plugs before and start playing up now? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted November 3, 2014 Share Posted November 3, 2014 A 6 range plug will certainly not be helping your situation! Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 4, 2014 Author Share Posted November 4, 2014 What's the best plug to go for then? I got the idle control valve of and it looks fairly dirty so will give it a clean up tonight. Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 4, 2014 Author Share Posted November 4, 2014 Also the idle control valve has a small itg filter off it, looks fairly dirty? Could this affect anything? Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 4, 2014 Author Share Posted November 4, 2014 Got the idle control valve off and cleaned but how the hell do you get that 2 lower pipes back on!? Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 4, 2014 Author Share Posted November 4, 2014 got them back on. Just need to decide what plugs is best? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted November 4, 2014 Share Posted November 4, 2014 Go with the advice above Single Turbo/Big Twins @ upto 1.8bar NGK - BCR8ES - gap 0.6-0.7mm NGK - BKR8E - gap 0.6-0.7mm NGK Iridium - BKR8EIX - leave gap alone Denso Iridium - IK27 - leave gap alone Quote Link to comment Share on other sites More sharing options...
Brodierx7 Posted November 8, 2014 Author Share Posted November 8, 2014 Got the ngk iradium bkr8eix fitted tonight and with the idle control valve cleaned out I took it a blast and definitely better! The odd time there's just a tiny splutter it's not very noticeable probably can't even call it a splutter, but could this be down to the colder weather causeing the ecu to come in? And the idle is spot on now! Was good to feel the boost again cheers for the help folks! Quote Link to comment Share on other sites More sharing options...
rider Posted November 9, 2014 Share Posted November 9, 2014 Hi folks, got some problems with the supra any help would be very much appreciated! Basically when its on boost its just a but lumpy and splutters, Are you sure you aren't just hitting the rev limiter Quote Link to comment Share on other sites More sharing options...
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