Steve_S13

Cheers mate :)

what part number is it and I can probably tell you whether its a UK or Jap Spec Engine either 89-95 or 96-98 Let me know.. Just taking a simply pic of the ECU casing with the sticker on and emailing it to me will tell me alot :thumbs:

You tried swapping an injector ?

Leo the person that tuned it should know to advise their client/friend/customer that excess unburnt fuel and popping n cracking is of no gain and simply a waste of fuel and no good for the engine. Fouls plugs Wears valves Generates uncessary combustion chamber pressures raises exhaust gas temperatures and simply speeds up engine wear therefore reducing the life of piston valves as well as coking up the chambers and valves and piston crowns with solid carbon (which also increased the chances of detonation) If they want anti lag then fit a proper management system and set the engine up accordingly :) Black Zed have you had a timing light on the engine and done the basics dude ??? If it only does it below 2k then it could be that the CAS needs checking/adjusting to suit the timing values programmed on whatever chip it is.. So long as it doesnt do it consistently all the time then it shouldnt be too much of a bother Loose injector connectors?? definitely get those sorted.. ive seen one or two engines kill a piston due to connectors just shoved on :( could even be a weak coil pack not firing 100% there old cars at the end of the day really

Check the static timing of the engine first to ensure it's not too retarded

Its definitely likely to be Unburnt fuel exploding in the hot cylinders, timings to retarded either on the engine or the ecu. Either that or you have a mild air leak or a tired Landa sensor that's nit monitoring mixtures efficiently