N80Jamie Posted November 24, 2011 Share Posted November 24, 2011 I've had a problem with the starlet for a while now. To keep it short; when lightly on the throttle at around 2000rpm i get hesitation and sometimes (usually when up hill or going round an island) a lot of juddering. Also, if you're lightly building up speed in a high gear it feels as if the car is holding back and then it will suddenly come to life after a short time. I don't think it's anything ignition related as most things have been replaced with new parts however, these are the things i've tried so far:- Ignition leads- MAF sensor- ICV- Injectors- Unplugged the TPS, same problems occurCould it be possible that the cambelt isn't timed up correctly? Only reason i say this is that it was replaced shortly before i bought the car. Quote Link to post Share on other sites
GTnomez Posted November 24, 2011 Share Posted November 24, 2011 If its underload (which it is) sounds like a misfire.In your list you havent changed the first thing i would....... spark plugs. These need to be gapped correctly too. Quote Link to post Share on other sites
GTnomez Posted November 24, 2011 Share Posted November 24, 2011 Besides is the king lead, dizzy and rotor arm in good con?Sometimes its hard to see if it is because even a hairline crack in the dizzy can make a difference.Trust. Been there Quote Link to post Share on other sites
N80Jamie Posted November 24, 2011 Author Share Posted November 24, 2011 I really dont think it is a misfire as the car just judders and never really 'misses' lol. Spark plugs are more or less brand new and are all installed correctly. Swapped king lead when i replaced the ignition leads and that wasn't the problem. I'll check the dizzy over again but it's all new! :| Really want to get to the end of this problem now lol Quote Link to post Share on other sites
GTnomez Posted November 24, 2011 Share Posted November 24, 2011 Ran a diagnostic??? Bridging the TE's?Could be a worn coolant temp sensor which over fuel in the cold weather but it depends what codes you get. Quote Link to post Share on other sites
N80Jamie Posted November 24, 2011 Author Share Posted November 24, 2011 Haven't done that yet tbh. Pretty sure there's a guide as well either on here or TGTT. I'll do this next and see if anything pops up on there Quote Link to post Share on other sites
GTnomez Posted November 24, 2011 Share Posted November 24, 2011 Yeah there is a guide, bridge TE & TE1 to enter diag mode and count the flashes.Might help narrow what it is. Quote Link to post Share on other sites
iamlegend Posted November 24, 2011 Share Posted November 24, 2011 http://www.toyotagtturbo.com/forums/showth...iagnostics-Test 1000% do this and it will most likley pop up Quote Link to post Share on other sites
N80Jamie Posted November 24, 2011 Author Share Posted November 24, 2011 Just done this and it just kept on flashing so no codes came up! The headache continues.. Quote Link to post Share on other sites
N80Jamie Posted November 24, 2011 Author Share Posted November 24, 2011 Any other ideas anyone? Quote Link to post Share on other sites
_shaun_ Posted November 24, 2011 Share Posted November 24, 2011 id check the spark plug gaps mine were slightly out and it made it low on power but wasnt giving missfires till i was proper kicking the arse out at with the td04 Quote Link to post Share on other sites
N80Jamie Posted November 24, 2011 Author Share Posted November 24, 2011 How do i check these gaps? Mine is fine when giving it death, the problem only happens when driving normally! lol Quote Link to post Share on other sites
_shaun_ Posted November 24, 2011 Share Posted November 24, 2011 need a tool like this pretty sure the spark plug gaps are listed on tgtt. any garage or anything would prob check it for u so u dont have to get the tool only take a couple mins todo worth the check its only a couple quid always best to start with the cheap things first Quote Link to post Share on other sites
Max9650 Posted December 29, 2011 Share Posted December 29, 2011 Have you found out the problem ? i had exactly the same thing, Did a diagnostic check and nothing appeared, Replaced Rotar arm, and it improved, Replaced Dizzy cap and it improved even more, replaced spark plugs and it improved more too, still had a problem until 2 weeks ago one of my intercooler pipes had popped off, since then i havnt had no juddering, so i can only assume that was the problem, boost leak... Quote Link to post Share on other sites
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