help needed please

[CraigWWW]

Has he flooded it?

If so tell him to follow the procedure for starting a flooded car...always worked wonders for me. Do a search for the threads.

[K1HKS arse]

Stock ecu?

If so sounds like engine running in default which fixes timing and fuelling and doesnt allow any hard driving as you have described.This default can be caused by many things,all of which are electrically connected like - rats nest solenoids,metering pump,crank angle sensors,water and pressure sensors.All of these things could be reading wrong due to getting wrong or no signal like - solenoid on rats nest which has a split pipe

Ideally get a diagnostic check on it. Try an ecu reset as said before as this might clear an old ecu fault that is causing default, maybe from the split pipe you changed.If not the quickest way is plugged into a diagnostic machine that can read mazda ecu.If you cant do that then its a process of elimination with swapping out parts.

Good luck.

[adib]

dont no if he has flooded it going over saturday to have a look at it so hopfully ill find the problem