94 import wrx missing when holding about 2000 rpm it seems to be fine when accelerating and decelerating anybody came across this before

 

have you checked your ecu for error codes.

Coil packs, spark plugs etc etc.

Oolix

 

kept geting number 54 from ecu but the fault sheet that ive got only goes to 51

 

did another diagnostics check the day throttle position sensor came up any body no where this is located on the ej20

 

next to the throttle body?

 

If you did get fault code 54 it is - Choke Control System

Oolix

 

Sorry to jump in unannounced but ive the same problem with my wrx, always seems to stop when warmed up, this choke control is it a simple sensor in need of replacing?

 

The Jap WRX does not have a TPS. This code is not applicable. More likely to be plugs or coils. Try plugs first and gap them perfectly.

 

exellent guys got plugs n leads havnt changed them yet but see if it was the 1 of the coils would it not be missing all the time it just seems to jerk when you hold it at a steady speed but it clears when you give it throttle?

 

sounds like coil packs.

 

you can get all sorts of weird codes when something goes wrong, the ecu is not infalliable, it does sound to me like it could be to do with plugs and coils, i would have said thats your first step, then see how you go from there. You could also chuck some injector cleaner through it too, wouldnt hurt.

 

is the coils of the turbo 2000 uk model the same as the wrx import

 

they might well be if they are the same age, but i would get the right ones, there are plenty on ebay for about 50 quid each, new, which is not a bad price, or you could risk it like i did and get 3 second hand ones for 50 quid, 2 dont work!!!