Hi all, wow it seems the st184's are the topic of discussion, lol. Well im not really a car enthusiast but fairly handy when it comes do diy jobs with instructions. So, after basic service of my 90 celica I checked the timing and re-adjusted to 14btdc (not the first time) and a problem presents itself under acceleration. At times at low rpm engine gets no ignition, just poping sounds out of exhaust without revs climbing until I lift off a little from the accelerator then resume to get to speed. OR worse, the same thing but engine is retarding instead of missing and whole car, especially left front manual transaxel end is stuttering until i lift off the accel pedal. Double check the timing and it is definetly set at 14btdc, so advanded some more and problem doesn't exsist (even has an increase in pickup in mid range) but engine is ticking. Filled up with Shell Vpower and no ticking but initial problem re-occurs. Set timing to factory 10btdc and problem is much worse, sometimes occurs when getting off from 0kph. Set back to 14btdc and almost as bad, today not sure where it is as havent checked the timing after advancing half way to work, but it has reduced problems fair bit and definitely over 14btdc without any ticking. And yes timing is done when TE1 E1 is tripped. Dont think its the dizzy or coil assembly, got them replaced not too long ago. Havent replaced leads and got champion plugs. Im thinking if there is anything else to reset besides the ECU? but like intro says i dont really know much about cars, only get my hands dirty when I know what im looking for. Any help would be much appreciated. CHEERS