Hi everyone I've had a problem with the boost on my 94 wrx it pretty much standard it does have z4 Ecu. On my way to work this morning it was fine to start with then it would only boost to 0.5 on my lunch I took it for a spin and was fine then again on my way home it was fine to start with then it lost boost only going to 0.5 I pulled over turned engine off started back up and was fine again just wondering if anyone has experienced this any comments and advise will be very appreciated. Thanks

 

Check the fault codes. Do a tinterweb search to find out how to or search on here but that's not easy.